./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh --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 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d --- 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-2329fc7 [2022-12-14 06:22:49,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:22:49,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:22:49,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:22:49,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:22:49,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:22:49,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:22:49,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:22:49,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:22:49,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:22:49,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:22:49,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:22:49,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:22:49,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:22:49,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:22:49,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:22:49,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:22:49,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:22:49,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:22:49,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:22:49,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:22:49,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:22:49,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:22:49,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:22:49,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:22:49,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:22:49,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:22:49,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:22:49,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:22:49,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:22:49,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:22:49,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:22:49,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:22:49,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:22:49,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:22:49,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:22:49,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:22:49,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:22:49,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:22:49,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:22:49,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:22:49,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:22:49,399 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:22:49,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:22:49,400 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:22:49,400 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:22:49,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:22:49,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:22:49,401 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:22:49,401 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:22:49,401 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:22:49,402 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:22:49,402 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:22:49,402 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:22:49,402 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:22:49,402 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:22:49,403 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:22:49,403 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:22:49,403 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:22:49,403 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:22:49,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:22:49,404 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:22:49,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:22:49,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:22:49,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:22:49,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:22:49,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:22:49,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:22:49,405 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:22:49,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:22:49,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:22:49,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:22:49,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:22:49,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:22:49,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:22:49,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:22:49,407 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:22:49,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:22:49,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:22:49,407 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:22:49,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:22:49,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:22:49,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:22:49,408 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_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d [2022-12-14 06:22:49,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:22:49,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:22:49,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:22:49,627 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:22:49,628 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:22:49,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/floats-cbmc-regression/float5.c [2022-12-14 06:22:52,150 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:22:52,306 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:22:52,307 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/sv-benchmarks/c/floats-cbmc-regression/float5.c [2022-12-14 06:22:52,311 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/data/6163ed518/b7d8dab52e3044dd8449d96c63b35d39/FLAGab10b5d12 [2022-12-14 06:22:52,729 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/data/6163ed518/b7d8dab52e3044dd8449d96c63b35d39 [2022-12-14 06:22:52,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:22:52,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:22:52,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:22:52,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:22:52,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:22:52,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47945ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52, skipping insertion in model container [2022-12-14 06:22:52,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:22:52,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:22:52,864 WARN L237 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_d0227dc5-2881-4201-8d19-295b14905b6b/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2022-12-14 06:22:52,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:22:52,876 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:22:52,886 WARN L237 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_d0227dc5-2881-4201-8d19-295b14905b6b/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2022-12-14 06:22:52,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:22:52,896 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:22:52,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52 WrapperNode [2022-12-14 06:22:52,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:22:52,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:22:52,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:22:52,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:22:52,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,918 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-12-14 06:22:52,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:22:52,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:22:52,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:22:52,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:22:52,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,930 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:22:52,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:22:52,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:22:52,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:22:52,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52" (1/1) ... [2022-12-14 06:22:52,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:22:52,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:22:52,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:22:52,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:22:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:22:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:22:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:22:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:22:53,028 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:22:53,030 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:22:53,084 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:22:53,106 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:22:53,106 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:22:53,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:22:53 BoogieIcfgContainer [2022-12-14 06:22:53,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:22:53,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:22:53,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:22:53,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:22:53,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:22:52" (1/3) ... [2022-12-14 06:22:53,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c6dc96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:22:53, skipping insertion in model container [2022-12-14 06:22:53,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:52" (2/3) ... [2022-12-14 06:22:53,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c6dc96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:22:53, skipping insertion in model container [2022-12-14 06:22:53,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:22:53" (3/3) ... [2022-12-14 06:22:53,114 INFO L112 eAbstractionObserver]: Analyzing ICFG float5.c [2022-12-14 06:22:53,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:22:53,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:22:53,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:22:53,168 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;@7bd16e93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:22:53,168 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:22:53,171 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) [2022-12-14 06:22:53,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 06:22:53,176 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:22:53,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 06:22:53,177 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:22:53,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:22:53,181 INFO L85 PathProgramCache]: Analyzing trace with hash 53240, now seen corresponding path program 1 times [2022-12-14 06:22:53,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:22:53,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118414955] [2022-12-14 06:22:53,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:53,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:22:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:22:53,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:22:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:22:53,270 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:22:53,272 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:22:53,273 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 06:22:53,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:22:53,278 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 06:22:53,281 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:22:53,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:22:53 BoogieIcfgContainer [2022-12-14 06:22:53,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:22:53,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:22:53,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:22:53,290 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:22:53,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:22:53" (3/4) ... [2022-12-14 06:22:53,293 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:22:53,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:22:53,294 INFO L158 Benchmark]: Toolchain (without parser) took 560.98ms. Allocated memory is still 123.7MB. Free memory was 90.0MB in the beginning and 53.9MB in the end (delta: 36.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-14 06:22:53,294 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 123.7MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:22:53,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.08ms. Allocated memory is still 123.7MB. Free memory was 89.5MB in the beginning and 79.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 06:22:53,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.56ms. Allocated memory is still 123.7MB. Free memory was 79.5MB in the beginning and 78.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:22:53,295 INFO L158 Benchmark]: Boogie Preprocessor took 13.70ms. Allocated memory is still 123.7MB. Free memory was 78.3MB in the beginning and 77.4MB in the end (delta: 916.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:22:53,296 INFO L158 Benchmark]: RCFGBuilder took 175.34ms. Allocated memory is still 123.7MB. Free memory was 77.4MB in the beginning and 67.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 06:22:53,296 INFO L158 Benchmark]: TraceAbstraction took 179.72ms. Allocated memory is still 123.7MB. Free memory was 66.9MB in the beginning and 54.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 06:22:53,296 INFO L158 Benchmark]: Witness Printer took 3.16ms. Allocated memory is still 123.7MB. Free memory was 54.3MB in the beginning and 53.9MB in the end (delta: 456.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:22:53,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 123.7MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.08ms. Allocated memory is still 123.7MB. Free memory was 89.5MB in the beginning and 79.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.56ms. Allocated memory is still 123.7MB. Free memory was 79.5MB in the beginning and 78.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.70ms. Allocated memory is still 123.7MB. Free memory was 78.3MB in the beginning and 77.4MB in the end (delta: 916.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 175.34ms. Allocated memory is still 123.7MB. Free memory was 77.4MB in the beginning and 67.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 179.72ms. Allocated memory is still 123.7MB. Free memory was 66.9MB in the beginning and 54.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.16ms. Allocated memory is still 123.7MB. Free memory was 54.3MB in the beginning and 53.9MB in the end (delta: 456.3kB). 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: 14]: 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 14, overapproximation of someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L8] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L8] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L10] COND FALSE !(!(a==1 || a==0.5 || a==2 || a==3 || a==0.1)) [L11] b=a [L12] a/=2 [L13] a*=2 [L14] COND TRUE !(a==b) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, 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 [2022-12-14 06:22:53,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh --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 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d --- 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-2329fc7 [2022-12-14 06:22:54,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:22:54,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:22:54,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:22:54,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:22:54,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:22:54,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:22:54,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:22:54,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:22:54,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:22:54,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:22:54,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:22:54,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:22:54,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:22:54,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:22:54,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:22:54,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:22:54,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:22:54,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:22:54,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:22:54,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:22:54,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:22:54,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:22:54,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:22:54,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:22:54,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:22:54,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:22:54,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:22:54,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:22:54,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:22:54,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:22:54,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:22:54,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:22:54,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:22:54,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:22:54,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:22:54,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:22:54,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:22:54,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:22:54,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:22:54,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:22:54,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 06:22:54,913 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:22:54,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:22:54,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:22:54,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:22:54,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:22:54,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:22:54,915 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:22:54,915 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:22:54,915 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:22:54,915 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:22:54,916 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:22:54,916 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:22:54,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:22:54,917 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:22:54,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:22:54,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:22:54,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:22:54,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:22:54,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:22:54,918 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:22:54,918 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:22:54,918 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:22:54,918 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:22:54,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:22:54,919 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:22:54,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:22:54,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:22:54,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:22:54,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:22:54,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:22:54,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:22:54,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:22:54,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:22:54,921 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:22:54,921 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:22:54,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:22:54,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:22:54,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:22:54,921 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_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d [2022-12-14 06:22:55,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:22:55,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:22:55,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:22:55,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:22:55,145 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:22:55,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/floats-cbmc-regression/float5.c [2022-12-14 06:22:57,656 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:22:57,796 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:22:57,796 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/sv-benchmarks/c/floats-cbmc-regression/float5.c [2022-12-14 06:22:57,801 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/data/af9a78995/ade8298935014bc4825e258aeb0b6c01/FLAG92ee46e07 [2022-12-14 06:22:58,211 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/data/af9a78995/ade8298935014bc4825e258aeb0b6c01 [2022-12-14 06:22:58,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:22:58,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:22:58,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:22:58,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:22:58,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:22:58,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e458f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58, skipping insertion in model container [2022-12-14 06:22:58,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:22:58,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:22:58,348 WARN L237 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_d0227dc5-2881-4201-8d19-295b14905b6b/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2022-12-14 06:22:58,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:22:58,366 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:22:58,379 WARN L237 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_d0227dc5-2881-4201-8d19-295b14905b6b/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2022-12-14 06:22:58,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:22:58,393 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:22:58,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58 WrapperNode [2022-12-14 06:22:58,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:22:58,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:22:58,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:22:58,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:22:58,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,421 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-12-14 06:22:58,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:22:58,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:22:58,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:22:58,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:22:58,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,444 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:22:58,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:22:58,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:22:58,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:22:58,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58" (1/1) ... [2022-12-14 06:22:58,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:22:58,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:22:58,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:22:58,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:22:58,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:22:58,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:22:58,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:22:58,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 06:22:58,559 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:22:58,561 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:22:58,921 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:22:58,925 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:22:58,925 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:22:58,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:22:58 BoogieIcfgContainer [2022-12-14 06:22:58,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:22:58,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:22:58,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:22:58,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:22:58,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:22:58" (1/3) ... [2022-12-14 06:22:58,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d7b5d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:22:58, skipping insertion in model container [2022-12-14 06:22:58,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:22:58" (2/3) ... [2022-12-14 06:22:58,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d7b5d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:22:58, skipping insertion in model container [2022-12-14 06:22:58,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:22:58" (3/3) ... [2022-12-14 06:22:58,933 INFO L112 eAbstractionObserver]: Analyzing ICFG float5.c [2022-12-14 06:22:58,946 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:22:58,946 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:22:58,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:22:58,983 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;@157767e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:22:58,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:22:58,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 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) [2022-12-14 06:22:58,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 06:22:58,991 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:22:58,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 06:22:58,991 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:22:58,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:22:58,995 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2022-12-14 06:22:59,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:22:59,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509518940] [2022-12-14 06:22:59,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:59,005 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 [2022-12-14 06:22:59,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:22:59,006 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:22:59,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:22:59,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 06:22:59,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:22:59,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:22:59,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:22:59,129 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:22:59,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509518940] [2022-12-14 06:22:59,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509518940] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:22:59,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:22:59,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:22:59,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072716162] [2022-12-14 06:22:59,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:22:59,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:22:59,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:22:59,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:22:59,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:22:59,157 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-12-14 06:22:59,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:22:59,166 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-12-14 06:22:59,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:22:59,168 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) Word has length 6 [2022-12-14 06:22:59,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:22:59,173 INFO L225 Difference]: With dead ends: 17 [2022-12-14 06:22:59,173 INFO L226 Difference]: Without dead ends: 7 [2022-12-14 06:22:59,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:22:59,177 INFO L413 NwaCegarLoop]: 9 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, 9 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 [2022-12-14 06:22:59,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:22:59,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-12-14 06:22:59,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-12-14 06:22:59,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 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) [2022-12-14 06:22:59,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2022-12-14 06:22:59,198 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2022-12-14 06:22:59,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:22:59,199 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2022-12-14 06:22:59,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-12-14 06:22:59,199 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2022-12-14 06:22:59,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 06:22:59,199 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:22:59,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 06:22:59,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:59,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:59,400 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:22:59,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:22:59,401 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2022-12-14 06:22:59,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:22:59,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144639877] [2022-12-14 06:22:59,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:59,401 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 [2022-12-14 06:22:59,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:22:59,402 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:22:59,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:22:59,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 06:22:59,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:23:10,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:23:10,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:23:10,514 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:23:10,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144639877] [2022-12-14 06:23:10,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144639877] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:23:10,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:23:10,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:23:10,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095116226] [2022-12-14 06:23:10,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:23:10,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:23:10,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:23:10,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:23:10,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:23:10,517 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) [2022-12-14 06:23:24,407 WARN L233 SmtUtils]: Spent 11.30s on a formula simplification. DAG size of input: 33 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:23:24,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:23:24,408 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2022-12-14 06:23:24,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:23:24,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) Word has length 6 [2022-12-14 06:23:24,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:23:24,408 INFO L225 Difference]: With dead ends: 7 [2022-12-14 06:23:24,408 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 06:23:24,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:23:24,409 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:23:24,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 06:23:24,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 06:23:24,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 06:23:24,410 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) [2022-12-14 06:23:24,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 06:23:24,411 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2022-12-14 06:23:24,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:23:24,411 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 06:23:24,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) [2022-12-14 06:23:24,411 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 06:23:24,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 06:23:24,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 06:23:24,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:23:24,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:23:24,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 06:23:24,621 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 06:23:24,621 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-14 06:23:24,621 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-14 06:23:24,621 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-12-14 06:23:24,622 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2022-12-14 06:23:24,622 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2022-12-14 06:23:24,622 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-12-14 06:23:24,622 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 06:23:24,622 INFO L899 garLoopResultBuilder]: For program point L10-2(line 10) no Hoare annotation was computed. [2022-12-14 06:23:24,622 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 15) no Hoare annotation was computed. [2022-12-14 06:23:24,626 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 06:23:24,628 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:23:24,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:23:24 BoogieIcfgContainer [2022-12-14 06:23:24,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:23:24,633 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:23:24,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:23:24,634 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:23:24,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:22:58" (3/4) ... [2022-12-14 06:23:24,637 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 06:23:24,644 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-14 06:23:24,644 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 06:23:24,644 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 06:23:24,644 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 06:23:24,664 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:23:24,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:23:24,664 INFO L158 Benchmark]: Toolchain (without parser) took 26450.42ms. Allocated memory is still 60.8MB. Free memory was 39.8MB in the beginning and 31.4MB in the end (delta: 8.4MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-12-14 06:23:24,665 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory is still 28.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:23:24,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.60ms. Allocated memory is still 60.8MB. Free memory was 39.6MB in the beginning and 29.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 06:23:24,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.14ms. Allocated memory is still 60.8MB. Free memory was 29.2MB in the beginning and 27.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:23:24,665 INFO L158 Benchmark]: Boogie Preprocessor took 25.32ms. Allocated memory is still 60.8MB. Free memory was 27.6MB in the beginning and 42.3MB in the end (delta: -14.7MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-12-14 06:23:24,666 INFO L158 Benchmark]: RCFGBuilder took 479.43ms. Allocated memory is still 60.8MB. Free memory was 42.3MB in the beginning and 33.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 06:23:24,666 INFO L158 Benchmark]: TraceAbstraction took 25704.44ms. Allocated memory is still 60.8MB. Free memory was 32.9MB in the beginning and 33.8MB in the end (delta: -862.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:23:24,666 INFO L158 Benchmark]: Witness Printer took 30.74ms. Allocated memory is still 60.8MB. Free memory was 33.8MB in the beginning and 31.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:23:24,668 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory is still 28.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.60ms. Allocated memory is still 60.8MB. Free memory was 39.6MB in the beginning and 29.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.14ms. Allocated memory is still 60.8MB. Free memory was 29.2MB in the beginning and 27.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.32ms. Allocated memory is still 60.8MB. Free memory was 27.6MB in the beginning and 42.3MB in the end (delta: -14.7MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * RCFGBuilder took 479.43ms. Allocated memory is still 60.8MB. Free memory was 42.3MB in the beginning and 33.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 25704.44ms. Allocated memory is still 60.8MB. Free memory was 32.9MB in the beginning and 33.8MB in the end (delta: -862.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 30.74ms. Allocated memory is still 60.8MB. Free memory was 33.8MB in the beginning and 31.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 76 SizeOfPredicates, 3 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 06:23:24,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0227dc5-2881-4201-8d19-295b14905b6b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE