./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_2+newton_1_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0 --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 b8d2b9f69b0c816e269dea56d57200f8896cad5b0d3fcdf300db44a3be91845d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:01:23,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:01:23,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:01:23,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:01:23,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:01:23,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:01:23,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:01:23,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:01:23,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:01:23,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:01:23,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:01:23,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:01:23,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:01:23,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:01:23,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:01:23,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:01:23,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:01:23,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:01:23,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:01:23,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:01:23,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:01:23,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:01:23,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:01:23,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:01:23,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:01:23,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:01:23,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:01:23,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:01:23,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:01:23,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:01:23,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:01:23,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:01:23,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:01:23,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:01:23,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:01:23,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:01:23,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:01:23,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:01:23,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:01:23,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:01:23,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:01:23,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 15:01:23,293 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:01:23,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:01:23,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:01:23,295 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:01:23,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:01:23,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:01:23,297 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:01:23,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:01:23,298 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:01:23,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:01:23,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:01:23,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:01:23,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:01:23,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:01:23,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:01:23,300 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:01:23,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:01:23,301 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:01:23,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:01:23,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:01:23,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:01:23,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:01:23,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:01:23,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:01:23,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:01:23,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:01:23,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:01:23,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:01:23,304 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:01:23,305 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:01:23,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:01:23,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:01:23,306 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_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8d2b9f69b0c816e269dea56d57200f8896cad5b0d3fcdf300db44a3be91845d [2021-11-22 15:01:23,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:01:23,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:01:23,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:01:23,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:01:23,609 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:01:23,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/combinations/gcd_2+newton_1_7.i [2021-11-22 15:01:23,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/data/3cc407dc6/6a5f805bff334732974004333e9a7c31/FLAGb34f9c9f3 [2021-11-22 15:01:24,141 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:01:24,142 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/sv-benchmarks/c/combinations/gcd_2+newton_1_7.i [2021-11-22 15:01:24,150 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/data/3cc407dc6/6a5f805bff334732974004333e9a7c31/FLAGb34f9c9f3 [2021-11-22 15:01:24,511 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/data/3cc407dc6/6a5f805bff334732974004333e9a7c31 [2021-11-22 15:01:24,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:01:24,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:01:24,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:01:24,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:01:24,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:01:24,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:01:24" (1/1) ... [2021-11-22 15:01:24,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690a25be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24, skipping insertion in model container [2021-11-22 15:01:24,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:01:24" (1/1) ... [2021-11-22 15:01:24,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:01:24,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:01:24,711 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_13dc41f3-5628-4e87-84b8-00516f87854a/sv-benchmarks/c/combinations/gcd_2+newton_1_7.i[1226,1239] [2021-11-22 15:01:24,743 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_13dc41f3-5628-4e87-84b8-00516f87854a/sv-benchmarks/c/combinations/gcd_2+newton_1_7.i[2820,2833] [2021-11-22 15:01:24,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:01:24,755 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:01:24,769 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_13dc41f3-5628-4e87-84b8-00516f87854a/sv-benchmarks/c/combinations/gcd_2+newton_1_7.i[1226,1239] [2021-11-22 15:01:24,784 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_13dc41f3-5628-4e87-84b8-00516f87854a/sv-benchmarks/c/combinations/gcd_2+newton_1_7.i[2820,2833] [2021-11-22 15:01:24,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:01:24,802 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:01:24,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24 WrapperNode [2021-11-22 15:01:24,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:01:24,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:01:24,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:01:24,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:01:24,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24" (1/1) ... [2021-11-22 15:01:24,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24" (1/1) ... [2021-11-22 15:01:24,850 INFO L137 Inliner]: procedures = 27, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 78 [2021-11-22 15:01:24,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:01:24,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:01:24,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:01:24,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:01:24,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24" (1/1) ... [2021-11-22 15:01:24,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24" (1/1) ... [2021-11-22 15:01:24,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24" (1/1) ... [2021-11-22 15:01:24,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24" (1/1) ... [2021-11-22 15:01:24,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24" (1/1) ... [2021-11-22 15:01:24,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24" (1/1) ... [2021-11-22 15:01:24,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24" (1/1) ... [2021-11-22 15:01:24,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:01:24,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:01:24,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:01:24,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:01:24,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24" (1/1) ... [2021-11-22 15:01:24,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:01:24,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:01:24,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:01:24,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:01:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:01:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:01:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:01:24,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:01:25,079 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:01:25,081 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:01:25,308 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:01:25,314 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:01:25,315 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 15:01:25,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:01:25 BoogieIcfgContainer [2021-11-22 15:01:25,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:01:25,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:01:25,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:01:25,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:01:25,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:01:24" (1/3) ... [2021-11-22 15:01:25,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6955534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:01:25, skipping insertion in model container [2021-11-22 15:01:25,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:24" (2/3) ... [2021-11-22 15:01:25,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6955534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:01:25, skipping insertion in model container [2021-11-22 15:01:25,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:01:25" (3/3) ... [2021-11-22 15:01:25,337 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_7.i [2021-11-22 15:01:25,343 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:01:25,343 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-22 15:01:25,476 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:01:25,499 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 [2021-11-22 15:01:25,500 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-22 15:01:25,517 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) [2021-11-22 15:01:25,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 15:01:25,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:01:25,524 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:01:25,524 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:01:25,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:01:25,531 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2021-11-22 15:01:25,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:01:25,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619238367] [2021-11-22 15:01:25,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:01:25,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:01:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:01:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:01:25,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:01:25,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619238367] [2021-11-22 15:01:25,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619238367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:01:25,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:01:25,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:01:25,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602229200] [2021-11-22 15:01:25,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:01:25,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:01:25,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:01:25,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:01:25,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:01:25,822 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) [2021-11-22 15:01:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:01:25,847 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2021-11-22 15:01:25,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:01:25,850 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 [2021-11-22 15:01:25,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:01:25,859 INFO L225 Difference]: With dead ends: 47 [2021-11-22 15:01:25,860 INFO L226 Difference]: Without dead ends: 19 [2021-11-22 15:01:25,865 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 [2021-11-22 15:01:25,872 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 [2021-11-22 15:01:25,875 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] [2021-11-22 15:01:25,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-22 15:01:25,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-22 15:01:25,923 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) [2021-11-22 15:01:25,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-22 15:01:25,926 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2021-11-22 15:01:25,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:01:25,927 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-22 15:01:25,927 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) [2021-11-22 15:01:25,928 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-22 15:01:25,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 15:01:25,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:01:25,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:01:25,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:01:25,931 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:01:25,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:01:25,936 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2021-11-22 15:01:25,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:01:25,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259323130] [2021-11-22 15:01:25,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:01:25,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:01:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:01:25,966 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:01:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:01:26,025 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:01:26,026 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 15:01:26,032 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-22 15:01:26,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-22 15:01:26,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:01:26,051 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 15:01:26,060 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:01:26,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:01:26 BoogieIcfgContainer [2021-11-22 15:01:26,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:01:26,097 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:01:26,098 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:01:26,099 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:01:26,099 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:01:25" (3/4) ... [2021-11-22 15:01:26,103 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 15:01:26,103 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:01:26,106 INFO L158 Benchmark]: Toolchain (without parser) took 1589.05ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 44.5MB in the beginning and 62.1MB in the end (delta: -17.6MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2021-11-22 15:01:26,106 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 60.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:01:26,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.70ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 44.3MB in the beginning and 76.6MB in the end (delta: -32.3MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-11-22 15:01:26,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.29ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 75.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:01:26,115 INFO L158 Benchmark]: Boogie Preprocessor took 28.72ms. Allocated memory is still 104.9MB. Free memory was 75.0MB in the beginning and 74.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:01:26,116 INFO L158 Benchmark]: RCFGBuilder took 436.40ms. Allocated memory is still 104.9MB. Free memory was 73.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 15:01:26,117 INFO L158 Benchmark]: TraceAbstraction took 777.85ms. Allocated memory is still 104.9MB. Free memory was 62.9MB in the beginning and 62.3MB in the end (delta: 618.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:01:26,117 INFO L158 Benchmark]: Witness Printer took 5.88ms. Allocated memory is still 104.9MB. Free memory was 62.3MB in the beginning and 62.1MB in the end (delta: 175.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:01:26,126 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 83.9MB. Free memory is still 60.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.70ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 44.3MB in the beginning and 76.6MB in the end (delta: -32.3MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.29ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 75.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.72ms. Allocated memory is still 104.9MB. Free memory was 75.0MB in the beginning and 74.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 436.40ms. Allocated memory is still 104.9MB. Free memory was 73.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 777.85ms. Allocated memory is still 104.9MB. Free memory was 62.9MB in the beginning and 62.3MB in the end (delta: 618.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.88ms. Allocated memory is still 104.9MB. Free memory was 62.3MB in the beginning and 62.1MB in the end (delta: 175.5kB). 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 > -1.4f && IN < 1.4f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [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: 0.6s, 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, 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 [2021-11-22 15:01:26,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/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_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0 --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 b8d2b9f69b0c816e269dea56d57200f8896cad5b0d3fcdf300db44a3be91845d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:01:28,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:01:28,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:01:28,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:01:28,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:01:28,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:01:28,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:01:29,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:01:29,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:01:29,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:01:29,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:01:29,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:01:29,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:01:29,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:01:29,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:01:29,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:01:29,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:01:29,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:01:29,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:01:29,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:01:29,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:01:29,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:01:29,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:01:29,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:01:29,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:01:29,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:01:29,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:01:29,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:01:29,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:01:29,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:01:29,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:01:29,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:01:29,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:01:29,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:01:29,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:01:29,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:01:29,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:01:29,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:01:29,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:01:29,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:01:29,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:01:29,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-22 15:01:29,132 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:01:29,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:01:29,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:01:29,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:01:29,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:01:29,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:01:29,137 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:01:29,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:01:29,137 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:01:29,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:01:29,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:01:29,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:01:29,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:01:29,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:01:29,140 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 15:01:29,140 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 15:01:29,140 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 15:01:29,141 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:01:29,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:01:29,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:01:29,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:01:29,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:01:29,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:01:29,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:01:29,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:01:29,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:01:29,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:01:29,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:01:29,144 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 15:01:29,144 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 15:01:29,145 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:01:29,145 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:01:29,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:01:29,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:01:29,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 15:01:29,146 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_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8d2b9f69b0c816e269dea56d57200f8896cad5b0d3fcdf300db44a3be91845d [2021-11-22 15:01:29,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:01:29,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:01:29,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:01:29,643 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:01:29,644 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:01:29,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/combinations/gcd_2+newton_1_7.i [2021-11-22 15:01:29,742 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/data/461d25fce/77995866772c43bd94abc74c1a984d0e/FLAGe348d3ebf [2021-11-22 15:01:30,380 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:01:30,381 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/sv-benchmarks/c/combinations/gcd_2+newton_1_7.i [2021-11-22 15:01:30,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/data/461d25fce/77995866772c43bd94abc74c1a984d0e/FLAGe348d3ebf [2021-11-22 15:01:30,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/data/461d25fce/77995866772c43bd94abc74c1a984d0e [2021-11-22 15:01:30,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:01:30,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:01:30,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:01:30,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:01:30,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:01:30,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:01:30" (1/1) ... [2021-11-22 15:01:30,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cab179e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:30, skipping insertion in model container [2021-11-22 15:01:30,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:01:30" (1/1) ... [2021-11-22 15:01:30,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:01:30,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:01:30,941 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_13dc41f3-5628-4e87-84b8-00516f87854a/sv-benchmarks/c/combinations/gcd_2+newton_1_7.i[1226,1239] [2021-11-22 15:01:30,970 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_13dc41f3-5628-4e87-84b8-00516f87854a/sv-benchmarks/c/combinations/gcd_2+newton_1_7.i[2820,2833] [2021-11-22 15:01:30,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:01:31,003 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:01:31,040 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_13dc41f3-5628-4e87-84b8-00516f87854a/sv-benchmarks/c/combinations/gcd_2+newton_1_7.i[1226,1239] [2021-11-22 15:01:31,053 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_13dc41f3-5628-4e87-84b8-00516f87854a/sv-benchmarks/c/combinations/gcd_2+newton_1_7.i[2820,2833] [2021-11-22 15:01:31,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:01:31,071 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:01:31,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:31 WrapperNode [2021-11-22 15:01:31,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:01:31,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:01:31,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:01:31,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:01:31,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:31" (1/1) ... [2021-11-22 15:01:31,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:31" (1/1) ... [2021-11-22 15:01:31,138 INFO L137 Inliner]: procedures = 28, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 73 [2021-11-22 15:01:31,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:01:31,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:01:31,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:01:31,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:01:31,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:31" (1/1) ... [2021-11-22 15:01:31,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:31" (1/1) ... [2021-11-22 15:01:31,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:31" (1/1) ... [2021-11-22 15:01:31,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:31" (1/1) ... [2021-11-22 15:01:31,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:31" (1/1) ... [2021-11-22 15:01:31,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:31" (1/1) ... [2021-11-22 15:01:31,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:31" (1/1) ... [2021-11-22 15:01:31,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:01:31,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:01:31,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:01:31,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:01:31,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:31" (1/1) ... [2021-11-22 15:01:31,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:01:31,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:01:31,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:01:31,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:01:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:01:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 15:01:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:01:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:01:31,409 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:01:31,411 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:01:37,929 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:01:37,937 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:01:37,937 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 15:01:37,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:01:37 BoogieIcfgContainer [2021-11-22 15:01:37,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:01:37,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:01:37,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:01:37,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:01:37,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:01:30" (1/3) ... [2021-11-22 15:01:37,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217cf502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:01:37, skipping insertion in model container [2021-11-22 15:01:37,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:31" (2/3) ... [2021-11-22 15:01:37,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217cf502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:01:37, skipping insertion in model container [2021-11-22 15:01:37,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:01:37" (3/3) ... [2021-11-22 15:01:37,954 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_7.i [2021-11-22 15:01:37,960 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:01:37,961 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-22 15:01:38,052 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:01:38,070 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 [2021-11-22 15:01:38,071 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-22 15:01:38,087 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) [2021-11-22 15:01:38,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 15:01:38,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:01:38,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:01:38,096 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:01:38,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:01:38,103 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2021-11-22 15:01:38,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:01:38,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569553612] [2021-11-22 15:01:38,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:01:38,120 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:01:38,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:01:38,124 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:01:38,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 15:01:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:01:39,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 15:01:39,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:01:39,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:01:39,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 15:01:39,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:01:39,810 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 15:01:39,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569553612] [2021-11-22 15:01:39,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569553612] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 15:01:39,812 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:01:39,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 15:01:39,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62611693] [2021-11-22 15:01:39,816 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 15:01:39,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:01:39,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 15:01:39,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:01:39,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:01:39,859 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) [2021-11-22 15:01:39,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:01:39,878 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2021-11-22 15:01:39,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:01:39,881 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 [2021-11-22 15:01:39,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:01:39,890 INFO L225 Difference]: With dead ends: 47 [2021-11-22 15:01:39,890 INFO L226 Difference]: Without dead ends: 19 [2021-11-22 15:01:39,894 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 [2021-11-22 15:01:39,899 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 [2021-11-22 15:01:39,900 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] [2021-11-22 15:01:39,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-22 15:01:39,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-22 15:01:39,931 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) [2021-11-22 15:01:39,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-22 15:01:39,934 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2021-11-22 15:01:39,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:01:39,934 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-22 15:01:39,935 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) [2021-11-22 15:01:39,935 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-22 15:01:39,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 15:01:39,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:01:39,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:01:39,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:01:40,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:01:40,148 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:01:40,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:01:40,149 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2021-11-22 15:01:40,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 15:01:40,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751908711] [2021-11-22 15:01:40,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:01:40,150 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 15:01:40,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 15:01:40,152 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 15:01:40,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 15:01:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:01:45,618 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:03:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:03:56,030 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-22 15:03:56,031 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 15:03:56,035 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-22 15:03:56,048 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-22 15:03:56,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 15:03:56,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:03:56,253 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 15:03:56,257 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:03:56,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:03:56 BoogieIcfgContainer [2021-11-22 15:03:56,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:03:56,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:03:56,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:03:56,305 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:03:56,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:01:37" (3/4) ... [2021-11-22 15:03:56,308 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 15:03:56,353 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 15:03:56,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:03:56,354 INFO L158 Benchmark]: Toolchain (without parser) took 145604.88ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 43.4MB in the beginning and 58.3MB in the end (delta: -14.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:03:56,355 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 62.9MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:03:56,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.04ms. Allocated memory is still 62.9MB. Free memory was 43.2MB in the beginning and 45.2MB in the end (delta: -2.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 15:03:56,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.97ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 43.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:03:56,357 INFO L158 Benchmark]: Boogie Preprocessor took 47.78ms. Allocated memory is still 62.9MB. Free memory was 43.2MB in the beginning and 41.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:03:56,358 INFO L158 Benchmark]: RCFGBuilder took 6752.16ms. Allocated memory is still 62.9MB. Free memory was 41.8MB in the beginning and 31.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 15:03:56,358 INFO L158 Benchmark]: TraceAbstraction took 138353.87ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 31.0MB in the beginning and 37.8MB in the end (delta: -6.8MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2021-11-22 15:03:56,359 INFO L158 Benchmark]: Witness Printer took 48.94ms. Allocated memory is still 77.6MB. Free memory was 59.9MB in the beginning and 58.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:03:56,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 62.9MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.04ms. Allocated memory is still 62.9MB. Free memory was 43.2MB in the beginning and 45.2MB in the end (delta: -2.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.97ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 43.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.78ms. Allocated memory is still 62.9MB. Free memory was 43.2MB in the beginning and 41.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6752.16ms. Allocated memory is still 62.9MB. Free memory was 41.8MB in the beginning and 31.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 138353.87ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 31.0MB in the beginning and 37.8MB in the end (delta: -6.8MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Witness Printer took 48.94ms. Allocated memory is still 77.6MB. Free memory was 59.9MB in the beginning and 58.3MB in the end (delta: 1.7MB). 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 - 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 > -1.4f && IN < 1.4f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.3358972072601318, \result=-0.9755142331123352, x=-1.3358972072601318] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.3358972072601318, \result=0.24828653037548065, x=-1.3358972072601318] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-1.3358972072601318, x=2.5930886268615723] [L102] reach_error() VAL [IN=-1.3358972072601318, x=2.5930886268615723] - 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: 138.2s, 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, 6.8s 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! [2021-11-22 15:03:56,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13dc41f3-5628-4e87-84b8-00516f87854a/bin/uautomizer-w2VwFs6gM0/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