./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1391bee0bb5d7f50dd16d284fbfd81fef460a2ec12522be9e9c3c85276cf79aa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:21,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:21,569 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:27:21,574 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:21,575 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:21,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:21,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:21,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:21,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:21,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:21,604 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:21,605 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:21,605 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:21,606 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:27:21,606 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:21,607 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:21,607 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:27:21,608 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:27:21,608 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:21,609 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:27:21,610 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:27:21,610 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:27:21,611 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:21,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:27:21,612 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:27:21,613 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:27:21,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:27:21,614 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:21,614 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:27:21,615 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:21,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:27:21,616 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:27:21,616 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:27:21,617 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:21,617 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:21,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:21,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:21,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:21,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:21,632 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:21,632 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:27:21,633 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:27:21,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:27:21,633 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:21,634 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:27:21,634 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:21,634 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:21,634 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1391bee0bb5d7f50dd16d284fbfd81fef460a2ec12522be9e9c3c85276cf79aa [2023-11-23 21:27:21,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:21,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:21,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:21,977 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:21,978 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:21,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/loop-industry-pattern/ofuf_3.c [2023-11-23 21:27:25,085 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:25,374 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:25,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/sv-benchmarks/c/loop-industry-pattern/ofuf_3.c [2023-11-23 21:27:25,394 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/data/c6790e462/80c1e40d544a4236a13caca1fd700048/FLAG685003d2c [2023-11-23 21:27:25,411 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/data/c6790e462/80c1e40d544a4236a13caca1fd700048 [2023-11-23 21:27:25,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:25,421 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:25,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:25,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:25,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:25,432 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:25,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65680f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25, skipping insertion in model container [2023-11-23 21:27:25,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:25,498 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:25,836 WARN L240 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_71682de7-6ab9-49d8-90a3-acfe4e21df4e/sv-benchmarks/c/loop-industry-pattern/ofuf_3.c[11322,11335] [2023-11-23 21:27:25,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:25,858 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:25,948 WARN L240 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_71682de7-6ab9-49d8-90a3-acfe4e21df4e/sv-benchmarks/c/loop-industry-pattern/ofuf_3.c[11322,11335] [2023-11-23 21:27:25,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:25,975 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:27:25,984 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:25,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25 WrapperNode [2023-11-23 21:27:25,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:25,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:25,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:25,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:25,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:26,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:26,105 INFO L138 Inliner]: procedures = 29, calls = 156, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 446 [2023-11-23 21:27:26,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:26,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:26,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:26,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:26,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:26,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:26,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:26,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:26,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:26,155 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:26,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:26,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:26,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:26,171 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:26,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:26,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:26,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25" (1/1) ... [2023-11-23 21:27:26,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:26,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:26,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:26,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:27:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2023-11-23 21:27:26,270 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2023-11-23 21:27:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:27:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:27:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:27:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:27:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:27:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-23 21:27:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:27:26,272 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2023-11-23 21:27:26,272 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2023-11-23 21:27:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:27:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2023-11-23 21:27:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2023-11-23 21:27:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:27:26,451 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:26,454 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:27:27,218 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:27:27,490 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:27:27,490 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-23 21:27:27,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:27 BoogieIcfgContainer [2023-11-23 21:27:27,493 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:27:27,496 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:27:27,496 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:27:27,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:27:27,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:27:25" (1/3) ... [2023-11-23 21:27:27,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218fad8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:27, skipping insertion in model container [2023-11-23 21:27:27,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:25" (2/3) ... [2023-11-23 21:27:27,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218fad8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:27, skipping insertion in model container [2023-11-23 21:27:27,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:27" (3/3) ... [2023-11-23 21:27:27,505 INFO L112 eAbstractionObserver]: Analyzing ICFG ofuf_3.c [2023-11-23 21:27:27,530 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:27:27,530 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:27:27,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:27:27,606 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6bb60c4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:27:27,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:27:27,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 48 states have (on average 1.5833333333333333) internal successors, (76), 49 states have internal predecessors, (76), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:27:27,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 21:27:27,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:27,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:27:27,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:27:27,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:27,632 INFO L85 PathProgramCache]: Analyzing trace with hash 99473596, now seen corresponding path program 1 times [2023-11-23 21:27:27,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:27:27,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706219561] [2023-11-23 21:27:27,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:27,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:27:27,889 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:27:27,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939539551] [2023-11-23 21:27:27,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:27,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:27:27,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:27,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:27:27,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:27:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:28,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:27:28,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:27:28,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:27:28,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:27:28,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706219561] [2023-11-23 21:27:28,215 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:27:28,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939539551] [2023-11-23 21:27:28,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939539551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:28,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:28,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:27:28,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097100185] [2023-11-23 21:27:28,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:28,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:27:28,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:27:28,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:27:28,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:27:28,260 INFO L87 Difference]: Start difference. First operand has 61 states, 48 states have (on average 1.5833333333333333) internal successors, (76), 49 states have internal predecessors, (76), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:27:28,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:27:28,355 INFO L93 Difference]: Finished difference Result 116 states and 181 transitions. [2023-11-23 21:27:28,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:27:28,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-23 21:27:28,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:27:28,364 INFO L225 Difference]: With dead ends: 116 [2023-11-23 21:27:28,364 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:27:28,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:27:28,378 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 1 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:27:28,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 140 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:27:28,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:27:28,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:27:28,405 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) [2023-11-23 21:27:28,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:27:28,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2023-11-23 21:27:28,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:27:28,407 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:27:28,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:27:28,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:27:28,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:27:28,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:27:28,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:27:28,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:27:28,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:27:28,685 INFO L899 garLoopResultBuilder]: For program point L226-1(lines 226 233) no Hoare annotation was computed. [2023-11-23 21:27:28,685 INFO L902 garLoopResultBuilder]: At program point L226-3(lines 226 233) the Hoare annotation is: true [2023-11-23 21:27:28,686 INFO L899 garLoopResultBuilder]: For program point L226-4(lines 226 233) no Hoare annotation was computed. [2023-11-23 21:27:28,686 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 208) no Hoare annotation was computed. [2023-11-23 21:27:28,686 INFO L899 garLoopResultBuilder]: For program point L202-2(lines 194 248) no Hoare annotation was computed. [2023-11-23 21:27:28,687 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_89FINAL(lines 193 248) no Hoare annotation was computed. [2023-11-23 21:27:28,688 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 193 248) the Hoare annotation is: true [2023-11-23 21:27:28,688 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 207) no Hoare annotation was computed. [2023-11-23 21:27:28,689 INFO L899 garLoopResultBuilder]: For program point L229(lines 229 232) no Hoare annotation was computed. [2023-11-23 21:27:28,689 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_89EXIT(lines 193 248) no Hoare annotation was computed. [2023-11-23 21:27:28,689 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 201) no Hoare annotation was computed. [2023-11-23 21:27:28,690 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 464) no Hoare annotation was computed. [2023-11-23 21:27:28,696 INFO L899 garLoopResultBuilder]: For program point L461-2(lines 459 466) no Hoare annotation was computed. [2023-11-23 21:27:28,696 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 295) no Hoare annotation was computed. [2023-11-23 21:27:28,696 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 269) no Hoare annotation was computed. [2023-11-23 21:27:28,696 INFO L899 garLoopResultBuilder]: For program point L288-2(lines 288 295) no Hoare annotation was computed. [2023-11-23 21:27:28,697 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 287) no Hoare annotation was computed. [2023-11-23 21:27:28,697 INFO L902 garLoopResultBuilder]: At program point L272(line 272) the Hoare annotation is: true [2023-11-23 21:27:28,697 INFO L899 garLoopResultBuilder]: For program point L272-1(line 272) no Hoare annotation was computed. [2023-11-23 21:27:28,697 INFO L902 garLoopResultBuilder]: At program point L297(line 297) the Hoare annotation is: true [2023-11-23 21:27:28,697 INFO L899 garLoopResultBuilder]: For program point L297-1(line 297) no Hoare annotation was computed. [2023-11-23 21:27:28,697 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_92_returnLabel#1(lines 249 279) no Hoare annotation was computed. [2023-11-23 21:27:28,698 INFO L899 garLoopResultBuilder]: For program point L463(line 463) no Hoare annotation was computed. [2023-11-23 21:27:28,699 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_95EXIT(lines 280 299) no Hoare annotation was computed. [2023-11-23 21:27:28,699 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 280 299) the Hoare annotation is: true [2023-11-23 21:27:28,699 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION(line 463) no Hoare annotation was computed. [2023-11-23 21:27:28,700 INFO L899 garLoopResultBuilder]: For program point L261(lines 261 269) no Hoare annotation was computed. [2023-11-23 21:27:28,700 INFO L902 garLoopResultBuilder]: At program point L290(line 290) the Hoare annotation is: true [2023-11-23 21:27:28,700 INFO L899 garLoopResultBuilder]: For program point L290-1(line 290) no Hoare annotation was computed. [2023-11-23 21:27:28,700 INFO L902 garLoopResultBuilder]: At program point L270-1(lines 270 277) the Hoare annotation is: true [2023-11-23 21:27:28,701 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_95FINAL(lines 280 299) no Hoare annotation was computed. [2023-11-23 21:27:28,701 INFO L899 garLoopResultBuilder]: For program point L308-1(lines 308 315) no Hoare annotation was computed. [2023-11-23 21:27:28,701 INFO L902 garLoopResultBuilder]: At program point L308-3(lines 308 315) the Hoare annotation is: true [2023-11-23 21:27:28,702 INFO L899 garLoopResultBuilder]: For program point L308-4(lines 308 315) no Hoare annotation was computed. [2023-11-23 21:27:28,702 INFO L902 garLoopResultBuilder]: At program point L358-3(lines 358 396) the Hoare annotation is: true [2023-11-23 21:27:28,702 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2023-11-23 21:27:28,703 INFO L902 garLoopResultBuilder]: At program point L376-3(lines 376 393) the Hoare annotation is: true [2023-11-23 21:27:28,704 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:27:28,704 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_96_returnLabel#1(lines 300 330) no Hoare annotation was computed. [2023-11-23 21:27:28,704 INFO L902 garLoopResultBuilder]: At program point L352-3(lines 352 355) the Hoare annotation is: true [2023-11-23 21:27:28,705 INFO L899 garLoopResultBuilder]: For program point L352-4(lines 332 399) no Hoare annotation was computed. [2023-11-23 21:27:28,706 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 314) no Hoare annotation was computed. [2023-11-23 21:27:28,707 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 458) no Hoare annotation was computed. [2023-11-23 21:27:28,710 INFO L902 garLoopResultBuilder]: At program point L361(line 361) the Hoare annotation is: true [2023-11-23 21:27:28,711 INFO L899 garLoopResultBuilder]: For program point L361-1(lines 361 364) no Hoare annotation was computed. [2023-11-23 21:27:28,711 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 455) no Hoare annotation was computed. [2023-11-23 21:27:28,711 INFO L902 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: true [2023-11-23 21:27:28,711 INFO L899 garLoopResultBuilder]: For program point L378-1(lines 378 381) no Hoare annotation was computed. [2023-11-23 21:27:28,712 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 307) no Hoare annotation was computed. [2023-11-23 21:27:28,713 INFO L902 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: true [2023-11-23 21:27:28,713 INFO L899 garLoopResultBuilder]: For program point L371-1(lines 371 374) no Hoare annotation was computed. [2023-11-23 21:27:28,714 INFO L899 garLoopResultBuilder]: For program point Id_MCDC_97_returnLabel#1(lines 331 399) no Hoare annotation was computed. [2023-11-23 21:27:28,718 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:27:28,718 INFO L899 garLoopResultBuilder]: For program point L389(lines 389 392) no Hoare annotation was computed. [2023-11-23 21:27:28,718 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 397) no Hoare annotation was computed. [2023-11-23 21:27:28,718 INFO L902 garLoopResultBuilder]: At program point L406-3(lines 406 416) the Hoare annotation is: true [2023-11-23 21:27:28,719 INFO L902 garLoopResultBuilder]: At program point L406-4(lines 406 416) the Hoare annotation is: true [2023-11-23 21:27:28,719 INFO L902 garLoopResultBuilder]: At program point L365(line 365) the Hoare annotation is: true [2023-11-23 21:27:28,719 INFO L899 garLoopResultBuilder]: For program point L365-1(lines 365 368) no Hoare annotation was computed. [2023-11-23 21:27:28,719 INFO L899 garLoopResultBuilder]: For program point avoid_zeroEXIT(lines 9 15) no Hoare annotation was computed. [2023-11-23 21:27:28,719 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9 15) the Hoare annotation is: true [2023-11-23 21:27:28,723 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:27:28,726 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:27:28,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:27:28 BoogieIcfgContainer [2023-11-23 21:27:28,744 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:27:28,745 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:27:28,745 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:27:28,745 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:27:28,746 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:27" (3/4) ... [2023-11-23 21:27:28,748 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:27:28,751 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_89 [2023-11-23 21:27:28,752 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure avoid_zero [2023-11-23 21:27:28,752 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2023-11-23 21:27:28,764 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 88 nodes and edges [2023-11-23 21:27:28,766 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2023-11-23 21:27:28,767 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-23 21:27:28,768 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 21:27:28,770 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:27:28,771 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:27:28,920 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:27:28,920 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:27:28,920 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:27:28,921 INFO L158 Benchmark]: Toolchain (without parser) took 3500.03ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 83.8MB in the beginning and 99.1MB in the end (delta: -15.3MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2023-11-23 21:27:28,921 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:28,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.42ms. Allocated memory is still 119.5MB. Free memory was 83.5MB in the beginning and 65.7MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 21:27:28,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.52ms. Allocated memory is still 119.5MB. Free memory was 65.7MB in the beginning and 62.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:27:28,923 INFO L158 Benchmark]: Boogie Preprocessor took 64.19ms. Allocated memory is still 119.5MB. Free memory was 62.2MB in the beginning and 58.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:27:28,923 INFO L158 Benchmark]: RCFGBuilder took 1321.65ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 58.6MB in the beginning and 107.9MB in the end (delta: -49.3MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2023-11-23 21:27:28,924 INFO L158 Benchmark]: TraceAbstraction took 1248.24ms. Allocated memory is still 146.8MB. Free memory was 107.9MB in the beginning and 109.6MB in the end (delta: -1.7MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2023-11-23 21:27:28,924 INFO L158 Benchmark]: Witness Printer took 175.93ms. Allocated memory is still 146.8MB. Free memory was 109.6MB in the beginning and 99.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:27:28,926 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.42ms. Allocated memory is still 119.5MB. Free memory was 83.5MB in the beginning and 65.7MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.52ms. Allocated memory is still 119.5MB. Free memory was 65.7MB in the beginning and 62.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.19ms. Allocated memory is still 119.5MB. Free memory was 62.2MB in the beginning and 58.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1321.65ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 58.6MB in the beginning and 107.9MB in the end (delta: -49.3MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1248.24ms. Allocated memory is still 146.8MB. Free memory was 107.9MB in the beginning and 109.6MB in the end (delta: -1.7MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. * Witness Printer took 175.93ms. Allocated memory is still 146.8MB. Free memory was 109.6MB in the beginning and 99.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. 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: 463]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 71 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 50 PreInvPairs, 65 NumberOfFragments, 18 HoareAnnotationTreeSize, 50 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 1 NumberOfNonLiveVariables, 370 ConjunctsInSsa, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-23 21:27:28,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71682de7-6ab9-49d8-90a3-acfe4e21df4e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE