./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/digits_while.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 05:42:57,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:42:57,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:42:57,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:42:57,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:42:57,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:42:57,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:42:57,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:42:57,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:42:57,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:42:57,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:42:57,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:42:57,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:42:57,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:42:57,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:42:57,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:42:57,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:42:57,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:42:57,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:42:57,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:42:57,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:42:57,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:42:57,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:42:57,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:42:57,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:42:57,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:42:57,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:42:57,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:42:57,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:42:57,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:42:57,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:42:57,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:42:57,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:42:57,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:42:57,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:42:57,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:42:57,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:42:57,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:42:57,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:42:57,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:42:57,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:42:57,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:42:57,232 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:42:57,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:42:57,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:42:57,234 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:42:57,235 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:42:57,235 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:42:57,235 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:42:57,235 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:42:57,241 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:42:57,242 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:42:57,243 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:42:57,243 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:42:57,244 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:42:57,244 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:42:57,244 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:42:57,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:42:57,245 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:42:57,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:42:57,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:42:57,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:42:57,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:42:57,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:42:57,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:42:57,247 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:42:57,247 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:42:57,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:42:57,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:42:57,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:42:57,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:42:57,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:42:57,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:42:57,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:42:57,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:42:57,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:42:57,252 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:42:57,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:42:57,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:42:57,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:42:57,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:42:57,253 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_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eb7ec87e4b26eecb67fe680444df008acb1d5ac2a26461a17b628d29f2e5ff2 [2021-11-03 05:42:57,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:42:57,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:42:57,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:42:57,546 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:42:57,546 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:42:57,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/floats-esbmc-regression/digits_while.c [2021-11-03 05:42:57,612 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/data/cebe6f788/fd231f3d2a8f45f09ca5d8f8118303a3/FLAGada282ba9 [2021-11-03 05:42:58,073 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:42:58,074 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/sv-benchmarks/c/floats-esbmc-regression/digits_while.c [2021-11-03 05:42:58,079 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/data/cebe6f788/fd231f3d2a8f45f09ca5d8f8118303a3/FLAGada282ba9 [2021-11-03 05:42:58,471 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/data/cebe6f788/fd231f3d2a8f45f09ca5d8f8118303a3 [2021-11-03 05:42:58,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:42:58,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:42:58,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:42:58,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:42:58,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:42:58,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:58" (1/1) ... [2021-11-03 05:42:58,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8d81dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58, skipping insertion in model container [2021-11-03 05:42:58,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:58" (1/1) ... [2021-11-03 05:42:58,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:42:58,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:42:58,665 WARN L228 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_64828868-aa64-4f51-a271-95f4bf3fd8a5/sv-benchmarks/c/floats-esbmc-regression/digits_while.c[317,330] [2021-11-03 05:42:58,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:42:58,695 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:42:58,711 WARN L228 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_64828868-aa64-4f51-a271-95f4bf3fd8a5/sv-benchmarks/c/floats-esbmc-regression/digits_while.c[317,330] [2021-11-03 05:42:58,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:42:58,734 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:42:58,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58 WrapperNode [2021-11-03 05:42:58,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:42:58,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:42:58,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:42:58,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:42:58,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58" (1/1) ... [2021-11-03 05:42:58,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58" (1/1) ... [2021-11-03 05:42:58,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:42:58,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:42:58,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:42:58,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:42:58,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58" (1/1) ... [2021-11-03 05:42:58,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58" (1/1) ... [2021-11-03 05:42:58,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58" (1/1) ... [2021-11-03 05:42:58,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58" (1/1) ... [2021-11-03 05:42:58,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58" (1/1) ... [2021-11-03 05:42:58,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58" (1/1) ... [2021-11-03 05:42:58,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58" (1/1) ... [2021-11-03 05:42:58,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:42:58,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:42:58,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:42:58,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:42:58,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58" (1/1) ... [2021-11-03 05:42:58,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:42:58,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:42:58,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:42:58,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:42:58,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:42:58,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:42:58,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 05:42:58,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:42:59,100 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:42:59,100 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-03 05:42:59,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:59 BoogieIcfgContainer [2021-11-03 05:42:59,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:42:59,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:42:59,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:42:59,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:42:59,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:42:58" (1/3) ... [2021-11-03 05:42:59,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b63adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:42:59, skipping insertion in model container [2021-11-03 05:42:59,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:58" (2/3) ... [2021-11-03 05:42:59,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b63adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:42:59, skipping insertion in model container [2021-11-03 05:42:59,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:59" (3/3) ... [2021-11-03 05:42:59,118 INFO L111 eAbstractionObserver]: Analyzing ICFG digits_while.c [2021-11-03 05:42:59,124 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:42:59,133 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:42:59,196 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:42:59,201 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 [2021-11-03 05:42:59,202 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 05:42:59,215 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) [2021-11-03 05:42:59,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 05:42:59,219 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:59,220 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 05:42:59,220 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:42:59,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:59,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1850503, now seen corresponding path program 1 times [2021-11-03 05:42:59,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:42:59,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260651281] [2021-11-03 05:42:59,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:59,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:42:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 05:42:59,330 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 05:42:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 05:42:59,365 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 05:42:59,367 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 05:42:59,368 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:42:59,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 05:42:59,374 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-03 05:42:59,377 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 05:42:59,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:42:59 BoogieIcfgContainer [2021-11-03 05:42:59,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 05:42:59,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 05:42:59,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 05:42:59,408 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 05:42:59,408 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:59" (3/4) ... [2021-11-03 05:42:59,411 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 05:42:59,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 05:42:59,414 INFO L168 Benchmark]: Toolchain (without parser) took 937.36 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.9 MB in the beginning and 86.4 MB in the end (delta: -33.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:42:59,414 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory is still 69.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:42:59,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.54 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.7 MB in the beginning and 85.3 MB in the end (delta: -32.6 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:59,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.08 ms. Allocated memory is still 109.1 MB. Free memory was 85.3 MB in the beginning and 83.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:59,416 INFO L168 Benchmark]: Boogie Preprocessor took 21.59 ms. Allocated memory is still 109.1 MB. Free memory was 83.7 MB in the beginning and 82.8 MB in the end (delta: 968.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:42:59,417 INFO L168 Benchmark]: RCFGBuilder took 312.38 ms. Allocated memory is still 109.1 MB. Free memory was 82.5 MB in the beginning and 72.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:59,418 INFO L168 Benchmark]: TraceAbstraction took 286.80 ms. Allocated memory is still 109.1 MB. Free memory was 72.0 MB in the beginning and 59.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:59,418 INFO L168 Benchmark]: Witness Printer took 4.09 ms. Allocated memory is still 109.1 MB. Free memory was 86.5 MB in the beginning and 86.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:42:59,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory is still 69.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.54 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.7 MB in the beginning and 85.3 MB in the end (delta: -32.6 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.08 ms. Allocated memory is still 109.1 MB. Free memory was 85.3 MB in the beginning and 83.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.59 ms. Allocated memory is still 109.1 MB. Free memory was 83.7 MB in the beginning and 82.8 MB in the end (delta: 968.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 312.38 ms. Allocated memory is still 109.1 MB. Free memory was 82.5 MB in the beginning and 72.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 286.80 ms. Allocated memory is still 109.1 MB. Free memory was 72.0 MB in the beginning and 59.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.09 ms. Allocated memory is still 109.1 MB. Free memory was 86.5 MB in the beginning and 86.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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; [L12] COND FALSE !(x != 0) [L4] COND TRUE !(cond) [L4] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 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, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, 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 [2021-11-03 05:42:59,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/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_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/digits_while.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 05:43:01,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:43:01,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:43:01,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:43:01,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:43:01,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:43:01,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:43:01,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:43:01,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:43:01,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:43:01,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:43:01,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:43:01,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:43:01,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:43:01,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:43:01,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:43:01,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:43:01,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:43:01,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:43:01,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:43:01,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:43:01,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:43:01,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:43:01,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:43:01,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:43:01,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:43:01,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:43:01,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:43:01,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:43:01,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:43:01,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:43:01,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:43:01,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:43:01,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:43:01,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:43:01,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:43:01,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:43:01,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:43:01,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:43:01,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:43:01,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:43:01,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 05:43:01,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:43:01,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:43:01,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:43:01,854 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:43:01,855 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:43:01,855 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:43:01,855 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:43:01,856 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:43:01,856 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:43:01,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:43:01,857 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:43:01,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:43:01,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:43:01,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:43:01,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:43:01,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:43:01,859 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:43:01,859 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:43:01,859 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:43:01,859 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:43:01,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:43:01,860 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:43:01,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:43:01,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:43:01,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:43:01,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:43:01,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:43:01,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:43:01,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:43:01,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:43:01,868 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:43:01,869 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:43:01,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:43:01,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:43:01,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:43:01,870 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_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eb7ec87e4b26eecb67fe680444df008acb1d5ac2a26461a17b628d29f2e5ff2 [2021-11-03 05:43:02,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:43:02,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:43:02,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:43:02,302 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:43:02,302 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:43:02,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/floats-esbmc-regression/digits_while.c [2021-11-03 05:43:02,393 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/data/935abeb5c/c4e13db805334e6b800a01492cbb4f54/FLAG452404a30 [2021-11-03 05:43:02,831 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:43:02,832 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/sv-benchmarks/c/floats-esbmc-regression/digits_while.c [2021-11-03 05:43:02,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/data/935abeb5c/c4e13db805334e6b800a01492cbb4f54/FLAG452404a30 [2021-11-03 05:43:03,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/data/935abeb5c/c4e13db805334e6b800a01492cbb4f54 [2021-11-03 05:43:03,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:43:03,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:43:03,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:43:03,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:43:03,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:43:03,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:43:03" (1/1) ... [2021-11-03 05:43:03,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e2a1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03, skipping insertion in model container [2021-11-03 05:43:03,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:43:03" (1/1) ... [2021-11-03 05:43:03,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:43:03,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:43:03,361 WARN L228 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_64828868-aa64-4f51-a271-95f4bf3fd8a5/sv-benchmarks/c/floats-esbmc-regression/digits_while.c[317,330] [2021-11-03 05:43:03,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:43:03,401 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:43:03,422 WARN L228 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_64828868-aa64-4f51-a271-95f4bf3fd8a5/sv-benchmarks/c/floats-esbmc-regression/digits_while.c[317,330] [2021-11-03 05:43:03,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:43:03,462 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:43:03,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03 WrapperNode [2021-11-03 05:43:03,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:43:03,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:43:03,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:43:03,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:43:03,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03" (1/1) ... [2021-11-03 05:43:03,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03" (1/1) ... [2021-11-03 05:43:03,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:43:03,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:43:03,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:43:03,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:43:03,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03" (1/1) ... [2021-11-03 05:43:03,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03" (1/1) ... [2021-11-03 05:43:03,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03" (1/1) ... [2021-11-03 05:43:03,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03" (1/1) ... [2021-11-03 05:43:03,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03" (1/1) ... [2021-11-03 05:43:03,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03" (1/1) ... [2021-11-03 05:43:03,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03" (1/1) ... [2021-11-03 05:43:03,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:43:03,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:43:03,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:43:03,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:43:03,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03" (1/1) ... [2021-11-03 05:43:03,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:43:03,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:43:03,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:43:03,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:43:03,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:43:03,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:43:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:43:03,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:43:06,001 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:43:06,002 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-03 05:43:06,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:43:06 BoogieIcfgContainer [2021-11-03 05:43:06,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:43:06,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:43:06,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:43:06,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:43:06,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:43:03" (1/3) ... [2021-11-03 05:43:06,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55bc444d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:43:06, skipping insertion in model container [2021-11-03 05:43:06,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:43:03" (2/3) ... [2021-11-03 05:43:06,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55bc444d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:43:06, skipping insertion in model container [2021-11-03 05:43:06,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:43:06" (3/3) ... [2021-11-03 05:43:06,013 INFO L111 eAbstractionObserver]: Analyzing ICFG digits_while.c [2021-11-03 05:43:06,018 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:43:06,019 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:43:06,067 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:43:06,075 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 [2021-11-03 05:43:06,075 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 05:43:06,089 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) [2021-11-03 05:43:06,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 05:43:06,094 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:43:06,095 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 05:43:06,095 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:43:06,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:43:06,121 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2021-11-03 05:43:06,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:43:06,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908659780] [2021-11-03 05:43:06,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:43:06,134 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:43:06,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:43:06,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:43:06,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:43:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:43:06,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:43:06,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:43:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:06,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:43:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:06,525 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:43:06,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908659780] [2021-11-03 05:43:06,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [908659780] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:43:06,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:43:06,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:43:06,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529113852] [2021-11-03 05:43:06,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:43:06,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:43:06,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:43:06,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:43:06,552 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) [2021-11-03 05:43:08,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:43:08,960 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2021-11-03 05:43:08,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:43:08,962 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 [2021-11-03 05:43:08,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:43:08,969 INFO L225 Difference]: With dead ends: 20 [2021-11-03 05:43:08,969 INFO L226 Difference]: Without dead ends: 8 [2021-11-03 05:43:08,971 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:43:08,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-03 05:43:08,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-03 05:43:08,993 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) [2021-11-03 05:43:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-03 05:43:08,995 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2021-11-03 05:43:08,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:43:08,995 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-03 05:43:08,995 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) [2021-11-03 05:43:08,995 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-03 05:43:08,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 05:43:08,996 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:43:08,996 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:43:09,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 05:43:09,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:43:09,212 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:43:09,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:43:09,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1810510480, now seen corresponding path program 1 times [2021-11-03 05:43:09,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:43:09,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408208391] [2021-11-03 05:43:09,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:43:09,214 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:43:09,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:43:09,215 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:43:09,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:43:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:43:09,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:43:09,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:43:11,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:11,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:43:17,330 WARN L838 $PredicateComparison]: unable to prove that (not (fp.eq (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ 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) (_ bv10 32)))) ((_ to_fp 15 113) c_currentRoundingMode (_ bv0 32)))) is different from false [2021-11-03 05:43:19,377 WARN L860 $PredicateComparison]: unable to prove that (not (fp.eq (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ 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) (_ bv10 32)))) ((_ to_fp 15 113) c_currentRoundingMode (_ bv0 32)))) is different from true [2021-11-03 05:43:19,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-03 05:43:19,614 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:43:19,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408208391] [2021-11-03 05:43:19,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408208391] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:43:19,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [83040955] [2021-11-03 05:43:19,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:43:19,615 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:43:19,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:43:19,622 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:43:19,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-03 05:43:19,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 1 [2021-11-03 05:43:19,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 05:43:20,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:43:20,136 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:609) 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 [2021-11-03 05:43:20,141 INFO L168 Benchmark]: Toolchain (without parser) took 16925.23 ms. Allocated memory was 67.1 MB in the beginning and 94.4 MB in the end (delta: 27.3 MB). Free memory was 46.3 MB in the beginning and 69.5 MB in the end (delta: -23.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:43:20,142 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 67.1 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:43:20,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.76 ms. Allocated memory is still 67.1 MB. Free memory was 46.0 MB in the beginning and 49.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:43:20,143 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.40 ms. Allocated memory is still 67.1 MB. Free memory was 49.2 MB in the beginning and 47.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:43:20,144 INFO L168 Benchmark]: Boogie Preprocessor took 50.66 ms. Allocated memory is still 67.1 MB. Free memory was 47.7 MB in the beginning and 46.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:43:20,144 INFO L168 Benchmark]: RCFGBuilder took 2443.60 ms. Allocated memory is still 67.1 MB. Free memory was 46.5 MB in the beginning and 37.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:43:20,145 INFO L168 Benchmark]: TraceAbstraction took 14133.17 ms. Allocated memory was 67.1 MB in the beginning and 94.4 MB in the end (delta: 27.3 MB). Free memory was 36.6 MB in the beginning and 69.5 MB in the end (delta: -33.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:43:20,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 67.1 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.76 ms. Allocated memory is still 67.1 MB. Free memory was 46.0 MB in the beginning and 49.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.40 ms. Allocated memory is still 67.1 MB. Free memory was 49.2 MB in the beginning and 47.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.66 ms. Allocated memory is still 67.1 MB. Free memory was 47.7 MB in the beginning and 46.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2443.60 ms. Allocated memory is still 67.1 MB. Free memory was 46.5 MB in the beginning and 37.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14133.17 ms. Allocated memory was 67.1 MB in the beginning and 94.4 MB in the end (delta: 27.3 MB). Free memory was 36.6 MB in the beginning and 69.5 MB in the end (delta: -33.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * 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. [2021-11-03 05:43:20,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64828868-aa64-4f51-a271-95f4bf3fd8a5/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: 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.