./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/psyco/psyco_io_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_io_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f9f01bde8fda2c75630f127009f2a9b60883250862a9d96b52c34a46b69c1e5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:04:35,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:35,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 12:04:35,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:35,182 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:35,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:35,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:35,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:35,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:04:35,219 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:04:35,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:35,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:35,222 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:35,222 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 12:04:35,223 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 12:04:35,224 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 12:04:35,224 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 12:04:35,225 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 12:04:35,225 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 12:04:35,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:35,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 12:04:35,227 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:04:35,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:04:35,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:04:35,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:35,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 12:04:35,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 12:04:35,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 12:04:35,231 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:04:35,231 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:04:35,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:04:35,232 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 12:04:35,233 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:35,233 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:35,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:35,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:35,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:04:35,235 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 12:04:35,236 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f9f01bde8fda2c75630f127009f2a9b60883250862a9d96b52c34a46b69c1e5 [2023-11-26 12:04:35,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:35,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:35,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:35,532 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:35,533 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:35,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/psyco/psyco_io_1.c [2023-11-26 12:04:38,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:39,103 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:39,110 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/sv-benchmarks/c/psyco/psyco_io_1.c [2023-11-26 12:04:39,127 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/data/48f18d7e3/0ac3b946a11b4930b84b0daf725c1b45/FLAG448407c74 [2023-11-26 12:04:39,147 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/data/48f18d7e3/0ac3b946a11b4930b84b0daf725c1b45 [2023-11-26 12:04:39,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:39,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:39,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:39,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:39,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:39,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9ee4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39, skipping insertion in model container [2023-11-26 12:04:39,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,237 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:39,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:39,469 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:04:39,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:39,523 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:04:39,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39 WrapperNode [2023-11-26 12:04:39,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:39,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:39,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:04:39,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:04:39,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,556 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,601 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 259 [2023-11-26 12:04:39,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:39,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:04:39,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:04:39,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:04:39,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,631 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,652 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 12:04:39,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,683 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:04:39,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:04:39,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:04:39,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:04:39,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (1/1) ... [2023-11-26 12:04:39,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:04:39,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:39,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:04:39,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 12:04:39,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:04:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:04:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:04:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:04:39,890 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:04:39,893 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:04:40,275 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:04:40,293 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:04:40,293 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-26 12:04:40,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:40 BoogieIcfgContainer [2023-11-26 12:04:40,308 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:04:40,310 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 12:04:40,310 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 12:04:40,315 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 12:04:40,316 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:04:40,316 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 12:04:39" (1/3) ... [2023-11-26 12:04:40,317 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@797a1a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:04:40, skipping insertion in model container [2023-11-26 12:04:40,318 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:04:40,318 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:39" (2/3) ... [2023-11-26 12:04:40,318 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@797a1a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:04:40, skipping insertion in model container [2023-11-26 12:04:40,319 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:04:40,319 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:40" (3/3) ... [2023-11-26 12:04:40,320 INFO L332 chiAutomizerObserver]: Analyzing ICFG psyco_io_1.c [2023-11-26 12:04:40,388 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 12:04:40,389 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 12:04:40,389 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 12:04:40,389 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 12:04:40,389 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 12:04:40,390 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 12:04:40,390 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 12:04:40,390 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 12:04:40,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.8955223880597014) internal successors, (127), 67 states have internal predecessors, (127), 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) [2023-11-26 12:04:40,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2023-11-26 12:04:40,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:04:40,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:04:40,430 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:04:40,430 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-26 12:04:40,430 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 12:04:40,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.8955223880597014) internal successors, (127), 67 states have internal predecessors, (127), 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) [2023-11-26 12:04:40,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2023-11-26 12:04:40,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:04:40,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:04:40,439 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:04:40,439 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-26 12:04:40,448 INFO L748 eck$LassoCheckResult]: Stem: 29#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3);~m_flush~0 := 1;~m_PipedOutputStream~0 := 2;~m_close~0 := 3;~m_write~0 := 4;~m_connect_1~0 := 5;~m_connect_2~0 := 6; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_sink~0#1, main_~this_sinkConnected~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_sink~0#1 := 0;main_~this_sinkConnected~0#1 := 0; 10#L25-2true [2023-11-26 12:04:40,449 INFO L750 eck$LassoCheckResult]: Loop: 10#L25-2true goto; 35#L290-2true assume !false;havoc main_#t~nondet4#1;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_#t~nondet6#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~P4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 43#L35true assume !(0 == main_~q~0#1); 56#L55true assume !(1 == main_~q~0#1); 53#L107true assume !(2 == main_~q~0#1); 67#L223true assume !(3 == main_~q~0#1);havoc main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1; 10#L25-2true [2023-11-26 12:04:40,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:40,456 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 12:04:40,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:40,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327337393] [2023-11-26 12:04:40,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:40,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:40,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:40,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:40,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:40,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1070475851, now seen corresponding path program 1 times [2023-11-26 12:04:40,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:40,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868971849] [2023-11-26 12:04:40,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:40,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:40,632 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:40,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:40,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:40,653 INFO L85 PathProgramCache]: Analyzing trace with hash 150525069, now seen corresponding path program 1 times [2023-11-26 12:04:40,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:40,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669889458] [2023-11-26 12:04:40,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:40,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:40,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:40,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:40,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669889458] [2023-11-26 12:04:40,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669889458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:40,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:40,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:40,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201412123] [2023-11-26 12:04:40,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:40,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:40,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:40,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:40,928 INFO L87 Difference]: Start difference. First operand has 68 states, 67 states have (on average 1.8955223880597014) internal successors, (127), 67 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2023-11-26 12:04:40,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:40,993 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2023-11-26 12:04:40,994 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 102 transitions. [2023-11-26 12:04:40,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2023-11-26 12:04:41,004 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 77 transitions. [2023-11-26 12:04:41,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2023-11-26 12:04:41,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2023-11-26 12:04:41,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 77 transitions. [2023-11-26 12:04:41,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:41,007 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 77 transitions. [2023-11-26 12:04:41,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 77 transitions. [2023-11-26 12:04:41,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-26 12:04:41,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 51 states have internal predecessors, (77), 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) [2023-11-26 12:04:41,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2023-11-26 12:04:41,043 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 77 transitions. [2023-11-26 12:04:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:41,049 INFO L428 stractBuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2023-11-26 12:04:41,050 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 12:04:41,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 77 transitions. [2023-11-26 12:04:41,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2023-11-26 12:04:41,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:04:41,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:04:41,053 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-26 12:04:41,053 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 12:04:41,053 INFO L748 eck$LassoCheckResult]: Stem: 178#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3);~m_flush~0 := 1;~m_PipedOutputStream~0 := 2;~m_close~0 := 3;~m_write~0 := 4;~m_connect_1~0 := 5;~m_connect_2~0 := 6; 179#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_sink~0#1, main_~this_sinkConnected~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_sink~0#1 := 0;main_~this_sinkConnected~0#1 := 0; 153#L25-2 goto; 154#L290-2 [2023-11-26 12:04:41,053 INFO L750 eck$LassoCheckResult]: Loop: 154#L290-2 assume !false;havoc main_#t~nondet4#1;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_#t~nondet6#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~P4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 184#L35 assume 0 == main_~q~0#1;havoc main_#t~nondet8#1; 188#L36 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1; 154#L290-2 [2023-11-26 12:04:41,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:41,054 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2023-11-26 12:04:41,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:41,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668725850] [2023-11-26 12:04:41,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:41,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:41,067 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:41,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:41,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:41,079 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2023-11-26 12:04:41,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:41,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561794173] [2023-11-26 12:04:41,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:41,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:41,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:41,090 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:41,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:41,091 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2023-11-26 12:04:41,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:41,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240335154] [2023-11-26 12:04:41,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:41,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:41,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:41,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:41,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:41,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 12:04:41 BoogieIcfgContainer [2023-11-26 12:04:41,445 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 12:04:41,446 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:04:41,446 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:04:41,446 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:04:41,447 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:40" (3/4) ... [2023-11-26 12:04:41,448 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-26 12:04:41,491 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:04:41,491 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:04:41,492 INFO L158 Benchmark]: Toolchain (without parser) took 2331.87ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 73.0MB in the end (delta: 39.7MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:41,492 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 115.3MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:41,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.05ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 100.1MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 12:04:41,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.59ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 98.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:41,494 INFO L158 Benchmark]: Boogie Preprocessor took 89.11ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 96.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:41,494 INFO L158 Benchmark]: RCFGBuilder took 615.77ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 79.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 12:04:41,495 INFO L158 Benchmark]: BuchiAutomizer took 1135.08ms. Allocated memory is still 142.6MB. Free memory was 79.2MB in the beginning and 75.1MB in the end (delta: 4.1MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-26 12:04:41,495 INFO L158 Benchmark]: Witness Printer took 45.37ms. Allocated memory is still 142.6MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:41,498 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 115.3MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.05ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 100.1MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.59ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 98.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.11ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 96.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 615.77ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 79.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1135.08ms. Allocated memory is still 142.6MB. Free memory was 79.2MB in the beginning and 75.1MB in the end (delta: 4.1MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Witness Printer took 45.37ms. Allocated memory is still 142.6MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 52 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 170 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 98 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 25]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L7] int m_flush = 1; [L8] int m_PipedOutputStream = 2; [L9] int m_close = 3; [L10] int m_write = 4; [L11] int m_connect_1 = 5; [L12] int m_connect_2 = 6; VAL [m_PipedOutputStream=2, m_close=3, m_connect_1=5, m_connect_2=6, m_flush=1, m_write=4] [L17] int q = 0; [L18] int method_id; [L21] int this_sink = 0; [L22] int this_sinkConnected = 0; VAL [m_PipedOutputStream=2, m_close=3, m_connect_1=5, m_connect_2=6, m_flush=1, m_write=4, q=0, this_sink=0, this_sinkConnected=0] Loop: [L25] COND TRUE 1 [L28] int P1=__VERIFIER_nondet_int(); [L29] int P2=__VERIFIER_nondet_int(); [L30] int P3=__VERIFIER_nondet_int(); [L31] int P4=__VERIFIER_nondet_int(); [L35] COND TRUE q == 0 [L36] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 25]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_flush = 1; [L8] int m_PipedOutputStream = 2; [L9] int m_close = 3; [L10] int m_write = 4; [L11] int m_connect_1 = 5; [L12] int m_connect_2 = 6; VAL [m_PipedOutputStream=2, m_close=3, m_connect_1=5, m_connect_2=6, m_flush=1, m_write=4] [L17] int q = 0; [L18] int method_id; [L21] int this_sink = 0; [L22] int this_sinkConnected = 0; VAL [m_PipedOutputStream=2, m_close=3, m_connect_1=5, m_connect_2=6, m_flush=1, m_write=4, q=0, this_sink=0, this_sinkConnected=0] Loop: [L25] COND TRUE 1 [L28] int P1=__VERIFIER_nondet_int(); [L29] int P2=__VERIFIER_nondet_int(); [L30] int P3=__VERIFIER_nondet_int(); [L31] int P4=__VERIFIER_nondet_int(); [L35] COND TRUE q == 0 [L36] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-26 12:04:41,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d009c93-8d28-496a-a03f-a09f8ba47ea5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)