./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/digits_while.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/digits_while.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs --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 4eb7ec87e4b26eecb67fe680444df008acb1d5ac2a26461a17b628d29f2e5ff2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:29:36,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:29:36,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:29:36,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:29:36,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:29:36,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:29:36,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:29:36,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:29:36,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:29:36,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:29:36,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:29:36,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:29:36,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:29:36,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:29:36,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:29:36,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:29:36,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:29:36,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:29:36,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:29:36,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:29:36,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:29:36,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:29:36,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:29:36,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:29:36,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:29:36,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:29:36,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:29:36,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:29:36,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:29:36,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:29:36,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:29:36,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:29:36,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:29:36,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:29:36,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:29:36,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:29:36,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:29:36,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:29:36,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:29:36,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:29:36,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:29:36,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:29:36,453 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:29:36,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:29:36,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:29:36,455 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:29:36,455 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:29:36,455 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:29:36,456 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:29:36,456 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:29:36,464 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:29:36,465 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:29:36,465 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:29:36,465 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:29:36,465 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:29:36,465 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:29:36,466 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:29:36,466 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:29:36,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:29:36,467 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:29:36,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:29:36,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:29:36,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:29:36,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:29:36,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:29:36,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:29:36,469 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:29:36,469 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:29:36,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:29:36,469 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:29:36,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:29:36,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:29:36,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:29:36,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:29:36,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:29:36,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:29:36,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:29:36,471 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:29:36,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:29:36,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:29:36,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:29:36,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:29:36,473 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eb7ec87e4b26eecb67fe680444df008acb1d5ac2a26461a17b628d29f2e5ff2 [2021-11-19 14:29:36,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:29:36,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:29:36,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:29:36,837 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:29:36,838 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:29:36,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/floats-esbmc-regression/digits_while.c [2021-11-19 14:29:36,943 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/data/f6d07f071/f8ca02ed9d6041cbb30e2ac48e1a4c92/FLAGd1bdd416f [2021-11-19 14:29:37,437 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:29:37,437 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/sv-benchmarks/c/floats-esbmc-regression/digits_while.c [2021-11-19 14:29:37,444 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/data/f6d07f071/f8ca02ed9d6041cbb30e2ac48e1a4c92/FLAGd1bdd416f [2021-11-19 14:29:37,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/data/f6d07f071/f8ca02ed9d6041cbb30e2ac48e1a4c92 [2021-11-19 14:29:37,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:29:37,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:29:37,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:29:37,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:29:37,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:29:37,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:29:37" (1/1) ... [2021-11-19 14:29:37,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4aef9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:37, skipping insertion in model container [2021-11-19 14:29:37,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:29:37" (1/1) ... [2021-11-19 14:29:37,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:29:37,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:29:38,014 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/sv-benchmarks/c/floats-esbmc-regression/digits_while.c[317,330] [2021-11-19 14:29:38,035 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:29:38,049 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:29:38,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/sv-benchmarks/c/floats-esbmc-regression/digits_while.c[317,330] [2021-11-19 14:29:38,081 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:29:38,096 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:29:38,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:38 WrapperNode [2021-11-19 14:29:38,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:29:38,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:29:38,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:29:38,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:29:38,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:38" (1/1) ... [2021-11-19 14:29:38,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:38" (1/1) ... [2021-11-19 14:29:38,136 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2021-11-19 14:29:38,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:29:38,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:29:38,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:29:38,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:29:38,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:38" (1/1) ... [2021-11-19 14:29:38,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:38" (1/1) ... [2021-11-19 14:29:38,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:38" (1/1) ... [2021-11-19 14:29:38,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:38" (1/1) ... [2021-11-19 14:29:38,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:38" (1/1) ... [2021-11-19 14:29:38,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:38" (1/1) ... [2021-11-19 14:29:38,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:38" (1/1) ... [2021-11-19 14:29:38,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:29:38,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:29:38,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:29:38,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:29:38,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:38" (1/1) ... [2021-11-19 14:29:38,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:29:38,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:29:38,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:29:38,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:29:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:29:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:29:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:29:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:29:38,365 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:29:38,368 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:29:38,545 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:29:38,578 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:29:38,579 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:29:38,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:29:38 BoogieIcfgContainer [2021-11-19 14:29:38,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:29:38,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:29:38,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:29:38,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:29:38,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:29:37" (1/3) ... [2021-11-19 14:29:38,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9a674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:29:38, skipping insertion in model container [2021-11-19 14:29:38,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:38" (2/3) ... [2021-11-19 14:29:38,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9a674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:29:38, skipping insertion in model container [2021-11-19 14:29:38,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:29:38" (3/3) ... [2021-11-19 14:29:38,604 INFO L111 eAbstractionObserver]: Analyzing ICFG digits_while.c [2021-11-19 14:29:38,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:29:38,611 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:29:38,667 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:29:38,676 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:29:38,677 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:29:38,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:29:38,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-19 14:29:38,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:29:38,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-19 14:29:38,713 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:29:38,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:29:38,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1850503, now seen corresponding path program 1 times [2021-11-19 14:29:38,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:29:38,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647803806] [2021-11-19 14:29:38,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:38,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:29:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:29:38,859 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:29:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:29:38,918 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 14:29:38,921 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:29:38,923 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:29:38,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:29:38,932 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-19 14:29:38,935 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:29:38,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:29:38 BoogieIcfgContainer [2021-11-19 14:29:38,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:29:38,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:29:38,971 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:29:38,971 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:29:38,972 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:29:38" (3/4) ... [2021-11-19 14:29:38,976 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:29:38,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:29:38,979 INFO L158 Benchmark]: Toolchain (without parser) took 1162.56ms. Allocated memory is still 125.8MB. Free memory was 82.0MB in the beginning and 75.5MB in the end (delta: 6.4MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2021-11-19 14:29:38,980 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 125.8MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:29:38,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.41ms. Allocated memory is still 125.8MB. Free memory was 81.7MB in the beginning and 100.7MB in the end (delta: -18.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:29:38,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.42ms. Allocated memory is still 125.8MB. Free memory was 100.7MB in the beginning and 99.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:29:38,986 INFO L158 Benchmark]: Boogie Preprocessor took 27.00ms. Allocated memory is still 125.8MB. Free memory was 99.1MB in the beginning and 98.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:29:38,994 INFO L158 Benchmark]: RCFGBuilder took 417.61ms. Allocated memory is still 125.8MB. Free memory was 98.1MB in the beginning and 88.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:29:38,995 INFO L158 Benchmark]: TraceAbstraction took 377.71ms. Allocated memory is still 125.8MB. Free memory was 88.1MB in the beginning and 76.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 14:29:38,997 INFO L158 Benchmark]: Witness Printer took 7.21ms. Allocated memory is still 125.8MB. Free memory was 76.0MB in the beginning and 75.5MB in the end (delta: 502.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:29:39,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 125.8MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.41ms. Allocated memory is still 125.8MB. Free memory was 81.7MB in the beginning and 100.7MB in the end (delta: -18.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.42ms. Allocated memory is still 125.8MB. Free memory was 100.7MB in the beginning and 99.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.00ms. Allocated memory is still 125.8MB. Free memory was 99.1MB in the beginning and 98.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 417.61ms. Allocated memory is still 125.8MB. Free memory was 98.1MB in the beginning and 88.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 377.71ms. Allocated memory is still 125.8MB. Free memory was 88.1MB in the beginning and 76.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 7.21ms. Allocated memory is still 125.8MB. Free memory was 76.0MB in the beginning and 75.5MB in the end (delta: 502.3kB). 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: 4]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryLONGDOUBLEComparisonOperation at line 12, overapproximation of someBinaryArithmeticDOUBLEoperation at line 8. Possible FailurePath: [L8] long double x = 1.0/7.0; [L9] long long res = 0; [L11] int i = 1; VAL [i=1, res=0] [L12] COND FALSE !(x != 0) [L19] CALL __VERIFIER_assert(res == 67050) [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 4 NumberOfCodeBlocks, 4 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 [2021-11-19 14:29:39,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/digits_while.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs --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 4eb7ec87e4b26eecb67fe680444df008acb1d5ac2a26461a17b628d29f2e5ff2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:29:41,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:29:41,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:29:41,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:29:41,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:29:41,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:29:41,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:29:41,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:29:41,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:29:41,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:29:41,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:29:41,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:29:41,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:29:41,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:29:41,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:29:41,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:29:41,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:29:41,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:29:41,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:29:41,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:29:41,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:29:41,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:29:41,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:29:41,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:29:41,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:29:41,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:29:41,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:29:41,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:29:41,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:29:41,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:29:41,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:29:41,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:29:41,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:29:41,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:29:41,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:29:41,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:29:41,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:29:41,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:29:41,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:29:41,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:29:41,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:29:41,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:29:42,009 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:29:42,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:29:42,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:29:42,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:29:42,012 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:29:42,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:29:42,012 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:29:42,013 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:29:42,013 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:29:42,013 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:29:42,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:29:42,016 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:29:42,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:29:42,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:29:42,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:29:42,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:29:42,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:29:42,018 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:29:42,018 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:29:42,018 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:29:42,018 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:29:42,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:29:42,019 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:29:42,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:29:42,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:29:42,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:29:42,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:29:42,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:29:42,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:29:42,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:29:42,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:29:42,021 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:29:42,022 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:29:42,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:29:42,023 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:29:42,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:29:42,023 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_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eb7ec87e4b26eecb67fe680444df008acb1d5ac2a26461a17b628d29f2e5ff2 [2021-11-19 14:29:42,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:29:42,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:29:42,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:29:42,455 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:29:42,456 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:29:42,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/floats-esbmc-regression/digits_while.c [2021-11-19 14:29:42,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/data/31a2a9917/79fdeb61f24b4c42a95ef605935834b6/FLAG4bef26905 [2021-11-19 14:29:43,158 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:29:43,159 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/sv-benchmarks/c/floats-esbmc-regression/digits_while.c [2021-11-19 14:29:43,181 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/data/31a2a9917/79fdeb61f24b4c42a95ef605935834b6/FLAG4bef26905 [2021-11-19 14:29:43,523 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/data/31a2a9917/79fdeb61f24b4c42a95ef605935834b6 [2021-11-19 14:29:43,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:29:43,529 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:29:43,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:29:43,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:29:43,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:29:43,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:29:43" (1/1) ... [2021-11-19 14:29:43,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13394f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43, skipping insertion in model container [2021-11-19 14:29:43,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:29:43" (1/1) ... [2021-11-19 14:29:43,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:29:43,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:29:43,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/sv-benchmarks/c/floats-esbmc-regression/digits_while.c[317,330] [2021-11-19 14:29:43,782 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:29:43,798 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:29:43,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/sv-benchmarks/c/floats-esbmc-regression/digits_while.c[317,330] [2021-11-19 14:29:43,818 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:29:43,835 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:29:43,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43 WrapperNode [2021-11-19 14:29:43,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:29:43,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:29:43,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:29:43,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:29:43,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43" (1/1) ... [2021-11-19 14:29:43,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43" (1/1) ... [2021-11-19 14:29:43,909 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2021-11-19 14:29:43,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:29:43,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:29:43,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:29:43,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:29:43,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43" (1/1) ... [2021-11-19 14:29:43,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43" (1/1) ... [2021-11-19 14:29:43,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43" (1/1) ... [2021-11-19 14:29:43,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43" (1/1) ... [2021-11-19 14:29:43,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43" (1/1) ... [2021-11-19 14:29:43,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43" (1/1) ... [2021-11-19 14:29:43,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43" (1/1) ... [2021-11-19 14:29:43,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:29:43,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:29:43,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:29:43,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:29:43,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43" (1/1) ... [2021-11-19 14:29:43,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:29:43,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:29:44,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:29:44,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:29:44,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:29:44,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:29:44,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:29:44,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:29:44,162 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:29:44,164 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:29:46,392 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:29:46,399 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:29:46,399 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:29:46,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:29:46 BoogieIcfgContainer [2021-11-19 14:29:46,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:29:46,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:29:46,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:29:46,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:29:46,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:29:43" (1/3) ... [2021-11-19 14:29:46,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f22ac7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:29:46, skipping insertion in model container [2021-11-19 14:29:46,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:29:43" (2/3) ... [2021-11-19 14:29:46,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f22ac7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:29:46, skipping insertion in model container [2021-11-19 14:29:46,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:29:46" (3/3) ... [2021-11-19 14:29:46,411 INFO L111 eAbstractionObserver]: Analyzing ICFG digits_while.c [2021-11-19 14:29:46,417 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:29:46,417 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:29:46,498 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:29:46,504 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:29:46,504 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:29:46,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2021-11-19 14:29:46,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 14:29:46,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:29:46,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 14:29:46,525 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:29:46,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:29:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2021-11-19 14:29:46,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:29:46,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187243681] [2021-11-19 14:29:46,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:46,552 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:29:46,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:29:46,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:29:46,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:29:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:46,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:29:46,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:46,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:29:46,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:46,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:29:46,917 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:29:46,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187243681] [2021-11-19 14:29:46,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187243681] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:29:46,918 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:29:46,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:29:46,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517955436] [2021-11-19 14:29:46,920 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:29:46,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:29:46,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:29:46,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:29:46,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:29:46,953 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:29:49,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:29:49,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:29:49,256 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2021-11-19 14:29:49,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:29:49,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 14:29:49,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:29:49,268 INFO L225 Difference]: With dead ends: 20 [2021-11-19 14:29:49,269 INFO L226 Difference]: Without dead ends: 8 [2021-11-19 14:29:49,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:29:49,276 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:29:49,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:29:49,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-19 14:29:49,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-19 14:29:49,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:29:49,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-19 14:29:49,314 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2021-11-19 14:29:49,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:29:49,315 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-19 14:29:49,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:29:49,315 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-19 14:29:49,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 14:29:49,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:29:49,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:29:49,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:49,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:29:49,539 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:29:49,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:29:49,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1810510480, now seen corresponding path program 1 times [2021-11-19 14:29:49,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:29:49,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341119426] [2021-11-19 14:29:49,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:49,542 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:29:49,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:29:49,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:29:49,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:29:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:50,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:29:50,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:51,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:29:51,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:58,136 WARN L838 $PredicateComparison]: unable to prove that (not (fp.eq (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 15 113) c_currentRoundingMode (_ bv10 32))) ((_ to_fp 15 113) c_currentRoundingMode (bvmul ((_ fp.to_sbv 32) roundTowardZero |c_ULTIMATE.start_main_~x~0#1|) (_ bv10 32)))) ((_ to_fp 15 113) c_currentRoundingMode (_ bv0 32)))) is different from false [2021-11-19 14:30:00,180 WARN L860 $PredicateComparison]: unable to prove that (not (fp.eq (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 15 113) c_currentRoundingMode (_ bv10 32))) ((_ to_fp 15 113) c_currentRoundingMode (bvmul ((_ fp.to_sbv 32) roundTowardZero |c_ULTIMATE.start_main_~x~0#1|) (_ bv10 32)))) ((_ to_fp 15 113) c_currentRoundingMode (_ bv0 32)))) is different from true [2021-11-19 14:30:00,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-19 14:30:00,444 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:30:00,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341119426] [2021-11-19 14:30:00,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341119426] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:30:00,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1982879852] [2021-11-19 14:30:00,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:00,445 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:30:00,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:30:00,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:30:00,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-19 14:30:00,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 1 [2021-11-19 14:30:00,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:00,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:30:00,739 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: FP term ((_ to_fp 15 113) currentRoundingMode_0 termITE_1) with type whose size is 15/113 is not supported, only Float32 (8/24) or Float64 (11/53) types are supported in default mode. Try the experimental solver via --fp-exp. Note: There are known issues with the experimental solver, use at your own risk. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: FP term ((_ to_fp 15 113) currentRoundingMode_0 termITE_1) with type whose size is 15/113 is not supported, only Float32 (8/24) or Float64 (11/53) types are supported in default mode. Try the experimental solver via --fp-exp. Note: There are known issues with the experimental solver, use at your own risk. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:237) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:260) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:313) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 32 more [2021-11-19 14:30:00,742 INFO L158 Benchmark]: Toolchain (without parser) took 17213.53ms. Allocated memory is still 65.0MB. Free memory was 49.0MB in the beginning and 37.8MB in the end (delta: 11.2MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2021-11-19 14:30:00,743 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 46.1MB. Free memory was 27.5MB in the beginning and 27.4MB in the end (delta: 32.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:30:00,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.75ms. Allocated memory is still 65.0MB. Free memory was 48.8MB in the beginning and 38.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:30:00,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.05ms. Allocated memory is still 65.0MB. Free memory was 38.6MB in the beginning and 47.9MB in the end (delta: -9.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:30:00,745 INFO L158 Benchmark]: Boogie Preprocessor took 58.41ms. Allocated memory is still 65.0MB. Free memory was 47.9MB in the beginning and 46.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:30:00,746 INFO L158 Benchmark]: RCFGBuilder took 2430.67ms. Allocated memory is still 65.0MB. Free memory was 46.6MB in the beginning and 37.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:30:00,747 INFO L158 Benchmark]: TraceAbstraction took 14338.14ms. Allocated memory is still 65.0MB. Free memory was 37.4MB in the beginning and 37.8MB in the end (delta: -373.7kB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2021-11-19 14:30:00,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 46.1MB. Free memory was 27.5MB in the beginning and 27.4MB in the end (delta: 32.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.75ms. Allocated memory is still 65.0MB. Free memory was 48.8MB in the beginning and 38.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.05ms. Allocated memory is still 65.0MB. Free memory was 38.6MB in the beginning and 47.9MB in the end (delta: -9.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.41ms. Allocated memory is still 65.0MB. Free memory was 47.9MB in the beginning and 46.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2430.67ms. Allocated memory is still 65.0MB. Free memory was 46.6MB in the beginning and 37.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 14338.14ms. Allocated memory is still 65.0MB. Free memory was 37.4MB in the beginning and 37.8MB in the end (delta: -373.7kB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: FP term ((_ to_fp 15 113) currentRoundingMode_0 termITE_1) with type whose size is 15/113 is not supported, only Float32 (8/24) or Float64 (11/53) types are supported in default mode. Try the experimental solver via --fp-exp. Note: There are known issues with the experimental solver, use at your own risk. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: FP term ((_ to_fp 15 113) currentRoundingMode_0 termITE_1) with type whose size is 15/113 is not supported, only Float32 (8/24) or Float64 (11/53) types are supported in default mode. Try the experimental solver via --fp-exp. Note: There are known issues with the experimental solver, use at your own risk.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-19 14:30:00,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60bbb30f-2566-4bfb-91ad-a4f74c4407c8/bin/utaipan-UbGMyvGFUs/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: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: FP term ((_ to_fp 15 113) currentRoundingMode_0 termITE_1) with type whose size is 15/113 is not supported, only Float32 (8/24) or Float64 (11/53) types are supported in default mode. Try the experimental solver via --fp-exp. Note: There are known issues with the experimental solver, use at your own risk.