./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 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9825b79dc05674941f0d6760d5ee353656990fb98a94517f1752c6b08ae8db0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:57:22,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:57:22,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:57:22,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:57:22,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:57:22,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:57:22,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:57:22,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:57:22,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:57:22,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:57:22,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:57:22,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:57:22,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:57:22,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:57:22,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:57:22,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:57:22,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:57:22,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:57:22,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:57:22,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:57:22,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:57:22,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:57:22,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:57:22,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:57:22,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:57:22,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:57:22,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:57:22,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:57:22,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:57:22,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:57:22,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:57:22,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:57:22,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:57:22,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:57:22,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:57:22,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:57:22,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:57:22,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:57:22,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:57:22,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:57:22,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:57:22,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:57:22,644 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:57:22,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:57:22,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:57:22,645 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:57:22,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:57:22,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:57:22,647 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:57:22,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:57:22,648 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:57:22,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:57:22,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:57:22,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:57:22,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:57:22,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:57:22,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:57:22,650 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:57:22,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:57:22,651 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:57:22,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:57:22,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:57:22,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:57:22,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:57:22,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:57:22,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:57:22,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:57:22,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:57:22,653 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:57:22,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:57:22,653 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:57:22,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:57:22,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:57:22,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:57:22,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9825b79dc05674941f0d6760d5ee353656990fb98a94517f1752c6b08ae8db0 [2021-11-23 13:57:22,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:57:22,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:57:22,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:57:22,977 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:57:22,978 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:57:22,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i [2021-11-23 13:57:23,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/data/f55cb040a/d194ec3afe854445b05ef37c41704f35/FLAGfb61172fe [2021-11-23 13:57:23,598 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:57:23,602 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i [2021-11-23 13:57:23,617 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/data/f55cb040a/d194ec3afe854445b05ef37c41704f35/FLAGfb61172fe [2021-11-23 13:57:23,950 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/data/f55cb040a/d194ec3afe854445b05ef37c41704f35 [2021-11-23 13:57:23,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:57:23,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:57:23,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:57:23,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:57:23,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:57:23,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:57:23" (1/1) ... [2021-11-23 13:57:23,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fe85bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:23, skipping insertion in model container [2021-11-23 13:57:23,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:57:23" (1/1) ... [2021-11-23 13:57:23,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:57:23,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:57:24,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[1226,1239] [2021-11-23 13:57:24,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[2820,2833] [2021-11-23 13:57:24,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:57:24,233 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:57:24,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[1226,1239] [2021-11-23 13:57:24,258 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[2820,2833] [2021-11-23 13:57:24,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:57:24,274 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:57:24,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:24 WrapperNode [2021-11-23 13:57:24,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:57:24,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:57:24,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:57:24,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:57:24,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:24" (1/1) ... [2021-11-23 13:57:24,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:24" (1/1) ... [2021-11-23 13:57:24,315 INFO L137 Inliner]: procedures = 27, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 78 [2021-11-23 13:57:24,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:57:24,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:57:24,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:57:24,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:57:24,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:24" (1/1) ... [2021-11-23 13:57:24,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:24" (1/1) ... [2021-11-23 13:57:24,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:24" (1/1) ... [2021-11-23 13:57:24,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:24" (1/1) ... [2021-11-23 13:57:24,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:24" (1/1) ... [2021-11-23 13:57:24,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:24" (1/1) ... [2021-11-23 13:57:24,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:24" (1/1) ... [2021-11-23 13:57:24,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:57:24,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:57:24,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:57:24,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:57:24,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:24" (1/1) ... [2021-11-23 13:57:24,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:57:24,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:24,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:57:24,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:57:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:57:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:57:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:57:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:57:24,497 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:57:24,499 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:57:24,680 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:57:24,687 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:57:24,687 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 13:57:24,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:24 BoogieIcfgContainer [2021-11-23 13:57:24,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:57:24,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:57:24,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:57:24,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:57:24,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:57:23" (1/3) ... [2021-11-23 13:57:24,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644afa26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:24, skipping insertion in model container [2021-11-23 13:57:24,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:24" (2/3) ... [2021-11-23 13:57:24,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644afa26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:24, skipping insertion in model container [2021-11-23 13:57:24,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:24" (3/3) ... [2021-11-23 13:57:24,698 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_6.i [2021-11-23 13:57:24,704 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:57:24,704 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 13:57:24,754 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:57:24,761 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=PETRI_NET, 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 [2021-11-23 13:57:24,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 13:57:24,776 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) [2021-11-23 13:57:24,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:57:24,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:24,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:24,783 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:57:24,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:24,802 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2021-11-23 13:57:24,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:24,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185359070] [2021-11-23 13:57:24,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:24,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:24,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:24,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185359070] [2021-11-23 13:57:24,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185359070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:24,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:24,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:57:25,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793601312] [2021-11-23 13:57:25,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:25,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:57:25,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:25,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:57:25,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:57:25,044 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) [2021-11-23 13:57:25,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:25,065 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2021-11-23 13:57:25,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:57:25,067 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 [2021-11-23 13:57:25,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:25,076 INFO L225 Difference]: With dead ends: 47 [2021-11-23 13:57:25,077 INFO L226 Difference]: Without dead ends: 19 [2021-11-23 13:57:25,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:57:25,087 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:25,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:57:25,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-23 13:57:25,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-23 13:57:25,131 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) [2021-11-23 13:57:25,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-23 13:57:25,134 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2021-11-23 13:57:25,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:25,134 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-23 13:57:25,134 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) [2021-11-23 13:57:25,135 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-23 13:57:25,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:57:25,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:25,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:25,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:57:25,137 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:57:25,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2021-11-23 13:57:25,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:57:25,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121248346] [2021-11-23 13:57:25,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:25,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:57:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:57:25,175 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:57:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:57:25,223 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:57:25,223 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 13:57:25,226 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-23 13:57:25,228 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-23 13:57:25,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:57:25,242 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 13:57:25,245 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:57:25,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:57:25 BoogieIcfgContainer [2021-11-23 13:57:25,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:57:25,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:57:25,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:57:25,285 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:57:25,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:24" (3/4) ... [2021-11-23 13:57:25,289 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 13:57:25,289 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:57:25,291 INFO L158 Benchmark]: Toolchain (without parser) took 1335.19ms. Allocated memory is still 132.1MB. Free memory was 91.1MB in the beginning and 67.4MB in the end (delta: 23.7MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2021-11-23 13:57:25,292 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 132.1MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:57:25,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.89ms. Allocated memory is still 132.1MB. Free memory was 90.9MB in the beginning and 104.4MB in the end (delta: -13.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:57:25,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.73ms. Allocated memory is still 132.1MB. Free memory was 104.4MB in the beginning and 102.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:57:25,297 INFO L158 Benchmark]: Boogie Preprocessor took 29.01ms. Allocated memory is still 132.1MB. Free memory was 102.7MB in the beginning and 101.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:57:25,300 INFO L158 Benchmark]: RCFGBuilder took 343.44ms. Allocated memory is still 132.1MB. Free memory was 101.1MB in the beginning and 90.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:57:25,301 INFO L158 Benchmark]: TraceAbstraction took 591.97ms. Allocated memory is still 132.1MB. Free memory was 90.1MB in the beginning and 67.5MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 13:57:25,302 INFO L158 Benchmark]: Witness Printer took 4.99ms. Allocated memory is still 132.1MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 147.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:57:25,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 132.1MB. Free memory is still 107.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.89ms. Allocated memory is still 132.1MB. Free memory was 90.9MB in the beginning and 104.4MB in the end (delta: -13.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.73ms. Allocated memory is still 132.1MB. Free memory was 104.4MB in the beginning and 102.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.01ms. Allocated memory is still 132.1MB. Free memory was 102.7MB in the beginning and 101.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 343.44ms. Allocated memory is still 132.1MB. Free memory was 101.1MB in the beginning and 90.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 591.97ms. Allocated memory is still 132.1MB. Free memory was 90.1MB in the beginning and 67.5MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.99ms. Allocated memory is still 132.1MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 147.0kB). 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 93. 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) 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)=49, x=49] [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)=49, x=49] [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, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s 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, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2021-11-23 13:57:25,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/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_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9825b79dc05674941f0d6760d5ee353656990fb98a94517f1752c6b08ae8db0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:57:27,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:57:27,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:57:27,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:57:27,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:57:27,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:57:27,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:57:27,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:57:27,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:57:27,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:57:27,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:57:27,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:57:27,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:57:27,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:57:27,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:57:27,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:57:27,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:57:27,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:57:27,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:57:27,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:57:27,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:57:27,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:57:27,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:57:27,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:57:27,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:57:27,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:57:27,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:57:27,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:57:27,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:57:27,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:57:27,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:57:27,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:57:27,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:57:27,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:57:27,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:57:27,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:57:27,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:57:27,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:57:27,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:57:27,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:57:27,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:57:27,944 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-23 13:57:27,990 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:57:27,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:57:27,991 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:57:27,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:57:27,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:57:27,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:57:27,994 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:57:27,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:57:27,994 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:57:27,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:57:27,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:57:27,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:57:27,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:57:27,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:57:27,996 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 13:57:27,997 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 13:57:27,997 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 13:57:27,997 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:57:27,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:57:27,997 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:57:27,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:57:27,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:57:27,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:57:27,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:57:27,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:57:27,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:57:27,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:57:27,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:57:27,999 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 13:57:27,999 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 13:57:28,000 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:57:28,000 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:57:28,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:57:28,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:57:28,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 13:57:28,001 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_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9825b79dc05674941f0d6760d5ee353656990fb98a94517f1752c6b08ae8db0 [2021-11-23 13:57:28,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:57:28,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:57:28,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:57:28,441 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:57:28,442 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:57:28,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/combinations/gcd_3+newton_1_6.i [2021-11-23 13:57:28,514 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/data/9c21cd974/baacee8d04a94157b86bbbc049448be7/FLAG73ef069b0 [2021-11-23 13:57:29,088 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:57:29,089 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i [2021-11-23 13:57:29,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/data/9c21cd974/baacee8d04a94157b86bbbc049448be7/FLAG73ef069b0 [2021-11-23 13:57:29,432 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/data/9c21cd974/baacee8d04a94157b86bbbc049448be7 [2021-11-23 13:57:29,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:57:29,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:57:29,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:57:29,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:57:29,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:57:29,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:57:29" (1/1) ... [2021-11-23 13:57:29,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d5a02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29, skipping insertion in model container [2021-11-23 13:57:29,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:57:29" (1/1) ... [2021-11-23 13:57:29,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:57:29,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:57:29,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[1226,1239] [2021-11-23 13:57:29,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[2820,2833] [2021-11-23 13:57:29,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:57:29,683 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:57:29,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[1226,1239] [2021-11-23 13:57:29,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/sv-benchmarks/c/combinations/gcd_3+newton_1_6.i[2820,2833] [2021-11-23 13:57:29,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:57:29,769 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:57:29,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29 WrapperNode [2021-11-23 13:57:29,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:57:29,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:57:29,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:57:29,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:57:29,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29" (1/1) ... [2021-11-23 13:57:29,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29" (1/1) ... [2021-11-23 13:57:29,811 INFO L137 Inliner]: procedures = 28, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 73 [2021-11-23 13:57:29,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:57:29,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:57:29,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:57:29,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:57:29,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29" (1/1) ... [2021-11-23 13:57:29,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29" (1/1) ... [2021-11-23 13:57:29,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29" (1/1) ... [2021-11-23 13:57:29,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29" (1/1) ... [2021-11-23 13:57:29,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29" (1/1) ... [2021-11-23 13:57:29,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29" (1/1) ... [2021-11-23 13:57:29,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29" (1/1) ... [2021-11-23 13:57:29,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:57:29,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:57:29,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:57:29,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:57:29,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29" (1/1) ... [2021-11-23 13:57:29,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:57:29,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:57:29,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:57:29,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:57:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:57:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 13:57:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:57:29,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:57:30,015 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:57:30,017 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:57:36,371 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:57:36,376 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:57:36,376 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 13:57:36,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:36 BoogieIcfgContainer [2021-11-23 13:57:36,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:57:36,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:57:36,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:57:36,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:57:36,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:57:29" (1/3) ... [2021-11-23 13:57:36,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50513f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:36, skipping insertion in model container [2021-11-23 13:57:36,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:29" (2/3) ... [2021-11-23 13:57:36,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50513f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:36, skipping insertion in model container [2021-11-23 13:57:36,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:36" (3/3) ... [2021-11-23 13:57:36,386 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_6.i [2021-11-23 13:57:36,391 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:57:36,391 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 13:57:36,429 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:57:36,437 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=PETRI_NET, 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 [2021-11-23 13:57:36,437 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 13:57:36,449 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) [2021-11-23 13:57:36,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:57:36,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:36,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:36,456 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:57:36,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:36,462 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2021-11-23 13:57:36,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:57:36,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81257001] [2021-11-23 13:57:36,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:36,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:57:36,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:57:36,490 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:57:36,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 13:57:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:57:37,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 13:57:37,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:57:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:37,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:57:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:38,026 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:57:38,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81257001] [2021-11-23 13:57:38,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81257001] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:57:38,027 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:57:38,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 13:57:38,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953971790] [2021-11-23 13:57:38,032 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:57:38,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:57:38,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:57:38,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:57:38,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:57:38,075 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) [2021-11-23 13:57:38,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:57:38,098 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2021-11-23 13:57:38,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:57:38,101 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 [2021-11-23 13:57:38,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:57:38,108 INFO L225 Difference]: With dead ends: 47 [2021-11-23 13:57:38,109 INFO L226 Difference]: Without dead ends: 19 [2021-11-23 13:57:38,113 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 [2021-11-23 13:57:38,118 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:57:38,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:57:38,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-23 13:57:38,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-23 13:57:38,154 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) [2021-11-23 13:57:38,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-23 13:57:38,157 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2021-11-23 13:57:38,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:57:38,158 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-23 13:57:38,158 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) [2021-11-23 13:57:38,159 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-23 13:57:38,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 13:57:38,160 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:57:38,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:57:38,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:38,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:57:38,387 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:57:38,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:57:38,388 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2021-11-23 13:57:38,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:57:38,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039849073] [2021-11-23 13:57:38,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:57:38,389 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:57:38,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:57:38,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:57:38,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 13:57:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:57:44,749 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:57:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:57:57,814 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-23 13:57:57,815 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 13:57:57,817 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-23 13:57:57,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-23 13:57:57,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:57:58,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:57:58,023 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 13:57:58,026 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:57:58,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:57:58 BoogieIcfgContainer [2021-11-23 13:57:58,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:57:58,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:57:58,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:57:58,060 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:57:58,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:36" (3/4) ... [2021-11-23 13:57:58,063 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 13:57:58,108 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:57:58,108 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:57:58,109 INFO L158 Benchmark]: Toolchain (without parser) took 28670.78ms. Allocated memory is still 67.1MB. Free memory was 48.8MB in the beginning and 31.1MB in the end (delta: 17.7MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2021-11-23 13:57:58,110 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:57:58,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.88ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 50.3MB in the end (delta: -1.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 13:57:58,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.97ms. Allocated memory is still 67.1MB. Free memory was 50.3MB in the beginning and 48.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:57:58,119 INFO L158 Benchmark]: Boogie Preprocessor took 53.43ms. Allocated memory is still 67.1MB. Free memory was 48.5MB in the beginning and 47.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:57:58,119 INFO L158 Benchmark]: RCFGBuilder took 6511.81ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 36.5MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:57:58,120 INFO L158 Benchmark]: TraceAbstraction took 21679.87ms. Allocated memory is still 67.1MB. Free memory was 36.1MB in the beginning and 33.0MB in the end (delta: 3.2MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2021-11-23 13:57:58,126 INFO L158 Benchmark]: Witness Printer took 48.31ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 31.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:57:58,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.88ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 50.3MB in the end (delta: -1.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.97ms. Allocated memory is still 67.1MB. Free memory was 50.3MB in the beginning and 48.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.43ms. Allocated memory is still 67.1MB. Free memory was 48.5MB in the beginning and 47.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6511.81ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 36.5MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 21679.87ms. Allocated memory is still 67.1MB. Free memory was 36.1MB in the beginning and 33.0MB in the end (delta: 3.2MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Witness Printer took 48.31ms. Allocated memory is still 67.1MB. Free memory was 33.0MB in the beginning and 31.1MB in the end (delta: 1.8MB). 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)=-0.9217368364334106, \result=-0.7968756556510925, x=-0.9217368364334106] [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)=-0.9217368364334106, \result=0.6061280369758606, x=-0.9217368364334106] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-0.9217368364334106, x=0.3929617404937744] [L102] reach_error() VAL [IN=-0.9217368364334106, x=0.3929617404937744] - 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: 21.6s, 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, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s 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, 0.0s 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, 7.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 30 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! [2021-11-23 13:57:58,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_777e848f-7b79-4281-9e94-24740c2e1837/bin/uautomizer-wIGwrQj20G/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