./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_2_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_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/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_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_2_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/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_e8bfc788-f969-467c-8058-01de4f1b7fbc/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 184de52a0dff4eb1d8c7e38c30c44a1d55b19bad29c4bb3af8f1421516bacfd9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:57:51,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:57:51,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:57:51,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:57:51,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:57:51,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:57:51,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:57:51,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:57:51,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:57:52,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:57:52,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:57:52,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:57:52,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:57:52,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:57:52,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:57:52,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:57:52,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:57:52,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:57:52,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:57:52,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:57:52,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:57:52,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:57:52,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:57:52,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:57:52,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:57:52,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:57:52,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:57:52,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:57:52,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:57:52,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:57:52,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:57:52,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:57:52,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:57:52,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:57:52,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:57:52,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:57:52,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:57:52,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:57:52,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:57:52,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:57:52,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:57:52,050 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:57:52,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:57:52,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:57:52,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:57:52,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:57:52,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:57:52,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:57:52,093 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:57:52,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:57:52,094 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:57:52,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:57:52,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:57:52,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:57:52,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:57:52,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:57:52,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:57:52,096 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:57:52,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:57:52,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:57:52,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:57:52,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:57:52,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:57:52,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:57:52,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:57:52,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:57:52,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:57:52,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:57:52,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:57:52,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:57:52,100 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:57:52,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:57:52,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:57:52,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:57:52,103 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_e8bfc788-f969-467c-8058-01de4f1b7fbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 184de52a0dff4eb1d8c7e38c30c44a1d55b19bad29c4bb3af8f1421516bacfd9 [2021-11-22 14:57:52,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:57:52,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:57:52,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:57:52,402 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:57:52,402 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:57:52,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/combinations/gcd_1+newton_2_7.i [2021-11-22 14:57:52,482 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/data/9cce37b0c/edc4dfcc0a43431a8ca0e4e16f187f09/FLAG8ac225714 [2021-11-22 14:57:52,913 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:57:52,913 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i [2021-11-22 14:57:52,926 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/data/9cce37b0c/edc4dfcc0a43431a8ca0e4e16f187f09/FLAG8ac225714 [2021-11-22 14:57:53,308 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/data/9cce37b0c/edc4dfcc0a43431a8ca0e4e16f187f09 [2021-11-22 14:57:53,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:57:53,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:57:53,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:57:53,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:57:53,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:57:53,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:57:53" (1/1) ... [2021-11-22 14:57:53,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7319348f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53, skipping insertion in model container [2021-11-22 14:57:53,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:57:53" (1/1) ... [2021-11-22 14:57:53,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:57:53,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:57:53,579 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_e8bfc788-f969-467c-8058-01de4f1b7fbc/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[1226,1239] [2021-11-22 14:57:53,603 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_e8bfc788-f969-467c-8058-01de4f1b7fbc/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[2807,2820] [2021-11-22 14:57:53,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:57:53,613 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:57:53,625 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_e8bfc788-f969-467c-8058-01de4f1b7fbc/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[1226,1239] [2021-11-22 14:57:53,637 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_e8bfc788-f969-467c-8058-01de4f1b7fbc/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[2807,2820] [2021-11-22 14:57:53,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:57:53,652 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:57:53,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53 WrapperNode [2021-11-22 14:57:53,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:57:53,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:57:53,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:57:53,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:57:53,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53" (1/1) ... [2021-11-22 14:57:53,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53" (1/1) ... [2021-11-22 14:57:53,697 INFO L137 Inliner]: procedures = 27, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 89 [2021-11-22 14:57:53,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:57:53,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:57:53,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:57:53,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:57:53,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53" (1/1) ... [2021-11-22 14:57:53,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53" (1/1) ... [2021-11-22 14:57:53,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53" (1/1) ... [2021-11-22 14:57:53,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53" (1/1) ... [2021-11-22 14:57:53,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53" (1/1) ... [2021-11-22 14:57:53,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53" (1/1) ... [2021-11-22 14:57:53,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53" (1/1) ... [2021-11-22 14:57:53,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:57:53,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:57:53,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:57:53,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:57:53,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53" (1/1) ... [2021-11-22 14:57:53,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:57:53,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:57:53,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:57:53,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:57:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:57:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:57:53,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:57:53,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:57:53,873 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:57:53,874 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:57:54,027 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:57:54,033 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:57:54,034 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 14:57:54,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:57:54 BoogieIcfgContainer [2021-11-22 14:57:54,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:57:54,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:57:54,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:57:54,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:57:54,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:57:53" (1/3) ... [2021-11-22 14:57:54,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2682f746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:57:54, skipping insertion in model container [2021-11-22 14:57:54,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:53" (2/3) ... [2021-11-22 14:57:54,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2682f746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:57:54, skipping insertion in model container [2021-11-22 14:57:54,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:57:54" (3/3) ... [2021-11-22 14:57:54,045 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_2_7.i [2021-11-22 14:57:54,050 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:57:54,051 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-22 14:57:54,091 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:57:54,098 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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 14:57:54,099 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-22 14:57:54,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 28 states have internal predecessors, (37), 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 14:57:54,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 14:57:54,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:57:54,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:57:54,120 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:57:54,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:57:54,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2030598962, now seen corresponding path program 1 times [2021-11-22 14:57:54,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:57:54,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305275950] [2021-11-22 14:57:54,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:57:54,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:57:54,211 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 14:57:54,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [979339365] [2021-11-22 14:57:54,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:57:54,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:57:54,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:57:54,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:57:54,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 14:57:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:57:54,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 14:57:54,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:57:54,439 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 14:57:54,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 14:57:54,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:57:54,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305275950] [2021-11-22 14:57:54,444 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 14:57:54,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979339365] [2021-11-22 14:57:54,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979339365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:57:54,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:57:54,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:57:54,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515305563] [2021-11-22 14:57:54,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:57:54,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:57:54,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:57:54,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:57:54,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:57:54,481 INFO L87 Difference]: Start difference. First operand has 29 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 28 states have internal predecessors, (37), 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 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 14:57:54,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:57:54,507 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2021-11-22 14:57:54,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:57:54,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-11-22 14:57:54,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:57:54,536 INFO L225 Difference]: With dead ends: 52 [2021-11-22 14:57:54,537 INFO L226 Difference]: Without dead ends: 22 [2021-11-22 14:57:54,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:57:54,542 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:57:54,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 56 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:57:54,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-22 14:57:54,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-22 14:57:54,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 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 14:57:54,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-11-22 14:57:54,587 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 11 [2021-11-22 14:57:54,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:57:54,587 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-11-22 14:57:54,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 14:57:54,588 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-11-22 14:57:54,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 14:57:54,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:57:54,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:57:54,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 14:57:54,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-22 14:57:54,799 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:57:54,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:57:54,800 INFO L85 PathProgramCache]: Analyzing trace with hash -19206151, now seen corresponding path program 1 times [2021-11-22 14:57:54,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:57:54,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619965476] [2021-11-22 14:57:54,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:57:54,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:57:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:57:54,822 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:57:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:57:54,858 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:57:54,858 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 14:57:54,860 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-22 14:57:54,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-22 14:57:54,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:57:54,866 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 14:57:54,868 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 14:57:54,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:57:54 BoogieIcfgContainer [2021-11-22 14:57:54,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 14:57:54,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:57:54,893 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:57:54,893 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:57:54,894 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:57:54" (3/4) ... [2021-11-22 14:57:54,897 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 14:57:54,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:57:54,898 INFO L158 Benchmark]: Toolchain (without parser) took 1585.34ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 77.8MB in the beginning and 108.4MB in the end (delta: -30.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:57:54,899 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 87.1MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:57:54,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.98ms. Allocated memory is still 113.2MB. Free memory was 77.6MB in the beginning and 86.4MB in the end (delta: -8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:57:54,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.37ms. Allocated memory is still 113.2MB. Free memory was 86.4MB in the beginning and 84.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:57:54,901 INFO L158 Benchmark]: Boogie Preprocessor took 27.87ms. Allocated memory is still 113.2MB. Free memory was 84.7MB in the beginning and 83.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:57:54,901 INFO L158 Benchmark]: RCFGBuilder took 309.52ms. Allocated memory is still 113.2MB. Free memory was 83.0MB in the beginning and 72.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 14:57:54,902 INFO L158 Benchmark]: TraceAbstraction took 854.91ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 72.1MB in the beginning and 109.2MB in the end (delta: -37.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:57:54,903 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 138.4MB. Free memory was 109.2MB in the beginning and 108.4MB in the end (delta: 768.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:57:54,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 87.1MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.98ms. Allocated memory is still 113.2MB. Free memory was 77.6MB in the beginning and 86.4MB in the end (delta: -8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.37ms. Allocated memory is still 113.2MB. Free memory was 86.4MB in the beginning and 84.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.87ms. Allocated memory is still 113.2MB. Free memory was 84.7MB in the beginning and 83.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.52ms. Allocated memory is still 113.2MB. Free memory was 83.0MB in the beginning and 72.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 854.91ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 72.1MB in the beginning and 109.2MB in the end (delta: -37.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 138.4MB. Free memory was 109.2MB in the beginning and 108.4MB in the end (delta: 768.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 95. 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); [L95] CALL, EXPR f(x) [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)=51, x=51] [L95] RET, EXPR f(x) [L95] CALL, EXPR fp(x) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=51, x=51] [L95] RET, EXPR fp(x) [L95] x = x - f(x)/fp(x) [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, 29 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 30 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 2 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 4 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 14:57:54,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/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_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_2_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/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_e8bfc788-f969-467c-8058-01de4f1b7fbc/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 184de52a0dff4eb1d8c7e38c30c44a1d55b19bad29c4bb3af8f1421516bacfd9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:57:57,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:57:57,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:57:57,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:57:57,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:57:57,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:57:57,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:57:57,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:57:57,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:57:57,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:57:57,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:57:57,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:57:57,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:57:57,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:57:57,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:57:57,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:57:57,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:57:57,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:57:57,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:57:57,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:57:57,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:57:57,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:57:57,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:57:57,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:57:57,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:57:57,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:57:57,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:57:57,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:57:57,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:57:57,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:57:57,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:57:57,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:57:57,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:57:57,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:57:57,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:57:57,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:57:57,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:57:57,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:57:57,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:57:57,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:57:57,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:57:57,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-22 14:57:57,523 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:57:57,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:57:57,525 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:57:57,526 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:57:57,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:57:57,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:57:57,528 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:57:57,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:57:57,529 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:57:57,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:57:57,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:57:57,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:57:57,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:57:57,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:57:57,531 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 14:57:57,532 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 14:57:57,532 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 14:57:57,532 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:57:57,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:57:57,533 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:57:57,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:57:57,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:57:57,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:57:57,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:57:57,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:57:57,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:57:57,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:57:57,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:57:57,535 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 14:57:57,535 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 14:57:57,535 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:57:57,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:57:57,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:57:57,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:57:57,536 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 14:57:57,536 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_e8bfc788-f969-467c-8058-01de4f1b7fbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 184de52a0dff4eb1d8c7e38c30c44a1d55b19bad29c4bb3af8f1421516bacfd9 [2021-11-22 14:57:57,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:57:57,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:57:57,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:57:57,990 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:57:57,991 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:57:57,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/combinations/gcd_1+newton_2_7.i [2021-11-22 14:57:58,066 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/data/64bda3444/3658fb72d5a24339b454fc2ce98cb435/FLAG8f823a50b [2021-11-22 14:57:58,549 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:57:58,550 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i [2021-11-22 14:57:58,562 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/data/64bda3444/3658fb72d5a24339b454fc2ce98cb435/FLAG8f823a50b [2021-11-22 14:57:58,902 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/data/64bda3444/3658fb72d5a24339b454fc2ce98cb435 [2021-11-22 14:57:58,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:57:58,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:57:58,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:57:58,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:57:58,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:57:58,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:57:58" (1/1) ... [2021-11-22 14:57:58,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54a96403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:58, skipping insertion in model container [2021-11-22 14:57:58,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:57:58" (1/1) ... [2021-11-22 14:57:58,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:57:58,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:57:59,115 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_e8bfc788-f969-467c-8058-01de4f1b7fbc/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[1226,1239] [2021-11-22 14:57:59,143 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_e8bfc788-f969-467c-8058-01de4f1b7fbc/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[2807,2820] [2021-11-22 14:57:59,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:57:59,157 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:57:59,171 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_e8bfc788-f969-467c-8058-01de4f1b7fbc/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[1226,1239] [2021-11-22 14:57:59,184 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_e8bfc788-f969-467c-8058-01de4f1b7fbc/sv-benchmarks/c/combinations/gcd_1+newton_2_7.i[2807,2820] [2021-11-22 14:57:59,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:57:59,237 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:57:59,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:59 WrapperNode [2021-11-22 14:57:59,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:57:59,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:57:59,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:57:59,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:57:59,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:59" (1/1) ... [2021-11-22 14:57:59,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:59" (1/1) ... [2021-11-22 14:57:59,322 INFO L137 Inliner]: procedures = 28, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 84 [2021-11-22 14:57:59,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:57:59,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:57:59,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:57:59,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:57:59,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:59" (1/1) ... [2021-11-22 14:57:59,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:59" (1/1) ... [2021-11-22 14:57:59,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:59" (1/1) ... [2021-11-22 14:57:59,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:59" (1/1) ... [2021-11-22 14:57:59,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:59" (1/1) ... [2021-11-22 14:57:59,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:59" (1/1) ... [2021-11-22 14:57:59,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:59" (1/1) ... [2021-11-22 14:57:59,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:57:59,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:57:59,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:57:59,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:57:59,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:59" (1/1) ... [2021-11-22 14:57:59,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:57:59,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:57:59,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:57:59,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:57:59,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:57:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 14:57:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:57:59,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:57:59,601 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:57:59,602 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:58:11,002 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:58:11,008 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:58:11,008 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 14:58:11,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:58:11 BoogieIcfgContainer [2021-11-22 14:58:11,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:58:11,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:58:11,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:58:11,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:58:11,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:57:58" (1/3) ... [2021-11-22 14:58:11,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4728c86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:58:11, skipping insertion in model container [2021-11-22 14:58:11,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:59" (2/3) ... [2021-11-22 14:58:11,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4728c86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:58:11, skipping insertion in model container [2021-11-22 14:58:11,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:58:11" (3/3) ... [2021-11-22 14:58:11,018 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_2_7.i [2021-11-22 14:58:11,024 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:58:11,024 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-22 14:58:11,078 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:58:11,084 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 14:58:11,084 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-22 14:58:11,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 28 states have internal predecessors, (37), 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 14:58:11,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 14:58:11,105 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:58:11,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:58:11,106 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:58:11,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:58:11,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2030598962, now seen corresponding path program 1 times [2021-11-22 14:58:11,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:58:11,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130810912] [2021-11-22 14:58:11,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:58:11,124 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:58:11,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:58:11,127 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:58:11,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 14:58:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:58:11,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 14:58:11,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:58:11,478 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 14:58:11,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 14:58:11,659 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 14:58:11,660 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 14:58:11,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130810912] [2021-11-22 14:58:11,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130810912] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 14:58:11,661 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:58:11,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-22 14:58:11,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820433319] [2021-11-22 14:58:11,663 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 14:58:11,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:58:11,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 14:58:11,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:58:11,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:58:11,696 INFO L87 Difference]: Start difference. First operand has 29 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 28 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14:58:11,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:58:11,777 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2021-11-22 14:58:11,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:58:11,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 11 [2021-11-22 14:58:11,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:58:11,789 INFO L225 Difference]: With dead ends: 57 [2021-11-22 14:58:11,790 INFO L226 Difference]: Without dead ends: 22 [2021-11-22 14:58:11,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:58:11,799 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 14 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:58:11,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 64 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:58:11,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-22 14:58:11,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-22 14:58:11,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 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 14:58:11,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-11-22 14:58:11,837 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 11 [2021-11-22 14:58:11,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:58:11,838 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-11-22 14:58:11,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14:58:11,839 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-11-22 14:58:11,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 14:58:11,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:58:11,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:58:11,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-22 14:58:12,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 14:58:12,055 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:58:12,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:58:12,057 INFO L85 PathProgramCache]: Analyzing trace with hash -19206151, now seen corresponding path program 1 times [2021-11-22 14:58:12,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 14:58:12,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099934569] [2021-11-22 14:58:12,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:58:12,059 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 14:58:12,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 14:58:12,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 14:58:12,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 14:58:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:58:51,607 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:00:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:00:10,895 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-22 15:00:10,895 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 15:00:10,897 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-22 15:00:10,899 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-22 15:00:10,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 15:00:11,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 15:00:11,104 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 15:00:11,107 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 15:00:11,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 03:00:11 BoogieIcfgContainer [2021-11-22 15:00:11,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 15:00:11,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:00:11,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:00:11,161 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:00:11,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:58:11" (3/4) ... [2021-11-22 15:00:11,164 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 15:00:11,225 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 15:00:11,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:00:11,230 INFO L158 Benchmark]: Toolchain (without parser) took 132321.47ms. Allocated memory is still 71.3MB. Free memory was 49.2MB in the beginning and 30.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2021-11-22 15:00:11,231 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 54.5MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 41.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:00:11,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.74ms. Allocated memory is still 71.3MB. Free memory was 49.1MB in the beginning and 54.0MB in the end (delta: -4.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 15:00:11,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.37ms. Allocated memory is still 71.3MB. Free memory was 54.0MB in the beginning and 52.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:00:11,234 INFO L158 Benchmark]: Boogie Preprocessor took 77.60ms. Allocated memory is still 71.3MB. Free memory was 52.1MB in the beginning and 50.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:00:11,235 INFO L158 Benchmark]: RCFGBuilder took 11605.37ms. Allocated memory is still 71.3MB. Free memory was 50.5MB in the beginning and 39.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 15:00:11,239 INFO L158 Benchmark]: TraceAbstraction took 120148.72ms. Allocated memory is still 71.3MB. Free memory was 39.2MB in the beginning and 33.0MB in the end (delta: 6.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-11-22 15:00:11,240 INFO L158 Benchmark]: Witness Printer took 68.45ms. Allocated memory is still 71.3MB. Free memory was 33.0MB in the beginning and 30.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:00:11,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 54.5MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 41.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.74ms. Allocated memory is still 71.3MB. Free memory was 49.1MB in the beginning and 54.0MB in the end (delta: -4.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.37ms. Allocated memory is still 71.3MB. Free memory was 54.0MB in the beginning and 52.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 77.60ms. Allocated memory is still 71.3MB. Free memory was 52.1MB in the beginning and 50.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 11605.37ms. Allocated memory is still 71.3MB. Free memory was 50.5MB in the beginning and 39.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 120148.72ms. Allocated memory is still 71.3MB. Free memory was 39.2MB in the beginning and 33.0MB in the end (delta: 6.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 68.45ms. Allocated memory is still 71.3MB. Free memory was 33.0MB in the beginning and 30.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.4f && 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)=-1.3598443269729614, \result=-0.9812010526657104, x=-1.3598443269729614] [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)=-1.3598443269729614, \result=0.22667112946510315, x=-1.3598443269729614] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L95] CALL, EXPR f(x) [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)=2.9688987731933594, \result=0.9329970479011536, x=2.9688987731933594] [L95] RET, EXPR f(x) [L95] CALL, EXPR fp(x) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=2.9688987731933594, \result=0.7811558246612549, x=2.9688987731933594] [L95] RET, EXPR fp(x) [L95] x = x - f(x)/fp(x) [L101] COND TRUE !(x < 0.1) VAL [IN=-1.3598443269729614, x=1.774518609046936] [L102] reach_error() VAL [IN=-1.3598443269729614, x=1.774518609046936] - 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, 29 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 120.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 34 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 39.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 3 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 4 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 15:00:11,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8bfc788-f969-467c-8058-01de4f1b7fbc/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