./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/psyco/psyco_security.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_security.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu --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 c03d27deb00d6c25e1f99c43455f6da27475e88a721be2a7236bfffedf5da1e8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:47:59,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:47:59,118 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:47:59,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:47:59,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:47:59,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:47:59,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:47:59,154 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:47:59,155 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:47:59,156 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:47:59,157 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:47:59,157 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:47:59,158 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:47:59,159 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:47:59,159 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:47:59,160 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:47:59,161 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:47:59,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:47:59,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:47:59,163 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:47:59,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:47:59,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:47:59,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:47:59,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:47:59,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:47:59,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:47:59,167 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:47:59,167 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:47:59,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:47:59,168 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:47:59,169 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:47:59,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:47:59,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:47:59,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:47:59,170 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:47:59,171 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:47:59,171 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_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03d27deb00d6c25e1f99c43455f6da27475e88a721be2a7236bfffedf5da1e8 [2023-11-19 07:47:59,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:47:59,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:47:59,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:47:59,491 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:47:59,492 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:47:59,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/psyco/psyco_security.c [2023-11-19 07:48:02,608 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:02,851 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:02,854 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/sv-benchmarks/c/psyco/psyco_security.c [2023-11-19 07:48:02,871 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/data/bcbc88bd8/3acc023f11ea4863bd18ac65e8ec318e/FLAG708dc8faa [2023-11-19 07:48:02,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/data/bcbc88bd8/3acc023f11ea4863bd18ac65e8ec318e [2023-11-19 07:48:02,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:02,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:02,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:02,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:02,900 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:02,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:02" (1/1) ... [2023-11-19 07:48:02,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc32025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:02, skipping insertion in model container [2023-11-19 07:48:02,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:02" (1/1) ... [2023-11-19 07:48:02,955 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:03,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:03,152 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:03,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:03,202 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:03,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03 WrapperNode [2023-11-19 07:48:03,203 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:03,204 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:03,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:03,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:03,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,249 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 269 [2023-11-19 07:48:03,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:03,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:03,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:03,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:03,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,286 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:03,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:03,287 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:03,287 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:03,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (1/1) ... [2023-11-19 07:48:03,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:48:03,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:03,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:03,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:03,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:48:03,474 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:03,477 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:48:03,817 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:48:03,827 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:48:03,833 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-19 07:48:03,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:03 BoogieIcfgContainer [2023-11-19 07:48:03,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:48:03,839 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:48:03,839 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:48:03,843 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:48:03,844 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:48:03,844 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:48:02" (1/3) ... [2023-11-19 07:48:03,846 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@525c50fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:48:03, skipping insertion in model container [2023-11-19 07:48:03,846 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:48:03,846 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:03" (2/3) ... [2023-11-19 07:48:03,847 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@525c50fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:48:03, skipping insertion in model container [2023-11-19 07:48:03,849 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:48:03,849 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:03" (3/3) ... [2023-11-19 07:48:03,850 INFO L332 chiAutomizerObserver]: Analyzing ICFG psyco_security.c [2023-11-19 07:48:03,931 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:48:03,931 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:48:03,931 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:48:03,932 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:48:03,932 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:48:03,932 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:48:03,933 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:48:03,933 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:48:03,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 78 states, 77 states have (on average 1.9090909090909092) internal successors, (147), 77 states have internal predecessors, (147), 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) [2023-11-19 07:48:03,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2023-11-19 07:48:03,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:48:03,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:48:03,989 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:48:03,990 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:03,990 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:48:03,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 78 states, 77 states have (on average 1.9090909090909092) internal successors, (147), 77 states have internal predecessors, (147), 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) [2023-11-19 07:48:04,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2023-11-19 07:48:04,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:48:04,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:48:04,013 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:48:04,013 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:04,023 INFO L748 eck$LassoCheckResult]: Stem: 37#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~m_initSign~0 := 1;~m_initVerify~0 := 2;~m_Signature~0 := 3;~m_sign~0 := 4;~m_verify~0 := 5;~m_update~0 := 6; 49#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_~q~0#1, main_~method_id~0#1, main_~this_state~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_state~0#1 := 0; 4#L24-2true [2023-11-19 07:48:04,025 INFO L750 eck$LassoCheckResult]: Loop: 4#L24-2true goto; 71#L368-2true assume !false; 25#L29true assume !(0 == main_~q~0#1); 58#L49true assume !(1 == main_~q~0#1); 65#L101true assume !(2 == main_~q~0#1); 38#L185true assume !(3 == main_~q~0#1); 61#L285true assume !(4 == main_~q~0#1); 4#L24-2true [2023-11-19 07:48:04,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:04,032 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:48:04,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:04,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987894704] [2023-11-19 07:48:04,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:04,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:04,220 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:48:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:04,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:48:04,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:04,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1175019824, now seen corresponding path program 1 times [2023-11-19 07:48:04,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:04,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535781532] [2023-11-19 07:48:04,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:04,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:04,289 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:48:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:04,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:48:04,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:04,313 INFO L85 PathProgramCache]: Analyzing trace with hash 371277006, now seen corresponding path program 1 times [2023-11-19 07:48:04,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:04,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707406464] [2023-11-19 07:48:04,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:04,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:04,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:04,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707406464] [2023-11-19 07:48:04,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707406464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:04,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:04,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:48:04,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111966683] [2023-11-19 07:48:04,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:04,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:04,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:04,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:04,614 INFO L87 Difference]: Start difference. First operand has 78 states, 77 states have (on average 1.9090909090909092) internal successors, (147), 77 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:04,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:04,738 INFO L93 Difference]: Finished difference Result 80 states and 122 transitions. [2023-11-19 07:48:04,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 122 transitions. [2023-11-19 07:48:04,750 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 56 [2023-11-19 07:48:04,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 59 states and 81 transitions. [2023-11-19 07:48:04,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2023-11-19 07:48:04,760 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2023-11-19 07:48:04,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2023-11-19 07:48:04,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:04,762 INFO L218 hiAutomatonCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-11-19 07:48:04,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2023-11-19 07:48:04,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-19 07:48:04,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 58 states have internal predecessors, (81), 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) [2023-11-19 07:48:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2023-11-19 07:48:04,809 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-11-19 07:48:04,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:04,816 INFO L428 stractBuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-11-19 07:48:04,817 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:48:04,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2023-11-19 07:48:04,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 56 [2023-11-19 07:48:04,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:48:04,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:48:04,824 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 07:48:04,824 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:48:04,824 INFO L748 eck$LassoCheckResult]: Stem: 207#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~m_initSign~0 := 1;~m_initVerify~0 := 2;~m_Signature~0 := 3;~m_sign~0 := 4;~m_verify~0 := 5;~m_update~0 := 6; 208#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_~q~0#1, main_~method_id~0#1, main_~this_state~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_state~0#1 := 0; 172#L24-2 goto; 171#L368-2 [2023-11-19 07:48:04,824 INFO L750 eck$LassoCheckResult]: Loop: 171#L368-2 assume !false; 199#L29 assume 0 == main_~q~0#1;havoc main_#t~nondet4#1; 169#L30 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1; 171#L368-2 [2023-11-19 07:48:04,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:04,827 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2023-11-19 07:48:04,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:04,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942898479] [2023-11-19 07:48:04,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:04,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:04,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:48:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:04,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:48:04,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:04,859 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2023-11-19 07:48:04,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:04,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426052421] [2023-11-19 07:48:04,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:04,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:04,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:48:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:04,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:48:04,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:04,876 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2023-11-19 07:48:04,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:04,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584142434] [2023-11-19 07:48:04,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:04,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:04,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:48:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:04,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:48:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:05,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:48:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:05,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:48:05 BoogieIcfgContainer [2023-11-19 07:48:05,220 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:48:05,221 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:48:05,221 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:48:05,221 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:48:05,222 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:03" (3/4) ... [2023-11-19 07:48:05,223 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 07:48:05,262 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:48:05,263 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:48:05,264 INFO L158 Benchmark]: Toolchain (without parser) took 2370.96ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 103.4MB in the beginning and 99.8MB in the end (delta: 3.6MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2023-11-19 07:48:05,264 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 144.7MB. Free memory was 91.5MB in the beginning and 91.4MB in the end (delta: 151.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:48:05,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.53ms. Allocated memory is still 144.7MB. Free memory was 103.0MB in the beginning and 90.8MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:48:05,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.76ms. Allocated memory is still 144.7MB. Free memory was 90.8MB in the beginning and 88.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:48:05,266 INFO L158 Benchmark]: Boogie Preprocessor took 35.40ms. Allocated memory is still 144.7MB. Free memory was 88.7MB in the beginning and 87.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:48:05,267 INFO L158 Benchmark]: RCFGBuilder took 551.11ms. Allocated memory is still 144.7MB. Free memory was 87.1MB in the beginning and 70.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:48:05,268 INFO L158 Benchmark]: BuchiAutomizer took 1381.15ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 70.2MB in the beginning and 101.8MB in the end (delta: -31.6MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2023-11-19 07:48:05,268 INFO L158 Benchmark]: Witness Printer took 42.25ms. Allocated memory is still 176.2MB. Free memory was 101.8MB in the beginning and 99.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:48:05,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 144.7MB. Free memory was 91.5MB in the beginning and 91.4MB in the end (delta: 151.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.53ms. Allocated memory is still 144.7MB. Free memory was 103.0MB in the beginning and 90.8MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.76ms. Allocated memory is still 144.7MB. Free memory was 90.8MB in the beginning and 88.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.40ms. Allocated memory is still 144.7MB. Free memory was 88.7MB in the beginning and 87.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 551.11ms. Allocated memory is still 144.7MB. Free memory was 87.1MB in the beginning and 70.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1381.15ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 70.2MB in the beginning and 101.8MB in the end (delta: -31.6MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. * Witness Printer took 42.25ms. Allocated memory is still 176.2MB. Free memory was 101.8MB in the beginning and 99.8MB in the end (delta: 2.0MB). 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 59 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. 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, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 201 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 118 mSDtfsCounter, 32 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: 24]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L7] int m_initSign = 1; [L8] int m_initVerify = 2; [L9] int m_Signature = 3; [L10] int m_sign = 4; [L11] int m_verify = 5; [L12] int m_update = 6; VAL [m_Signature=3, m_initSign=1, m_initVerify=2, m_sign=4, m_update=6, m_verify=5] [L17] int q = 0; [L18] int method_id; [L21] int this_state = 0; VAL [m_Signature=3, m_initSign=1, m_initVerify=2, m_sign=4, m_update=6, m_verify=5, q=0, this_state=0] Loop: [L24] COND TRUE 1 [L29] COND TRUE q == 0 [L30] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 24]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_initSign = 1; [L8] int m_initVerify = 2; [L9] int m_Signature = 3; [L10] int m_sign = 4; [L11] int m_verify = 5; [L12] int m_update = 6; VAL [m_Signature=3, m_initSign=1, m_initVerify=2, m_sign=4, m_update=6, m_verify=5] [L17] int q = 0; [L18] int method_id; [L21] int this_state = 0; VAL [m_Signature=3, m_initSign=1, m_initVerify=2, m_sign=4, m_update=6, m_verify=5, q=0, this_state=0] Loop: [L24] COND TRUE 1 [L29] COND TRUE q == 0 [L30] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:48:05,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e84efd0-1dd9-42cd-8af8-97ed5ea59670/bin/uautomizer-verify-uCwYo4JHxu/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)