./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa --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 7f72f5580e8ee240383987c5e02610bf09387ce8fa780da3ef6f20ea144f2408 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:03:00,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:03:00,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:03:00,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:03:00,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:03:00,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:03:00,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:03:00,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:03:00,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:03:00,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:03:00,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:03:00,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:03:00,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:03:00,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:03:00,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:03:00,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:03:00,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:03:00,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:03:00,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:03:00,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:03:00,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:03:00,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:03:00,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:03:00,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:03:00,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:03:00,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:03:00,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:03:00,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:03:00,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:03:00,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:03:00,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:03:00,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:03:00,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:03:00,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:03:00,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:03:00,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:03:00,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:03:00,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:03:00,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:03:00,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:03:00,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:03:00,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 21:03:00,422 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:03:00,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:03:00,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:03:00,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:03:00,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 21:03:00,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 21:03:00,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:03:00,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:03:00,424 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:03:00,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:03:00,425 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 21:03:00,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:03:00,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 21:03:00,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:03:00,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 21:03:00,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 21:03:00,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 21:03:00,425 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 21:03:00,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:03:00,426 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:03:00,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 21:03:00,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:03:00,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:03:00,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 21:03:00,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:03:00,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:03:00,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 21:03:00,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 21:03:00,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 21:03:00,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 21:03:00,427 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 21:03:00,427 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 21:03:00,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 21:03:00,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:03:00,428 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_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f72f5580e8ee240383987c5e02610bf09387ce8fa780da3ef6f20ea144f2408 [2021-12-06 21:03:00,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:03:00,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:03:00,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:03:00,648 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:03:00,649 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:03:00,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i [2021-12-06 21:03:00,691 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/data/7afbc620b/724f2a8824224caaa7591a1618b2a487/FLAG6d96a5094 [2021-12-06 21:03:01,064 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:03:01,065 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i [2021-12-06 21:03:01,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/data/7afbc620b/724f2a8824224caaa7591a1618b2a487/FLAG6d96a5094 [2021-12-06 21:03:01,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/data/7afbc620b/724f2a8824224caaa7591a1618b2a487 [2021-12-06 21:03:01,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:03:01,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:03:01,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:03:01,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:03:01,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:03:01,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:03:01" (1/1) ... [2021-12-06 21:03:01,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be7044e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01, skipping insertion in model container [2021-12-06 21:03:01,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:03:01" (1/1) ... [2021-12-06 21:03:01,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:03:01,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:03:01,237 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_d33135bd-0355-44ec-bbda-f6929b8249e8/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[1226,1239] [2021-12-06 21:03:01,262 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_d33135bd-0355-44ec-bbda-f6929b8249e8/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[2786,2799] [2021-12-06 21:03:01,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:03:01,271 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:03:01,281 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_d33135bd-0355-44ec-bbda-f6929b8249e8/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[1226,1239] [2021-12-06 21:03:01,291 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_d33135bd-0355-44ec-bbda-f6929b8249e8/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[2786,2799] [2021-12-06 21:03:01,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:03:01,306 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:03:01,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01 WrapperNode [2021-12-06 21:03:01,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:03:01,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:03:01,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:03:01,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:03:01,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01" (1/1) ... [2021-12-06 21:03:01,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01" (1/1) ... [2021-12-06 21:03:01,342 INFO L137 Inliner]: procedures = 27, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 78 [2021-12-06 21:03:01,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:03:01,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:03:01,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:03:01,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:03:01,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01" (1/1) ... [2021-12-06 21:03:01,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01" (1/1) ... [2021-12-06 21:03:01,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01" (1/1) ... [2021-12-06 21:03:01,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01" (1/1) ... [2021-12-06 21:03:01,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01" (1/1) ... [2021-12-06 21:03:01,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01" (1/1) ... [2021-12-06 21:03:01,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01" (1/1) ... [2021-12-06 21:03:01,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:03:01,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:03:01,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:03:01,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:03:01,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01" (1/1) ... [2021-12-06 21:03:01,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:03:01,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:03:01,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 21:03:01,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 21:03:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 21:03:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 21:03:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:03:01,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:03:01,472 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:03:01,473 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:03:01,598 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:03:01,603 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:03:01,604 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 21:03:01,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:03:01 BoogieIcfgContainer [2021-12-06 21:03:01,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:03:01,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 21:03:01,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 21:03:01,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 21:03:01,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 09:03:01" (1/3) ... [2021-12-06 21:03:01,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10837a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:03:01, skipping insertion in model container [2021-12-06 21:03:01,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:01" (2/3) ... [2021-12-06 21:03:01,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10837a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:03:01, skipping insertion in model container [2021-12-06 21:03:01,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:03:01" (3/3) ... [2021-12-06 21:03:01,612 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_7.i [2021-12-06 21:03:01,616 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 21:03:01,616 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 21:03:01,651 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 21:03:01,656 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 [2021-12-06 21:03:01,656 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-06 21:03:01,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:01,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 21:03:01,672 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:03:01,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:03:01,673 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:03:01,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:03:01,677 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2021-12-06 21:03:01,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:03:01,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734221024] [2021-12-06 21:03:01,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:03:01,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:03:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:03:01,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:03:01,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:03:01,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734221024] [2021-12-06 21:03:01,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734221024] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:03:01,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:03:01,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 21:03:01,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451116848] [2021-12-06 21:03:01,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:03:01,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 21:03:01,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:03:01,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 21:03:01,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 21:03:01,817 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:01,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:03:01,828 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2021-12-06 21:03:01,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 21:03:01,830 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 21:03:01,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:03:01,835 INFO L225 Difference]: With dead ends: 46 [2021-12-06 21:03:01,835 INFO L226 Difference]: Without dead ends: 19 [2021-12-06 21:03:01,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 21:03:01,840 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 21:03:01,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 21:03:01,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-06 21:03:01,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-06 21:03:01,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:01,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-12-06 21:03:01,864 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2021-12-06 21:03:01,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:03:01,864 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-12-06 21:03:01,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:01,865 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-12-06 21:03:01,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 21:03:01,865 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:03:01,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:03:01,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 21:03:01,866 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:03:01,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:03:01,866 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2021-12-06 21:03:01,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:03:01,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029693025] [2021-12-06 21:03:01,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:03:01,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:03:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:03:01,882 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:03:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:03:01,904 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:03:01,904 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 21:03:01,905 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-06 21:03:01,907 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-06 21:03:01,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 21:03:01,910 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 21:03:01,912 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 21:03:01,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 09:03:01 BoogieIcfgContainer [2021-12-06 21:03:01,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 21:03:01,929 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 21:03:01,929 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 21:03:01,929 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 21:03:01,930 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:03:01" (3/4) ... [2021-12-06 21:03:01,932 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 21:03:01,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 21:03:01,932 INFO L158 Benchmark]: Toolchain (without parser) took 848.06ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 52.8MB in the beginning and 74.4MB in the end (delta: -21.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:03:01,933 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 88.1MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:03:01,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.48ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 52.6MB in the beginning and 84.7MB in the end (delta: -32.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-12-06 21:03:01,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.41ms. Allocated memory is still 109.1MB. Free memory was 84.7MB in the beginning and 82.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:03:01,934 INFO L158 Benchmark]: Boogie Preprocessor took 22.55ms. Allocated memory is still 109.1MB. Free memory was 82.7MB in the beginning and 81.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:03:01,934 INFO L158 Benchmark]: RCFGBuilder took 239.01ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 70.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 21:03:01,935 INFO L158 Benchmark]: TraceAbstraction took 321.55ms. Allocated memory is still 109.1MB. Free memory was 70.5MB in the beginning and 74.4MB in the end (delta: -3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:03:01,935 INFO L158 Benchmark]: Witness Printer took 2.73ms. Allocated memory is still 109.1MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:03:01,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 88.1MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.48ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 52.6MB in the beginning and 84.7MB in the end (delta: -32.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.41ms. Allocated memory is still 109.1MB. Free memory was 84.7MB in the beginning and 82.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.55ms. Allocated memory is still 109.1MB. Free memory was 82.7MB in the beginning and 81.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 239.01ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 70.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 321.55ms. Allocated memory is still 109.1MB. Free memory was 70.5MB in the beginning and 74.4MB in the end (delta: -3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.73ms. Allocated memory is still 109.1MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 102]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=49, x=49] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=49] [L102] reach_error() VAL [IN=49] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 21:03:01,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa --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 7f72f5580e8ee240383987c5e02610bf09387ce8fa780da3ef6f20ea144f2408 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:03:03,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:03:03,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:03:03,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:03:03,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:03:03,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:03:03,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:03:03,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:03:03,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:03:03,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:03:03,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:03:03,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:03:03,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:03:03,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:03:03,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:03:03,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:03:03,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:03:03,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:03:03,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:03:03,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:03:03,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:03:03,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:03:03,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:03:03,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:03:03,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:03:03,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:03:03,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:03:03,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:03:03,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:03:03,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:03:03,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:03:03,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:03:03,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:03:03,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:03:03,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:03:03,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:03:03,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:03:03,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:03:03,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:03:03,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:03:03,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:03:03,523 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 21:03:03,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:03:03,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:03:03,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:03:03,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:03:03,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 21:03:03,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 21:03:03,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:03:03,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:03:03,543 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:03:03,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:03:03,543 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 21:03:03,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 21:03:03,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:03:03,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 21:03:03,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 21:03:03,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 21:03:03,544 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 21:03:03,544 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 21:03:03,544 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 21:03:03,544 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 21:03:03,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:03:03,545 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:03:03,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 21:03:03,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:03:03,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:03:03,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 21:03:03,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:03:03,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:03:03,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 21:03:03,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 21:03:03,546 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 21:03:03,546 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 21:03:03,546 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 21:03:03,546 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 21:03:03,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 21:03:03,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:03:03,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 21:03:03,546 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_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f72f5580e8ee240383987c5e02610bf09387ce8fa780da3ef6f20ea144f2408 [2021-12-06 21:03:03,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:03:03,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:03:03,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:03:03,794 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:03:03,795 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:03:03,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/combinations/gcd_1+newton_1_7.i [2021-12-06 21:03:03,837 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/data/d6ab0f3f3/7b55f96544e74a2c9675286ba28a8177/FLAG236c29605 [2021-12-06 21:03:04,219 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:03:04,220 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i [2021-12-06 21:03:04,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/data/d6ab0f3f3/7b55f96544e74a2c9675286ba28a8177/FLAG236c29605 [2021-12-06 21:03:04,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/data/d6ab0f3f3/7b55f96544e74a2c9675286ba28a8177 [2021-12-06 21:03:04,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:03:04,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:03:04,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:03:04,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:03:04,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:03:04,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:03:04" (1/1) ... [2021-12-06 21:03:04,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248e8761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04, skipping insertion in model container [2021-12-06 21:03:04,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:03:04" (1/1) ... [2021-12-06 21:03:04,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:03:04,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:03:04,370 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_d33135bd-0355-44ec-bbda-f6929b8249e8/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[1226,1239] [2021-12-06 21:03:04,389 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_d33135bd-0355-44ec-bbda-f6929b8249e8/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[2786,2799] [2021-12-06 21:03:04,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:03:04,407 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:03:04,423 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_d33135bd-0355-44ec-bbda-f6929b8249e8/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[1226,1239] [2021-12-06 21:03:04,434 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_d33135bd-0355-44ec-bbda-f6929b8249e8/sv-benchmarks/c/combinations/gcd_1+newton_1_7.i[2786,2799] [2021-12-06 21:03:04,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:03:04,450 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:03:04,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04 WrapperNode [2021-12-06 21:03:04,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:03:04,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:03:04,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:03:04,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:03:04,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04" (1/1) ... [2021-12-06 21:03:04,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04" (1/1) ... [2021-12-06 21:03:04,480 INFO L137 Inliner]: procedures = 28, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 73 [2021-12-06 21:03:04,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:03:04,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:03:04,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:03:04,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:03:04,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04" (1/1) ... [2021-12-06 21:03:04,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04" (1/1) ... [2021-12-06 21:03:04,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04" (1/1) ... [2021-12-06 21:03:04,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04" (1/1) ... [2021-12-06 21:03:04,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04" (1/1) ... [2021-12-06 21:03:04,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04" (1/1) ... [2021-12-06 21:03:04,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04" (1/1) ... [2021-12-06 21:03:04,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:03:04,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:03:04,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:03:04,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:03:04,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04" (1/1) ... [2021-12-06 21:03:04,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:03:04,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:03:04,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 21:03:04,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 21:03:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 21:03:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 21:03:04,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:03:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:03:04,626 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:03:04,627 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:03:10,525 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:03:10,530 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:03:10,530 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 21:03:10,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:03:10 BoogieIcfgContainer [2021-12-06 21:03:10,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:03:10,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 21:03:10,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 21:03:10,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 21:03:10,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 09:03:04" (1/3) ... [2021-12-06 21:03:10,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75aeef6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:03:10, skipping insertion in model container [2021-12-06 21:03:10,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:03:04" (2/3) ... [2021-12-06 21:03:10,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75aeef6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:03:10, skipping insertion in model container [2021-12-06 21:03:10,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:03:10" (3/3) ... [2021-12-06 21:03:10,538 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_7.i [2021-12-06 21:03:10,541 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 21:03:10,542 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 21:03:10,574 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 21:03:10,579 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 [2021-12-06 21:03:10,579 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-06 21:03:10,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:10,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 21:03:10,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:03:10,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:03:10,593 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:03:10,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:03:10,597 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2021-12-06 21:03:10,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 21:03:10,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166647473] [2021-12-06 21:03:10,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:03:10,606 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 21:03:10,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 21:03:10,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 21:03:10,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 21:03:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:03:11,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 21:03:11,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:03:11,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:03:11,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 21:03:11,744 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 21:03:11,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166647473] [2021-12-06 21:03:11,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166647473] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:03:11,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:03:11,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 21:03:11,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879721109] [2021-12-06 21:03:11,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:03:11,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 21:03:11,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 21:03:11,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 21:03:11,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 21:03:11,774 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:11,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:03:11,785 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2021-12-06 21:03:11,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 21:03:11,786 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-06 21:03:11,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 21:03:11,792 INFO L225 Difference]: With dead ends: 46 [2021-12-06 21:03:11,792 INFO L226 Difference]: Without dead ends: 19 [2021-12-06 21:03:11,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 21:03:11,797 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 21:03:11,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 21:03:11,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-06 21:03:11,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-06 21:03:11,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:11,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-12-06 21:03:11,820 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2021-12-06 21:03:11,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 21:03:11,820 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-12-06 21:03:11,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:03:11,821 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-12-06 21:03:11,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 21:03:11,821 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:03:11,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:03:11,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 21:03:12,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 21:03:12,023 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:03:12,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:03:12,024 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2021-12-06 21:03:12,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 21:03:12,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406734868] [2021-12-06 21:03:12,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:03:12,026 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 21:03:12,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 21:03:12,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 21:03:12,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 21:03:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:03:16,400 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:05:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:05:09,649 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-06 21:05:09,649 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 21:05:09,650 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-06 21:05:09,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-06 21:05:09,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-06 21:05:09,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 21:05:09,866 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 21:05:09,875 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 21:05:09,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 09:05:09 BoogieIcfgContainer [2021-12-06 21:05:09,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 21:05:09,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 21:05:09,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 21:05:09,915 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 21:05:09,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:03:10" (3/4) ... [2021-12-06 21:05:09,916 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 21:05:09,947 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 21:05:09,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 21:05:09,948 INFO L158 Benchmark]: Toolchain (without parser) took 125705.09ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.5MB in the beginning and 37.7MB in the end (delta: -3.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-12-06 21:05:09,948 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:05:09,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.81ms. Allocated memory is still 56.6MB. Free memory was 34.3MB in the beginning and 38.0MB in the end (delta: -3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 21:05:09,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.96ms. Allocated memory is still 56.6MB. Free memory was 38.0MB in the beginning and 36.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:05:09,950 INFO L158 Benchmark]: Boogie Preprocessor took 27.52ms. Allocated memory is still 56.6MB. Free memory was 36.2MB in the beginning and 34.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:05:09,950 INFO L158 Benchmark]: RCFGBuilder took 6022.29ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 37.5MB in the end (delta: -2.8MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-12-06 21:05:09,951 INFO L158 Benchmark]: TraceAbstraction took 119380.83ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 37.1MB in the beginning and 39.5MB in the end (delta: -2.4MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2021-12-06 21:05:09,951 INFO L158 Benchmark]: Witness Printer took 32.74ms. Allocated memory is still 69.2MB. Free memory was 39.5MB in the beginning and 37.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:05:09,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.81ms. Allocated memory is still 56.6MB. Free memory was 34.3MB in the beginning and 38.0MB in the end (delta: -3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.96ms. Allocated memory is still 56.6MB. Free memory was 38.0MB in the beginning and 36.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.52ms. Allocated memory is still 56.6MB. Free memory was 36.2MB in the beginning and 34.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6022.29ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 37.5MB in the end (delta: -2.8MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 119380.83ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 37.1MB in the beginning and 39.5MB in the end (delta: -2.4MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Witness Printer took 32.74ms. Allocated memory is still 69.2MB. Free memory was 39.5MB in the beginning and 37.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.3358972072601318, \result=-0.9755142331123352, x=-1.3358972072601318] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.3358972072601318, \result=0.24828653037548065, x=-1.3358972072601318] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-1.3358972072601318, x=2.5930886268615723] [L102] reach_error() VAL [IN=-1.3358972072601318, x=2.5930886268615723] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 119.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 5.4s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 1 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 proved your program to be incorrect! [2021-12-06 21:05:10,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d33135bd-0355-44ec-bbda-f6929b8249e8/bin/uautomizer-DrprNOufMa/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE