./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/digits_for.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/digits_for.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI --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 7ed59bd961f948a27b7115afce81fd95dbe6b928 ................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/digits_for.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI --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 7ed59bd961f948a27b7115afce81fd95dbe6b928 ............................................................................................................................................................................................................................................................................................................................ 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. --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:41,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:41,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:41,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:41,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:41,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:41,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:41,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:41,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:41,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:41,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:41,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:41,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:41,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:41,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:41,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:41,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:41,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:41,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:41,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:41,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:41,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:41,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:41,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:41,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:41,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:41,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:41,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:41,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:41,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:41,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:41,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:41,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:41,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:41,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:41,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:41,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:41,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:41,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:41,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:41,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:41,827 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:32:41,869 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:41,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:41,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:41,871 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:41,871 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:41,871 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:41,871 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:41,872 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:41,877 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:41,877 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:41,877 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:41,877 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:41,877 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:41,877 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:41,878 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:41,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:41,878 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:41,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:41,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:41,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:41,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:41,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:41,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:41,880 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:41,880 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:41,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:41,880 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:41,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:41,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:41,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:41,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:41,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:41,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:41,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:41,882 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:41,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:41,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:41,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:41,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:41,883 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_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ed59bd961f948a27b7115afce81fd95dbe6b928 [2021-10-11 02:32:42,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:42,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:42,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:42,153 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:42,154 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:42,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/floats-esbmc-regression/digits_for.c [2021-10-11 02:32:42,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/data/d83c2c4d0/22d2773968dc4e2a8cdac8ec47ad578b/FLAG2229ee933 [2021-10-11 02:32:42,617 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:42,617 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/sv-benchmarks/c/floats-esbmc-regression/digits_for.c [2021-10-11 02:32:42,623 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/data/d83c2c4d0/22d2773968dc4e2a8cdac8ec47ad578b/FLAG2229ee933 [2021-10-11 02:32:43,030 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/data/d83c2c4d0/22d2773968dc4e2a8cdac8ec47ad578b [2021-10-11 02:32:43,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:43,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:43,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:43,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:43,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:43,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5136aa99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43, skipping insertion in model container [2021-10-11 02:32:43,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:43,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:43,224 WARN L226 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_06efda60-c860-4a72-a5d9-26d9282c8877/sv-benchmarks/c/floats-esbmc-regression/digits_for.c[315,328] [2021-10-11 02:32:43,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:43,245 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:43,257 WARN L226 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_06efda60-c860-4a72-a5d9-26d9282c8877/sv-benchmarks/c/floats-esbmc-regression/digits_for.c[315,328] [2021-10-11 02:32:43,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:43,274 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:43,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43 WrapperNode [2021-10-11 02:32:43,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:43,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:43,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:43,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:43,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:43,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:43,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:43,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:43,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:43,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:43,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:43,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:43,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:32:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:43,630 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:43,631 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:32:43,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:43 BoogieIcfgContainer [2021-10-11 02:32:43,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:43,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:43,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:43,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:43,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:43" (1/3) ... [2021-10-11 02:32:43,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e90e883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:43, skipping insertion in model container [2021-10-11 02:32:43,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43" (2/3) ... [2021-10-11 02:32:43,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e90e883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:43, skipping insertion in model container [2021-10-11 02:32:43,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:43" (3/3) ... [2021-10-11 02:32:43,641 INFO L111 eAbstractionObserver]: Analyzing ICFG digits_for.c [2021-10-11 02:32:43,655 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:43,658 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:32:43,669 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:32:43,692 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:43,692 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:43,692 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:43,693 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:43,693 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:43,693 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:43,693 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:43,693 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:43,705 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2021-10-11 02:32:43,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:32:43,710 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:43,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:32:43,711 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:43,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:43,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1882248, now seen corresponding path program 1 times [2021-10-11 02:32:43,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:43,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832226342] [2021-10-11 02:32:43,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:43,829 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:43,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:43,873 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:32:43,874 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:32:43,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:32:43,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:43 BoogieIcfgContainer [2021-10-11 02:32:43,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:43,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:43,895 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:43,895 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:43,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:43" (3/4) ... [2021-10-11 02:32:43,899 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:32:43,899 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:43,901 INFO L168 Benchmark]: Toolchain (without parser) took 865.64 ms. Allocated memory is still 121.6 MB. Free memory was 88.6 MB in the beginning and 68.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:43,902 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 77.6 MB. Free memory was 52.1 MB in the beginning and 52.1 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:43,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.36 ms. Allocated memory is still 121.6 MB. Free memory was 88.3 MB in the beginning and 98.5 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:43,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.18 ms. Allocated memory is still 121.6 MB. Free memory was 98.5 MB in the beginning and 97.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:43,905 INFO L168 Benchmark]: Boogie Preprocessor took 20.70 ms. Allocated memory is still 121.6 MB. Free memory was 97.1 MB in the beginning and 96.3 MB in the end (delta: 760.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:43,906 INFO L168 Benchmark]: RCFGBuilder took 304.23 ms. Allocated memory is still 121.6 MB. Free memory was 95.6 MB in the beginning and 81.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:43,907 INFO L168 Benchmark]: TraceAbstraction took 258.86 ms. Allocated memory is still 121.6 MB. Free memory was 80.3 MB in the beginning and 69.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:43,907 INFO L168 Benchmark]: Witness Printer took 4.68 ms. Allocated memory is still 121.6 MB. Free memory was 69.0 MB in the beginning and 68.4 MB in the end (delta: 656.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:43,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 77.6 MB. Free memory was 52.1 MB in the beginning and 52.1 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 238.36 ms. Allocated memory is still 121.6 MB. Free memory was 88.3 MB in the beginning and 98.5 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.18 ms. Allocated memory is still 121.6 MB. Free memory was 98.5 MB in the beginning and 97.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.70 ms. Allocated memory is still 121.6 MB. Free memory was 97.1 MB in the beginning and 96.3 MB in the end (delta: 760.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 304.23 ms. Allocated memory is still 121.6 MB. Free memory was 95.6 MB in the beginning and 81.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 258.86 ms. Allocated memory is still 121.6 MB. Free memory was 80.3 MB in the beginning and 69.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.68 ms. Allocated memory is still 121.6 MB. Free memory was 69.0 MB in the beginning and 68.4 MB in the end (delta: 656.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 11, 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; [L11] 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. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:46,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:46,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:46,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:46,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:46,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:46,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:46,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:46,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:46,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:46,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:46,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:46,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:46,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:46,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:46,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:46,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:46,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:46,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:46,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:46,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:46,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:46,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:46,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:46,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:46,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:46,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:46,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:46,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:46,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:46,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:46,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:46,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:46,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:46,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:46,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:46,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:46,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:46,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:46,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:46,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:46,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:32:46,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:46,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:46,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:46,449 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:46,449 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:46,450 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:46,450 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:46,450 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:46,450 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:46,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:46,453 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:46,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:46,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:46,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:46,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:46,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:46,454 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:46,454 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:32:46,455 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:32:46,455 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:46,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:46,455 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:46,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:46,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:46,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:32:46,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:46,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:46,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:46,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:46,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:46,457 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:32:46,458 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:32:46,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:46,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:46,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:46,459 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_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ed59bd961f948a27b7115afce81fd95dbe6b928 [2021-10-11 02:32:46,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:46,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:46,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:46,879 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:46,883 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:46,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/floats-esbmc-regression/digits_for.c [2021-10-11 02:32:46,949 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/data/e05440d0a/ea461b63a86a498f8884d60eec8b2941/FLAG8fbc7856f [2021-10-11 02:32:47,489 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:47,490 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/sv-benchmarks/c/floats-esbmc-regression/digits_for.c [2021-10-11 02:32:47,496 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/data/e05440d0a/ea461b63a86a498f8884d60eec8b2941/FLAG8fbc7856f [2021-10-11 02:32:47,961 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/data/e05440d0a/ea461b63a86a498f8884d60eec8b2941 [2021-10-11 02:32:47,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:47,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:47,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:47,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:47,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:47,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222e36f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:47, skipping insertion in model container [2021-10-11 02:32:47,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:47" (1/1) ... [2021-10-11 02:32:47,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:47,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:48,125 WARN L226 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_06efda60-c860-4a72-a5d9-26d9282c8877/sv-benchmarks/c/floats-esbmc-regression/digits_for.c[315,328] [2021-10-11 02:32:48,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:48,164 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:48,175 WARN L226 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_06efda60-c860-4a72-a5d9-26d9282c8877/sv-benchmarks/c/floats-esbmc-regression/digits_for.c[315,328] [2021-10-11 02:32:48,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:48,233 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:48,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48 WrapperNode [2021-10-11 02:32:48,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:48,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:48,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:48,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:48,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48" (1/1) ... [2021-10-11 02:32:48,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48" (1/1) ... [2021-10-11 02:32:48,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:48,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:48,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:48,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:48,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48" (1/1) ... [2021-10-11 02:32:48,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48" (1/1) ... [2021-10-11 02:32:48,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48" (1/1) ... [2021-10-11 02:32:48,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48" (1/1) ... [2021-10-11 02:32:48,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48" (1/1) ... [2021-10-11 02:32:48,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48" (1/1) ... [2021-10-11 02:32:48,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48" (1/1) ... [2021-10-11 02:32:48,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:48,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:48,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:48,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:48,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:48,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:48,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:32:48,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:50,726 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:50,726 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:32:50,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:50 BoogieIcfgContainer [2021-10-11 02:32:50,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:50,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:50,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:50,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:50,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:47" (1/3) ... [2021-10-11 02:32:50,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49218210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:50, skipping insertion in model container [2021-10-11 02:32:50,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48" (2/3) ... [2021-10-11 02:32:50,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49218210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:50, skipping insertion in model container [2021-10-11 02:32:50,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:50" (3/3) ... [2021-10-11 02:32:50,736 INFO L111 eAbstractionObserver]: Analyzing ICFG digits_for.c [2021-10-11 02:32:50,747 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:50,750 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:32:50,758 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:32:50,777 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:50,778 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:50,778 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:50,778 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:50,778 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:50,779 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:50,779 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:50,779 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:50,791 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2021-10-11 02:32:50,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:32:50,796 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:50,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:32:50,797 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:50,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:50,802 INFO L82 PathProgramCache]: Analyzing trace with hash 889605037, now seen corresponding path program 1 times [2021-10-11 02:32:50,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:50,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402527583] [2021-10-11 02:32:50,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:50,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:50,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:51,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:51,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:51,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402527583] [2021-10-11 02:32:51,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:51,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:51,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497331811] [2021-10-11 02:32:51,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:51,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:51,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:51,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:51,109 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2021-10-11 02:32:53,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:53,394 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-10-11 02:32:53,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:53,397 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-10-11 02:32:53,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:53,404 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:32:53,404 INFO L226 Difference]: Without dead ends: 9 [2021-10-11 02:32:53,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:53,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-11 02:32:53,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-11 02:32:53,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 02:32:53,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-11 02:32:53,430 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2021-10-11 02:32:53,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:53,430 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-11 02:32:53,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:53,430 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-11 02:32:53,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:32:53,431 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:53,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:53,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:32:53,642 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:53,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:53,643 INFO L82 PathProgramCache]: Analyzing trace with hash 265180975, now seen corresponding path program 1 times [2021-10-11 02:32:53,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:53,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033101804] [2021-10-11 02:32:53,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:54,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:32:54,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:58,332 WARN L197 SmtUtils]: Spent 2.62 s on a formula simplification that was a NOOP. DAG size: 20 [2021-10-11 02:32:58,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:58,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:00,440 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 [2021-10-11 02:33:02,482 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 [2021-10-11 02:33:03,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-10-11 02:33:03,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033101804] [2021-10-11 02:33:03,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1464428352] [2021-10-11 02:33:03,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06efda60-c860-4a72-a5d9-26d9282c8877/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:33:03,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3,4 cvc4 --incremental --print-success --lang smt [2021-10-11 02:33:03,486 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:235) 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:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java: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:1454) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) 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:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) ... 29 more [2021-10-11 02:33:03,494 INFO L168 Benchmark]: Toolchain (without parser) took 15528.69 ms. Allocated memory is still 81.8 MB. Free memory was 62.3 MB in the beginning and 44.1 MB in the end (delta: 18.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:03,495 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 52.4 MB. Free memory is still 33.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:03,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.78 ms. Allocated memory is still 81.8 MB. Free memory was 62.2 MB in the beginning and 66.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:03,496 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.17 ms. Allocated memory is still 81.8 MB. Free memory was 66.0 MB in the beginning and 64.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:03,497 INFO L168 Benchmark]: Boogie Preprocessor took 27.44 ms. Allocated memory is still 81.8 MB. Free memory was 64.7 MB in the beginning and 63.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:03,497 INFO L168 Benchmark]: RCFGBuilder took 2427.27 ms. Allocated memory is still 81.8 MB. Free memory was 63.1 MB in the beginning and 51.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:03,498 INFO L168 Benchmark]: TraceAbstraction took 12759.37 ms. Allocated memory is still 81.8 MB. Free memory was 50.8 MB in the beginning and 44.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:03,501 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 52.4 MB. Free memory is still 33.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.78 ms. Allocated memory is still 81.8 MB. Free memory was 62.2 MB in the beginning and 66.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.17 ms. Allocated memory is still 81.8 MB. Free memory was 66.0 MB in the beginning and 64.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.44 ms. Allocated memory is still 81.8 MB. Free memory was 64.7 MB in the beginning and 63.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2427.27 ms. Allocated memory is still 81.8 MB. Free memory was 63.1 MB in the beginning and 51.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12759.37 ms. Allocated memory is still 81.8 MB. Free memory was 50.8 MB in the beginning and 44.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 10.0 MB. 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:235) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...