./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_poly.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_poly.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc --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 9ff417092ff6ab1dae16b3d719851bc30771c0c1117076f87d0e779624eadca8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:56:02,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:56:02,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:56:02,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:56:02,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:56:02,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:56:02,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:56:02,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:56:02,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:56:02,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:56:02,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:56:02,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:56:02,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:56:02,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:56:02,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:56:02,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:56:02,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:56:02,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:56:02,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:56:02,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:56:02,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:56:02,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:56:02,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:56:02,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:56:02,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:56:02,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:56:02,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:56:02,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:56:02,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:56:02,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:56:02,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:56:02,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:56:02,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:56:02,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:56:02,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:56:02,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:56:02,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:56:02,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:56:02,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:56:02,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:56:02,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:56:02,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:56:02,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:56:02,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:56:02,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:56:02,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:56:02,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:56:02,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:56:02,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:56:02,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:56:02,460 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:56:02,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:56:02,461 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:56:02,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:56:02,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:56:02,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:56:02,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:56:02,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:56:02,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:56:02,463 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:56:02,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:56:02,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:56:02,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:56:02,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:56:02,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:56:02,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:56:02,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:56:02,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:56:02,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:56:02,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:56:02,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:56:02,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:56:02,466 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:56:02,466 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:56:02,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:56:02,466 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_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ff417092ff6ab1dae16b3d719851bc30771c0c1117076f87d0e779624eadca8 [2022-11-02 20:56:02,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:56:02,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:56:02,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:56:02,808 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:56:02,808 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:56:02,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/float-benchs/sqrt_poly.c [2022-11-02 20:56:02,905 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/data/729c1d1f8/e04f4218e08741fdaf8cba94d8ee7a7a/FLAGf38364970 [2022-11-02 20:56:03,365 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:56:03,366 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/sv-benchmarks/c/float-benchs/sqrt_poly.c [2022-11-02 20:56:03,373 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/data/729c1d1f8/e04f4218e08741fdaf8cba94d8ee7a7a/FLAGf38364970 [2022-11-02 20:56:03,765 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/data/729c1d1f8/e04f4218e08741fdaf8cba94d8ee7a7a [2022-11-02 20:56:03,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:56:03,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:56:03,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:56:03,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:56:03,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:56:03,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:03" (1/1) ... [2022-11-02 20:56:03,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@509b59e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:03, skipping insertion in model container [2022-11-02 20:56:03,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:03" (1/1) ... [2022-11-02 20:56:03,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:56:03,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:56:04,082 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_275ca850-0bbf-47e2-9b7d-75c3c804bc47/sv-benchmarks/c/float-benchs/sqrt_poly.c[671,684] [2022-11-02 20:56:04,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:56:04,111 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:56:04,125 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_275ca850-0bbf-47e2-9b7d-75c3c804bc47/sv-benchmarks/c/float-benchs/sqrt_poly.c[671,684] [2022-11-02 20:56:04,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:56:04,151 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:56:04,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04 WrapperNode [2022-11-02 20:56:04,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:56:04,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:56:04,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:56:04,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:56:04,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04" (1/1) ... [2022-11-02 20:56:04,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04" (1/1) ... [2022-11-02 20:56:04,194 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2022-11-02 20:56:04,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:56:04,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:56:04,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:56:04,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:56:04,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04" (1/1) ... [2022-11-02 20:56:04,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04" (1/1) ... [2022-11-02 20:56:04,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04" (1/1) ... [2022-11-02 20:56:04,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04" (1/1) ... [2022-11-02 20:56:04,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04" (1/1) ... [2022-11-02 20:56:04,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04" (1/1) ... [2022-11-02 20:56:04,224 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04" (1/1) ... [2022-11-02 20:56:04,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04" (1/1) ... [2022-11-02 20:56:04,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:56:04,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:56:04,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:56:04,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:56:04,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04" (1/1) ... [2022-11-02 20:56:04,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:56:04,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:04,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:56:04,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:56:04,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:56:04,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:56:04,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:56:04,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:56:04,360 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:56:04,363 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:56:04,463 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:56:04,468 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:56:04,469 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:56:04,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:04 BoogieIcfgContainer [2022-11-02 20:56:04,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:56:04,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:56:04,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:56:04,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:56:04,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:56:03" (1/3) ... [2022-11-02 20:56:04,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffc73b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:56:04, skipping insertion in model container [2022-11-02 20:56:04,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:04" (2/3) ... [2022-11-02 20:56:04,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffc73b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:56:04, skipping insertion in model container [2022-11-02 20:56:04,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:04" (3/3) ... [2022-11-02 20:56:04,480 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly.c [2022-11-02 20:56:04,497 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:56:04,497 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:56:04,544 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:56:04,550 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@50b099f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:56:04,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:56:04,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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) [2022-11-02 20:56:04,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 20:56:04,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:04,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:04,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:04,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:04,576 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2022-11-02 20:56:04,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:04,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75111750] [2022-11-02 20:56:04,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:04,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:04,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:04,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:56:04,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75111750] [2022-11-02 20:56:04,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75111750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:04,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:04,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:04,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840293958] [2022-11-02 20:56:04,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:04,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:56:04,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:56:04,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:56:04,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:56:04,856 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-02 20:56:04,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:04,870 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-11-02 20:56:04,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:56:04,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-11-02 20:56:04,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:04,881 INFO L225 Difference]: With dead ends: 23 [2022-11-02 20:56:04,881 INFO L226 Difference]: Without dead ends: 9 [2022-11-02 20:56:04,884 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:56:04,889 INFO L413 NwaCegarLoop]: 13 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, 13 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 [2022-11-02 20:56:04,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:56:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-02 20:56:04,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-02 20:56:04,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2022-11-02 20:56:04,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-02 20:56:04,923 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2022-11-02 20:56:04,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:04,923 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-02 20:56:04,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-02 20:56:04,924 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-02 20:56:04,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 20:56:04,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:04,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:04,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:56:04,926 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:04,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:04,927 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2022-11-02 20:56:04,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:56:04,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191416602] [2022-11-02 20:56:04,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:04,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:56:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:56:04,972 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:56:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:56:05,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:56:05,033 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:56:05,035 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:56:05,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:56:05,040 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-02 20:56:05,046 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:56:05,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:56:05 BoogieIcfgContainer [2022-11-02 20:56:05,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:56:05,082 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:56:05,082 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:56:05,083 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:56:05,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:04" (3/4) ... [2022-11-02 20:56:05,087 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:56:05,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:56:05,090 INFO L158 Benchmark]: Toolchain (without parser) took 1316.65ms. Allocated memory is still 121.6MB. Free memory was 87.1MB in the beginning and 60.9MB in the end (delta: 26.3MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2022-11-02 20:56:05,090 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 79.7MB. Free memory was 36.4MB in the beginning and 36.3MB in the end (delta: 40.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:56:05,092 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.08ms. Allocated memory is still 121.6MB. Free memory was 86.9MB in the beginning and 96.3MB in the end (delta: -9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:56:05,095 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.47ms. Allocated memory is still 121.6MB. Free memory was 96.3MB in the beginning and 94.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:56:05,096 INFO L158 Benchmark]: Boogie Preprocessor took 31.93ms. Allocated memory is still 121.6MB. Free memory was 94.9MB in the beginning and 93.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:56:05,099 INFO L158 Benchmark]: RCFGBuilder took 243.19ms. Allocated memory is still 121.6MB. Free memory was 93.9MB in the beginning and 84.9MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:56:05,099 INFO L158 Benchmark]: TraceAbstraction took 608.59ms. Allocated memory is still 121.6MB. Free memory was 83.9MB in the beginning and 61.3MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-02 20:56:05,099 INFO L158 Benchmark]: Witness Printer took 5.91ms. Allocated memory is still 121.6MB. Free memory was 61.3MB in the beginning and 60.9MB in the end (delta: 480.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:56:05,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 79.7MB. Free memory was 36.4MB in the beginning and 36.3MB in the end (delta: 40.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.08ms. Allocated memory is still 121.6MB. Free memory was 86.9MB in the beginning and 96.3MB in the end (delta: -9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.47ms. Allocated memory is still 121.6MB. Free memory was 96.3MB in the beginning and 94.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.93ms. Allocated memory is still 121.6MB. Free memory was 94.9MB in the beginning and 93.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 243.19ms. Allocated memory is still 121.6MB. Free memory was 93.9MB in the beginning and 84.9MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 608.59ms. Allocated memory is still 121.6MB. Free memory was 83.9MB in the beginning and 61.3MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 5.91ms. Allocated memory is still 121.6MB. Free memory was 61.3MB in the beginning and 60.9MB in the end (delta: 480.3kB). 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: 16]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 30, overapproximation of someBinaryArithmeticDOUBLEoperation at line 27. Possible FailurePath: [L18] double sqrt2 = 1.414213538169860839843750; VAL [sqrt2=11863283/8388608] [L22] double S, I; [L24] I = __VERIFIER_nondet_double() [L25] CALL assume_abort_if_not(I >= 1. && I <= 3.) [L14] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, sqrt2=11863283/8388608] [L25] RET assume_abort_if_not(I >= 1. && I <= 3.) [L27] COND TRUE I >= 2. [L27] S = sqrt2 * (1.+(I/2.- 1.)*(.5-0.125*(I/2.-1.))) VAL [sqrt2=11863283/8388608] [L30] CALL __VERIFIER_assert(S >= 1. && S <= 2.) [L16] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, sqrt2=11863283/8388608] [L16] reach_error() VAL [\old(cond)=0, cond=0, sqrt2=11863283/8388608] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 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, 13 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=13occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2022-11-02 20:56:05,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_poly.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc --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 9ff417092ff6ab1dae16b3d719851bc30771c0c1117076f87d0e779624eadca8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:56:07,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:56:07,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:56:07,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:56:07,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:56:07,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:56:07,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:56:07,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:56:07,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:56:07,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:56:07,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:56:07,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:56:07,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:56:07,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:56:07,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:56:07,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:56:07,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:56:07,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:56:07,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:56:07,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:56:07,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:56:07,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:56:07,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:56:07,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:56:07,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:56:07,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:56:07,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:56:07,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:56:07,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:56:07,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:56:07,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:56:07,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:56:07,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:56:07,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:56:07,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:56:07,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:56:07,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:56:07,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:56:07,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:56:07,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:56:07,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:56:07,713 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-02 20:56:07,755 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:56:07,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:56:07,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:56:07,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:56:07,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:56:07,758 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:56:07,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:56:07,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:56:07,760 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:56:07,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:56:07,761 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:56:07,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:56:07,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:56:07,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:56:07,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:56:07,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:56:07,763 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:56:07,763 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:56:07,763 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:56:07,763 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:56:07,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:56:07,764 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:56:07,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:56:07,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:56:07,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:56:07,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:56:07,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:56:07,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:56:07,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:56:07,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:56:07,766 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:56:07,766 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:56:07,767 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:56:07,767 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:56:07,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:56:07,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:56:07,768 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_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ff417092ff6ab1dae16b3d719851bc30771c0c1117076f87d0e779624eadca8 [2022-11-02 20:56:08,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:56:08,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:56:08,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:56:08,194 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:56:08,194 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:56:08,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/float-benchs/sqrt_poly.c [2022-11-02 20:56:08,256 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/data/24e082118/dd781195aa2349c1a89155c01630b8ec/FLAG3f1b441b4 [2022-11-02 20:56:08,781 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:56:08,781 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/sv-benchmarks/c/float-benchs/sqrt_poly.c [2022-11-02 20:56:08,788 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/data/24e082118/dd781195aa2349c1a89155c01630b8ec/FLAG3f1b441b4 [2022-11-02 20:56:09,148 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/data/24e082118/dd781195aa2349c1a89155c01630b8ec [2022-11-02 20:56:09,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:56:09,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:56:09,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:56:09,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:56:09,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:56:09,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3b0e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09, skipping insertion in model container [2022-11-02 20:56:09,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:56:09,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:56:09,367 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_275ca850-0bbf-47e2-9b7d-75c3c804bc47/sv-benchmarks/c/float-benchs/sqrt_poly.c[671,684] [2022-11-02 20:56:09,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:56:09,391 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:56:09,412 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_275ca850-0bbf-47e2-9b7d-75c3c804bc47/sv-benchmarks/c/float-benchs/sqrt_poly.c[671,684] [2022-11-02 20:56:09,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:56:09,459 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:56:09,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09 WrapperNode [2022-11-02 20:56:09,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:56:09,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:56:09,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:56:09,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:56:09,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,495 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2022-11-02 20:56:09,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:56:09,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:56:09,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:56:09,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:56:09,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,518 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:56:09,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:56:09,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:56:09,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:56:09,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09" (1/1) ... [2022-11-02 20:56:09,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:56:09,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:09,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:56:09,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:56:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:56:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 20:56:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:56:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:56:09,700 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:56:09,702 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:56:14,156 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:56:14,161 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:56:14,162 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:56:14,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:14 BoogieIcfgContainer [2022-11-02 20:56:14,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:56:14,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:56:14,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:56:14,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:56:14,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:56:09" (1/3) ... [2022-11-02 20:56:14,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629e0ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:56:14, skipping insertion in model container [2022-11-02 20:56:14,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:09" (2/3) ... [2022-11-02 20:56:14,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629e0ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:56:14, skipping insertion in model container [2022-11-02 20:56:14,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:14" (3/3) ... [2022-11-02 20:56:14,173 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly.c [2022-11-02 20:56:14,193 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:56:14,193 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:56:14,243 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:56:14,250 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@612c8f40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:56:14,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:56:14,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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) [2022-11-02 20:56:14,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 20:56:14,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:14,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:14,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:14,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:14,268 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2022-11-02 20:56:14,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:56:14,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001411228] [2022-11-02 20:56:14,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:14,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:56:14,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:56:14,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:56:14,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:56:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:15,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-02 20:56:15,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:56:15,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:56:15,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:56:15,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001411228] [2022-11-02 20:56:15,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001411228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:56:15,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:56:15,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:56:15,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306995708] [2022-11-02 20:56:15,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:56:15,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:56:15,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:56:15,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:56:15,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:56:15,266 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-02 20:56:15,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:56:15,280 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-11-02 20:56:15,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:56:15,283 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-11-02 20:56:15,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:56:15,291 INFO L225 Difference]: With dead ends: 23 [2022-11-02 20:56:15,291 INFO L226 Difference]: Without dead ends: 9 [2022-11-02 20:56:15,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:56:15,298 INFO L413 NwaCegarLoop]: 13 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, 13 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 [2022-11-02 20:56:15,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:56:15,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-02 20:56:15,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-02 20:56:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2022-11-02 20:56:15,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-02 20:56:15,331 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2022-11-02 20:56:15,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:56:15,331 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-02 20:56:15,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-02 20:56:15,332 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-02 20:56:15,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 20:56:15,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:56:15,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:56:15,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:56:15,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:56:15,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:56:15,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:56:15,535 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2022-11-02 20:56:15,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:56:15,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387084011] [2022-11-02 20:56:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:56:15,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:56:15,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:56:15,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:56:15,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:56:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:56:17,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:56:17,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:56:34,074 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |ULTIMATE.start_main_~I~0#1| ((_ to_fp 11 53) c_currentRoundingMode 3.0)) (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (= |c_ULTIMATE.start_main_~S~0#1| (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 11863283.0 8388608.0)) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (fp.add c_currentRoundingMode .cse1 (let ((.cse2 (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode |ULTIMATE.start_main_~I~0#1| .cse0) .cse1))) (fp.mul c_currentRoundingMode .cse2 (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 8.0)) .cse2))))))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-02 20:57:28,173 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 3.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11863283.0 8388608.0))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0))) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 8.0))) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (and (or (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~I~0#1| .cse1) (not (fp.leq (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven .cse3 (let ((.cse4 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0) .cse3))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse5 (fp.mul roundNearestTiesToEven .cse6 .cse4)))))) .cse0)))) (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~I~0#1| .cse1) (not (fp.geq (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven .cse3 (let ((.cse7 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0) .cse3))) (fp.mul roundNearestTiesToEven .cse7 (fp.sub roundNearestTiesToEven .cse5 (fp.mul roundNearestTiesToEven .cse6 .cse7)))))) .cse3))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (and (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (let ((.cse8 (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven .cse3 (let ((.cse9 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0) .cse3))) (fp.mul roundNearestTiesToEven .cse9 (fp.sub roundNearestTiesToEven .cse5 (fp.mul roundNearestTiesToEven .cse6 .cse9)))))))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~I~0#1| .cse1) (fp.geq .cse8 .cse3) (fp.leq .cse8 .cse0)))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))))) is different from false [2022-11-02 20:58:00,524 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 3.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11863283.0 8388608.0))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0))) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 8.0))) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~I~0#1| .cse1) (not (fp.leq (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven .cse3 (let ((.cse4 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0) .cse3))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse5 (fp.mul roundNearestTiesToEven .cse6 .cse4)))))) .cse0)))) (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~I~0#1| .cse1) (not (fp.geq (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven .cse3 (let ((.cse7 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0) .cse3))) (fp.mul roundNearestTiesToEven .cse7 (fp.sub roundNearestTiesToEven .cse5 (fp.mul roundNearestTiesToEven .cse6 .cse7)))))) .cse3)))))) is different from false [2022-11-02 20:58:02,616 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 3.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11863283.0 8388608.0))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0))) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 8.0))) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~I~0#1| .cse1) (not (fp.leq (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven .cse3 (let ((.cse4 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0) .cse3))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse5 (fp.mul roundNearestTiesToEven .cse6 .cse4)))))) .cse0)))) (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~I~0#1| .cse1) (not (fp.geq (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven .cse3 (let ((.cse7 (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0) .cse3))) (fp.mul roundNearestTiesToEven .cse7 (fp.sub roundNearestTiesToEven .cse5 (fp.mul roundNearestTiesToEven .cse6 .cse7)))))) .cse3)))))) is different from true [2022-11-02 20:58:02,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:58:02,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:58:02,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:58:02,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387084011] [2022-11-02 20:58:02,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387084011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:58:02,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:58:02,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:58:02,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121572205] [2022-11-02 20:58:02,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:58:02,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:58:02,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:58:02,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:58:02,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=13, Unknown=4, NotChecked=24, Total=56 [2022-11-02 20:58:02,621 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-11-02 20:58:05,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:58:07,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 20:58:07,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:58:07,844 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-11-02 20:58:07,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:58:07,952 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 8 [2022-11-02 20:58:07,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:58:07,953 INFO L225 Difference]: With dead ends: 13 [2022-11-02 20:58:07,953 INFO L226 Difference]: Without dead ends: 9 [2022-11-02 20:58:07,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=20, Invalid=18, Unknown=4, NotChecked=30, Total=72 [2022-11-02 20:58:07,955 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:58:07,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 8 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 2 Unknown, 14 Unchecked, 4.8s Time] [2022-11-02 20:58:07,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-02 20:58:07,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-02 20:58:07,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2022-11-02 20:58:07,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-11-02 20:58:07,958 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2022-11-02 20:58:07,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:58:07,958 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-11-02 20:58:07,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-11-02 20:58:07,959 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-11-02 20:58:07,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 20:58:07,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:58:07,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:58:07,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:58:08,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:58:08,171 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:58:08,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:58:08,172 INFO L85 PathProgramCache]: Analyzing trace with hash 176701705, now seen corresponding path program 1 times [2022-11-02 20:58:08,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:58:08,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584904343] [2022-11-02 20:58:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:58:08,173 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:58:08,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:58:08,174 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:58:08,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:58:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:58:10,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:58:10,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:58:27,382 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (= |c_ULTIMATE.start_main_~S~0#1| (fp.add c_currentRoundingMode .cse0 (let ((.cse1 (fp.sub c_currentRoundingMode |ULTIMATE.start_main_~I~0#1| .cse0))) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 8.0))) (fp.mul c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 16.0)))))))))) (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (not (fp.geq |ULTIMATE.start_main_~I~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-02 20:59:22,417 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0))) (.cse5 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 8.0)))) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 16.0))) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.add roundNearestTiesToEven .cse0 (let ((.cse3 (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0))) (fp.mul roundNearestTiesToEven .cse3 (fp.add roundNearestTiesToEven .cse4 (fp.mul roundNearestTiesToEven .cse3 (fp.add roundNearestTiesToEven .cse5 (fp.mul roundNearestTiesToEven .cse3 .cse6))))))))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (fp.leq .cse1 .cse2) (fp.geq .cse1 .cse0) (not (fp.geq |ULTIMATE.start_main_~I~0#1| .cse2)))))) (and (or (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (not (fp.geq |ULTIMATE.start_main_~I~0#1| .cse2)) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 (let ((.cse7 (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0))) (fp.mul roundNearestTiesToEven .cse7 (fp.add roundNearestTiesToEven .cse4 (fp.mul roundNearestTiesToEven .cse7 (fp.add roundNearestTiesToEven .cse5 (fp.mul roundNearestTiesToEven .cse7 .cse6))))))) .cse0)))) (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (not (fp.leq (fp.add roundNearestTiesToEven .cse0 (let ((.cse8 (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0))) (fp.mul roundNearestTiesToEven .cse8 (fp.add roundNearestTiesToEven .cse4 (fp.mul roundNearestTiesToEven .cse8 (fp.add roundNearestTiesToEven .cse5 (fp.mul roundNearestTiesToEven .cse8 .cse6))))))) .cse2)) (not (fp.geq |ULTIMATE.start_main_~I~0#1| .cse2))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))))) is different from false [2022-11-02 20:59:55,470 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0))) (.cse4 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 8.0)))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 16.0))) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (or (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (not (fp.geq |ULTIMATE.start_main_~I~0#1| .cse1)) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 (let ((.cse2 (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0))) (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven .cse4 (fp.mul roundNearestTiesToEven .cse2 .cse5))))))) .cse0)))) (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (not (fp.leq (fp.add roundNearestTiesToEven .cse0 (let ((.cse6 (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0))) (fp.mul roundNearestTiesToEven .cse6 (fp.add roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven .cse6 (fp.add roundNearestTiesToEven .cse4 (fp.mul roundNearestTiesToEven .cse6 .cse5))))))) .cse1)) (not (fp.geq |ULTIMATE.start_main_~I~0#1| .cse1)))))) is different from false [2022-11-02 20:59:57,558 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0))) (.cse4 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 8.0)))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 16.0))) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (or (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (not (fp.geq |ULTIMATE.start_main_~I~0#1| .cse1)) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 (let ((.cse2 (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0))) (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven .cse4 (fp.mul roundNearestTiesToEven .cse2 .cse5))))))) .cse0)))) (exists ((|ULTIMATE.start_main_~I~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~I~0#1| .cse0) (not (fp.leq (fp.add roundNearestTiesToEven .cse0 (let ((.cse6 (fp.sub roundNearestTiesToEven |ULTIMATE.start_main_~I~0#1| .cse0))) (fp.mul roundNearestTiesToEven .cse6 (fp.add roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven .cse6 (fp.add roundNearestTiesToEven .cse4 (fp.mul roundNearestTiesToEven .cse6 .cse5))))))) .cse1)) (not (fp.geq |ULTIMATE.start_main_~I~0#1| .cse1)))))) is different from true [2022-11-02 20:59:57,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:59:57,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:59:57,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:59:57,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584904343] [2022-11-02 20:59:57,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584904343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:59:57,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:59:57,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:59:57,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998034030] [2022-11-02 20:59:57,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:59:57,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:59:57,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:59:57,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:59:57,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=13, Unknown=4, NotChecked=24, Total=56 [2022-11-02 20:59:57,562 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-11-02 21:00:00,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-02 21:00:00,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:00:00,408 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-11-02 21:00:00,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:00:00,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 8 [2022-11-02 21:00:00,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:00:00,545 INFO L225 Difference]: With dead ends: 9 [2022-11-02 21:00:00,546 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 21:00:00,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=20, Invalid=18, Unknown=4, NotChecked=30, Total=72 [2022-11-02 21:00:00,547 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:00:00,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 1 Unknown, 13 Unchecked, 2.4s Time] [2022-11-02 21:00:00,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 21:00:00,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 21:00:00,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-02 21:00:00,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 21:00:00,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-02 21:00:00,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:00:00,550 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:00:00,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-11-02 21:00:00,553 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 21:00:00,553 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 21:00:00,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 21:00:00,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:00:00,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:00:00,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-02 21:00:00,767 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-02 21:00:00,767 INFO L902 garLoopResultBuilder]: At program point L31(lines 20 32) the Hoare annotation is: true [2022-11-02 21:00:00,768 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 28) no Hoare annotation was computed. [2022-11-02 21:00:00,768 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 28) no Hoare annotation was computed. [2022-11-02 21:00:00,768 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 15) no Hoare annotation was computed. [2022-11-02 21:00:00,768 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-02 21:00:00,768 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-02 21:00:00,769 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-02 21:00:00,769 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2022-11-02 21:00:00,769 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-11-02 21:00:00,769 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2022-11-02 21:00:00,769 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2022-11-02 21:00:00,770 INFO L902 garLoopResultBuilder]: At program point L16-3(line 16) the Hoare annotation is: true [2022-11-02 21:00:00,773 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-02 21:00:00,776 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:00:00,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:00:00 BoogieIcfgContainer [2022-11-02 21:00:00,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:00:00,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:00:00,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:00:00,784 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:00:00,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:14" (3/4) ... [2022-11-02 21:00:00,788 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 21:00:00,799 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-02 21:00:00,799 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-02 21:00:00,800 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 21:00:00,800 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 21:00:00,830 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:00:00,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:00:00,838 INFO L158 Benchmark]: Toolchain (without parser) took 231677.86ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 58.5MB in the beginning and 34.3MB in the end (delta: 24.2MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2022-11-02 21:00:00,838 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 75.5MB. Free memory was 55.9MB in the beginning and 55.8MB in the end (delta: 113.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:00:00,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.83ms. Allocated memory is still 75.5MB. Free memory was 58.3MB in the beginning and 57.8MB in the end (delta: 516.4kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 21:00:00,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.40ms. Allocated memory is still 75.5MB. Free memory was 57.8MB in the beginning and 56.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:00:00,839 INFO L158 Benchmark]: Boogie Preprocessor took 25.59ms. Allocated memory is still 75.5MB. Free memory was 56.2MB in the beginning and 54.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:00:00,840 INFO L158 Benchmark]: RCFGBuilder took 4641.04ms. Allocated memory is still 75.5MB. Free memory was 54.8MB in the beginning and 45.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 21:00:00,840 INFO L158 Benchmark]: TraceAbstraction took 226617.32ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 44.5MB in the beginning and 36.7MB in the end (delta: 7.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-02 21:00:00,841 INFO L158 Benchmark]: Witness Printer took 47.08ms. Allocated memory is still 92.3MB. Free memory was 36.7MB in the beginning and 34.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:00:00,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 75.5MB. Free memory was 55.9MB in the beginning and 55.8MB in the end (delta: 113.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.83ms. Allocated memory is still 75.5MB. Free memory was 58.3MB in the beginning and 57.8MB in the end (delta: 516.4kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.40ms. Allocated memory is still 75.5MB. Free memory was 57.8MB in the beginning and 56.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.59ms. Allocated memory is still 75.5MB. Free memory was 56.2MB in the beginning and 54.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4641.04ms. Allocated memory is still 75.5MB. Free memory was 54.8MB in the beginning and 45.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 226617.32ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 44.5MB in the beginning and 36.7MB in the end (delta: 7.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 47.08ms. Allocated memory is still 92.3MB. Free memory was 36.7MB in the beginning and 34.3MB in the end (delta: 2.4MB). 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 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 226.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 7.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 7.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 27 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 5.2s SatisfiabilityAnalysisTime, 212.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 6 QuantifiedInterpolants, 1011 SizeOfPredicates, 15 NumberOfNonLiveVariables, 78 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-02 21:00:01,078 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-02 21:00:01,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275ca850-0bbf-47e2-9b7d-75c3c804bc47/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE