./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF --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 a9825b79dc05674941f0d6760d5ee353656990fb98a94517f1752c6b08ae8db0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:35:09,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:35:09,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:35:09,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:35:09,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:35:09,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:35:09,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:35:09,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:35:09,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:35:09,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:35:09,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:35:09,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:35:09,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:35:09,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:35:09,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:35:09,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:35:09,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:35:09,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:35:09,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:35:09,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:35:09,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:35:09,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:35:09,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:35:09,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:35:09,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:35:09,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:35:09,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:35:09,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:35:09,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:35:09,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:35:09,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:35:09,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:35:09,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:35:09,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:35:09,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:35:09,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:35:09,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:35:09,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:35:09,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:35:09,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:35:09,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:35:09,330 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:35:09,377 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:35:09,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:35:09,380 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:35:09,380 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:35:09,380 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:35:09,380 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:35:09,381 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:35:09,381 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:35:09,387 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:35:09,387 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:35:09,388 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:35:09,389 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:35:09,389 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:35:09,389 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:35:09,389 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:35:09,390 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:35:09,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:35:09,391 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:35:09,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:35:09,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:35:09,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:35:09,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:35:09,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:35:09,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:35:09,392 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:35:09,392 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:35:09,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:35:09,393 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:35:09,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:35:09,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:35:09,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:35:09,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:35:09,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:35:09,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:35:09,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:35:09,396 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:35:09,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:35:09,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:35:09,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:35:09,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:35:09,397 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_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9825b79dc05674941f0d6760d5ee353656990fb98a94517f1752c6b08ae8db0 [2021-11-13 01:35:09,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:35:09,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:35:09,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:35:09,695 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:35:09,696 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:35:09,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i [2021-11-13 01:35:09,755 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/data/ad37d3c11/bc84d5e762f64bc992c453428a9c7a11/FLAG7da0ce337 [2021-11-13 01:35:10,172 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:35:10,173 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i [2021-11-13 01:35:10,188 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/data/ad37d3c11/bc84d5e762f64bc992c453428a9c7a11/FLAG7da0ce337 [2021-11-13 01:35:10,570 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/data/ad37d3c11/bc84d5e762f64bc992c453428a9c7a11 [2021-11-13 01:35:10,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:35:10,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:35:10,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:35:10,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:35:10,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:35:10,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:35:10" (1/1) ... [2021-11-13 01:35:10,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236c7d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10, skipping insertion in model container [2021-11-13 01:35:10,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:35:10" (1/1) ... [2021-11-13 01:35:10,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:35:10,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:35:10,785 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_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[1226,1239] [2021-11-13 01:35:10,809 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_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[2820,2833] [2021-11-13 01:35:10,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:35:10,819 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:35:10,832 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_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[1226,1239] [2021-11-13 01:35:10,844 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_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[2820,2833] [2021-11-13 01:35:10,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:35:10,858 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:35:10,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10 WrapperNode [2021-11-13 01:35:10,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:35:10,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:35:10,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:35:10,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:35:10,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10" (1/1) ... [2021-11-13 01:35:10,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10" (1/1) ... [2021-11-13 01:35:10,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:35:10,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:35:10,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:35:10,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:35:10,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10" (1/1) ... [2021-11-13 01:35:10,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10" (1/1) ... [2021-11-13 01:35:10,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10" (1/1) ... [2021-11-13 01:35:10,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10" (1/1) ... [2021-11-13 01:35:10,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10" (1/1) ... [2021-11-13 01:35:10,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10" (1/1) ... [2021-11-13 01:35:10,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10" (1/1) ... [2021-11-13 01:35:10,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:35:10,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:35:10,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:35:10,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:35:10,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10" (1/1) ... [2021-11-13 01:35:10,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:35:10,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:35:10,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:35:10,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:35:11,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:35:11,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:35:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:35:11,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:35:11,266 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:35:11,266 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:35:11,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:35:11 BoogieIcfgContainer [2021-11-13 01:35:11,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:35:11,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:35:11,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:35:11,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:35:11,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:35:10" (1/3) ... [2021-11-13 01:35:11,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bf4e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:35:11, skipping insertion in model container [2021-11-13 01:35:11,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:10" (2/3) ... [2021-11-13 01:35:11,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bf4e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:35:11, skipping insertion in model container [2021-11-13 01:35:11,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:35:11" (3/3) ... [2021-11-13 01:35:11,276 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_6.i [2021-11-13 01:35:11,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:35:11,282 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 01:35:11,328 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:35:11,335 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 [2021-11-13 01:35:11,335 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 01:35:11,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 14 states have internal predecessors, (19), 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) [2021-11-13 01:35:11,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 01:35:11,354 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:11,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 01:35:11,355 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:35:11,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:11,360 INFO L85 PathProgramCache]: Analyzing trace with hash 3484809, now seen corresponding path program 1 times [2021-11-13 01:35:11,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:35:11,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813034829] [2021-11-13 01:35:11,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:11,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:35:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:35:11,550 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 01:35:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:35:11,625 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-13 01:35:11,628 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 01:35:11,629 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-13 01:35:11,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-13 01:35:11,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:35:11,641 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-13 01:35:11,647 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:35:11,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:35:11 BoogieIcfgContainer [2021-11-13 01:35:11,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:35:11,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:35:11,680 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:35:11,681 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:35:11,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:35:11" (3/4) ... [2021-11-13 01:35:11,685 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 01:35:11,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:35:11,687 INFO L158 Benchmark]: Toolchain (without parser) took 1112.23ms. Allocated memory is still 121.6MB. Free memory was 82.7MB in the beginning and 63.9MB in the end (delta: 18.8MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-11-13 01:35:11,687 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:35:11,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.41ms. Allocated memory is still 121.6MB. Free memory was 82.4MB in the beginning and 94.1MB in the end (delta: -11.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 01:35:11,690 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.83ms. Allocated memory is still 121.6MB. Free memory was 94.1MB in the beginning and 92.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:35:11,692 INFO L158 Benchmark]: Boogie Preprocessor took 26.52ms. Allocated memory is still 121.6MB. Free memory was 92.1MB in the beginning and 91.1MB in the end (delta: 991.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:35:11,697 INFO L158 Benchmark]: RCFGBuilder took 342.04ms. Allocated memory is still 121.6MB. Free memory was 91.1MB in the beginning and 78.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 01:35:11,698 INFO L158 Benchmark]: TraceAbstraction took 404.71ms. Allocated memory is still 121.6MB. Free memory was 77.4MB in the beginning and 63.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-13 01:35:11,699 INFO L158 Benchmark]: Witness Printer took 5.27ms. Allocated memory is still 121.6MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:35:11,707 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.41ms. Allocated memory is still 121.6MB. Free memory was 82.4MB in the beginning and 94.1MB in the end (delta: -11.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.83ms. Allocated memory is still 121.6MB. Free memory was 94.1MB in the beginning and 92.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.52ms. Allocated memory is still 121.6MB. Free memory was 92.1MB in the beginning and 91.1MB in the end (delta: 991.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 342.04ms. Allocated memory is still 121.6MB. Free memory was 91.1MB in the beginning and 78.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 404.71ms. Allocated memory is still 121.6MB. Free memory was 77.4MB in the beginning and 63.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 5.27ms. Allocated memory is still 121.6MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 102]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 80. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=49] [L102] reach_error() VAL [IN=49] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 0.1s 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 [2021-11-13 01:35:11,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/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_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF --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 a9825b79dc05674941f0d6760d5ee353656990fb98a94517f1752c6b08ae8db0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:35:13,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:35:13,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:35:14,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:35:14,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:35:14,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:35:14,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:35:14,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:35:14,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:35:14,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:35:14,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:35:14,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:35:14,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:35:14,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:35:14,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:35:14,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:35:14,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:35:14,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:35:14,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:35:14,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:35:14,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:35:14,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:35:14,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:35:14,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:35:14,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:35:14,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:35:14,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:35:14,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:35:14,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:35:14,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:35:14,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:35:14,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:35:14,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:35:14,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:35:14,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:35:14,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:35:14,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:35:14,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:35:14,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:35:14,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:35:14,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:35:14,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 01:35:14,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:35:14,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:35:14,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:35:14,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:35:14,171 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:35:14,171 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:35:14,171 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:35:14,171 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:35:14,172 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:35:14,172 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:35:14,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:35:14,175 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:35:14,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:35:14,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:35:14,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:35:14,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:35:14,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:35:14,176 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:35:14,176 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:35:14,176 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:35:14,176 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:35:14,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:35:14,177 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:35:14,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:35:14,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:35:14,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:35:14,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:35:14,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:35:14,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:35:14,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:35:14,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:35:14,178 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:35:14,179 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:35:14,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:35:14,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:35:14,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:35:14,180 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_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9825b79dc05674941f0d6760d5ee353656990fb98a94517f1752c6b08ae8db0 [2021-11-13 01:35:14,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:35:14,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:35:14,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:35:14,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:35:14,566 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:35:14,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i [2021-11-13 01:35:14,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/data/e5af350bc/5cdc332d2c91453eab883637d2413c77/FLAGbe019c8df [2021-11-13 01:35:15,119 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:35:15,120 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i [2021-11-13 01:35:15,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/data/e5af350bc/5cdc332d2c91453eab883637d2413c77/FLAGbe019c8df [2021-11-13 01:35:15,532 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/data/e5af350bc/5cdc332d2c91453eab883637d2413c77 [2021-11-13 01:35:15,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:35:15,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:35:15,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:35:15,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:35:15,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:35:15,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:35:15" (1/1) ... [2021-11-13 01:35:15,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@644da4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15, skipping insertion in model container [2021-11-13 01:35:15,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:35:15" (1/1) ... [2021-11-13 01:35:15,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:35:15,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:35:15,751 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_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[1226,1239] [2021-11-13 01:35:15,776 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_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[2820,2833] [2021-11-13 01:35:15,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:35:15,801 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:35:15,839 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_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[1226,1239] [2021-11-13 01:35:15,872 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_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[2820,2833] [2021-11-13 01:35:15,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:35:15,899 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:35:15,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15 WrapperNode [2021-11-13 01:35:15,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:35:15,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:35:15,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:35:15,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:35:15,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15" (1/1) ... [2021-11-13 01:35:15,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15" (1/1) ... [2021-11-13 01:35:15,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:35:15,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:35:15,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:35:15,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:35:15,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15" (1/1) ... [2021-11-13 01:35:15,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15" (1/1) ... [2021-11-13 01:35:15,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15" (1/1) ... [2021-11-13 01:35:15,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15" (1/1) ... [2021-11-13 01:35:16,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15" (1/1) ... [2021-11-13 01:35:16,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15" (1/1) ... [2021-11-13 01:35:16,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15" (1/1) ... [2021-11-13 01:35:16,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:35:16,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:35:16,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:35:16,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:35:16,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15" (1/1) ... [2021-11-13 01:35:16,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:35:16,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:35:16,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:35:16,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:35:16,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:35:16,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:35:16,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:35:16,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:35:23,019 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:35:23,019 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:35:23,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:35:23 BoogieIcfgContainer [2021-11-13 01:35:23,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:35:23,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:35:23,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:35:23,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:35:23,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:35:15" (1/3) ... [2021-11-13 01:35:23,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ddee67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:35:23, skipping insertion in model container [2021-11-13 01:35:23,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:35:15" (2/3) ... [2021-11-13 01:35:23,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ddee67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:35:23, skipping insertion in model container [2021-11-13 01:35:23,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:35:23" (3/3) ... [2021-11-13 01:35:23,029 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_6.i [2021-11-13 01:35:23,034 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:35:23,034 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 01:35:23,092 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:35:23,098 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 [2021-11-13 01:35:23,099 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 01:35:23,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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) [2021-11-13 01:35:23,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 01:35:23,126 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:23,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:23,128 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:35:23,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:23,138 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2021-11-13 01:35:23,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:23,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985750457] [2021-11-13 01:35:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:23,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:23,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:23,168 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:23,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:35:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:24,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 01:35:24,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:24,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:24,646 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:24,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985750457] [2021-11-13 01:35:24,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985750457] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:24,647 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:24,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 01:35:24,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229235535] [2021-11-13 01:35:24,650 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:24,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:35:24,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:24,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:35:24,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:35:24,684 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:35:24,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:24,699 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2021-11-13 01:35:24,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:35:24,702 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-13 01:35:24,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:24,708 INFO L225 Difference]: With dead ends: 47 [2021-11-13 01:35:24,708 INFO L226 Difference]: Without dead ends: 19 [2021-11-13 01:35:24,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:35:24,715 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.65ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:24,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.65ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 01:35:24,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-13 01:35:24,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-13 01:35:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 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) [2021-11-13 01:35:24,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-13 01:35:24,745 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2021-11-13 01:35:24,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:24,746 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-13 01:35:24,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:35:24,746 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-13 01:35:24,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 01:35:24,747 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:24,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:24,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:24,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:24,957 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:35:24,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:24,958 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2021-11-13 01:35:24,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:24,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35005881] [2021-11-13 01:35:24,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:24,959 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:24,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:24,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:24,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:35:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:35:31,517 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 01:36:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:36:06,892 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-13 01:36:06,893 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 01:36:06,894 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-13 01:36:06,896 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-13 01:36:06,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:07,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:36:07,101 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-13 01:36:07,105 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:36:07,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:36:07 BoogieIcfgContainer [2021-11-13 01:36:07,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:36:07,141 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:36:07,141 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:36:07,141 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:36:07,142 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:35:23" (3/4) ... [2021-11-13 01:36:07,144 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-13 01:36:07,186 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:36:07,186 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:36:07,187 INFO L158 Benchmark]: Toolchain (without parser) took 51648.92ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 45.7MB in the beginning and 47.2MB in the end (delta: -1.5MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2021-11-13 01:36:07,187 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 65.0MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:36:07,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.98ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 48.1MB in the end (delta: -2.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-13 01:36:07,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.11ms. Allocated memory is still 65.0MB. Free memory was 48.1MB in the beginning and 46.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:36:07,189 INFO L158 Benchmark]: Boogie Preprocessor took 48.65ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 44.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:36:07,189 INFO L158 Benchmark]: RCFGBuilder took 7006.70ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 33.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:36:07,190 INFO L158 Benchmark]: TraceAbstraction took 44117.36ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 33.4MB in the beginning and 49.3MB in the end (delta: -15.9MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2021-11-13 01:36:07,190 INFO L158 Benchmark]: Witness Printer took 45.31ms. Allocated memory is still 90.2MB. Free memory was 49.3MB in the beginning and 47.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:36:07,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 65.0MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.98ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 48.1MB in the end (delta: -2.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.11ms. Allocated memory is still 65.0MB. Free memory was 48.1MB in the beginning and 46.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.65ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 44.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 7006.70ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 33.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 44117.36ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 33.4MB in the beginning and 49.3MB in the end (delta: -15.9MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Witness Printer took 45.31ms. Allocated memory is still 90.2MB. Free memory was 49.3MB in the beginning and 47.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.2f && IN < 1.2f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.0615257024765015, \result=-0.8736984133720398, x=-1.0615257024765015] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.0615257024765015, \result=0.49147558212280273, x=-1.0615257024765015] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-1.0615257024765015, x=0.7161788940429688] [L102] reach_error() VAL [IN=-1.0615257024765015, x=0.7161788940429688] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 44.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.00ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.00ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.65ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 7.7s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 37 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-13 01:36:07,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdc243e1-3210-4d75-b867-6ee26c4b9d5c/bin/utaipan-vmNK8stdcF/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE