./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_15x0-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/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_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_15x0-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/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_0fef0f2a-9593-411e-b6ba-62e955db3ff8/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 b32326f1b997cecaa031e8ab338eea5ffa634c465fc73ccabccfc7d02b1e5cc1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:47:21,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:47:21,276 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 11:47:21,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:47:21,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:47:21,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:47:21,318 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:47:21,318 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:47:21,319 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:47:21,320 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:47:21,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:47:21,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:47:21,323 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:47:21,323 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 11:47:21,324 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 11:47:21,325 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 11:47:21,325 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 11:47:21,326 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 11:47:21,327 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 11:47:21,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:47:21,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 11:47:21,329 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:47:21,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:47:21,331 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:47:21,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:47:21,332 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 11:47:21,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 11:47:21,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 11:47:21,334 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:47:21,334 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:47:21,335 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:47:21,335 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 11:47:21,336 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:47:21,336 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:47:21,337 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:47:21,337 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:47:21,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:47:21,338 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 11:47:21,339 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_0fef0f2a-9593-411e-b6ba-62e955db3ff8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b32326f1b997cecaa031e8ab338eea5ffa634c465fc73ccabccfc7d02b1e5cc1 [2023-11-26 11:47:21,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:47:21,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:47:21,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:47:21,737 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:47:21,739 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:47:21,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/recursive-simple/sum_15x0-1.c [2023-11-26 11:47:25,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:47:25,748 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:47:25,749 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/sv-benchmarks/c/recursive-simple/sum_15x0-1.c [2023-11-26 11:47:25,758 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/data/8cc5d7bb7/ae7f82d9b06241eaaea128ead3c1943a/FLAG07e7122a9 [2023-11-26 11:47:25,780 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/data/8cc5d7bb7/ae7f82d9b06241eaaea128ead3c1943a [2023-11-26 11:47:25,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:47:25,795 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:47:25,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:47:25,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:47:25,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:47:25,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:47:25" (1/1) ... [2023-11-26 11:47:25,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5370b91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:25, skipping insertion in model container [2023-11-26 11:47:25,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:47:25" (1/1) ... [2023-11-26 11:47:25,837 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:47:26,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:47:26,089 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:47:26,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:47:26,126 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:47:26,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26 WrapperNode [2023-11-26 11:47:26,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:47:26,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:47:26,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:47:26,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:47:26,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (1/1) ... [2023-11-26 11:47:26,149 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (1/1) ... [2023-11-26 11:47:26,167 INFO L138 Inliner]: procedures = 12, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2023-11-26 11:47:26,168 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:47:26,169 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:47:26,169 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:47:26,170 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:47:26,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (1/1) ... [2023-11-26 11:47:26,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (1/1) ... [2023-11-26 11:47:26,190 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (1/1) ... [2023-11-26 11:47:26,207 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 11:47:26,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (1/1) ... [2023-11-26 11:47:26,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (1/1) ... [2023-11-26 11:47:26,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (1/1) ... [2023-11-26 11:47:26,213 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (1/1) ... [2023-11-26 11:47:26,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (1/1) ... [2023-11-26 11:47:26,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (1/1) ... [2023-11-26 11:47:26,218 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:47:26,219 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:47:26,219 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:47:26,219 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:47:26,221 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (1/1) ... [2023-11-26 11:47:26,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:26,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:26,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:26,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 11:47:26,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:47:26,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:47:26,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:47:26,330 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2023-11-26 11:47:26,330 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2023-11-26 11:47:26,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:47:26,425 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:47:26,428 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:47:26,610 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:47:26,669 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:47:26,671 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:47:26,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:26 BoogieIcfgContainer [2023-11-26 11:47:26,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:47:26,677 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 11:47:26,678 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 11:47:26,683 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 11:47:26,685 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:47:26,687 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 11:47:25" (1/3) ... [2023-11-26 11:47:26,689 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d3dbde7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:47:26, skipping insertion in model container [2023-11-26 11:47:26,689 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:47:26,689 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:26" (2/3) ... [2023-11-26 11:47:26,692 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d3dbde7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:47:26, skipping insertion in model container [2023-11-26 11:47:26,692 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:47:26,693 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:26" (3/3) ... [2023-11-26 11:47:26,695 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum_15x0-1.c [2023-11-26 11:47:26,809 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 11:47:26,809 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 11:47:26,810 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 11:47:26,811 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 11:47:26,812 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 11:47:26,812 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 11:47:26,813 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 11:47:26,814 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 11:47:26,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:47:26,849 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-26 11:47:26,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:47:26,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:47:26,859 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-26 11:47:26,859 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 11:47:26,859 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 11:47:26,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:47:26,864 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-26 11:47:26,864 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:47:26,864 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:47:26,865 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-26 11:47:26,865 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-26 11:47:26,875 INFO L748 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~result~0#1;main_~a~0#1 := 15;main_~b~0#1 := 0; 2#L16true call main_#t~ret5#1 := sum(main_~a~0#1, main_~b~0#1);< 9#$Ultimate##0true [2023-11-26 11:47:26,876 INFO L750 eck$LassoCheckResult]: Loop: 9#$Ultimate##0true ~n := #in~n;~m := #in~m; 15#L6true assume !(~n <= 0); 13#L9true call #t~ret4 := sum(~n - 1, 1 + ~m);< 9#$Ultimate##0true [2023-11-26 11:47:26,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:26,883 INFO L85 PathProgramCache]: Analyzing trace with hash 29878, now seen corresponding path program 1 times [2023-11-26 11:47:26,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:26,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668563736] [2023-11-26 11:47:26,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:26,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:47:27,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:47:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:47:27,133 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:47:27,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:27,137 INFO L85 PathProgramCache]: Analyzing trace with hash 46806, now seen corresponding path program 1 times [2023-11-26 11:47:27,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:27,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623586441] [2023-11-26 11:47:27,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:27,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:47:27,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:47:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:47:27,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:47:27,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:27,186 INFO L85 PathProgramCache]: Analyzing trace with hash 890112513, now seen corresponding path program 1 times [2023-11-26 11:47:27,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:27,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132508540] [2023-11-26 11:47:27,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:27,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:47:27,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:47:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:47:27,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:47:27,486 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:47:27,487 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:47:27,488 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:47:27,488 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:47:27,488 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:47:27,488 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:27,488 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:47:27,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:47:27,489 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_15x0-1.c_Iteration1_Loop [2023-11-26 11:47:27,489 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:47:27,489 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:47:27,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:47:27,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:47:27,531 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:47:27,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:47:27,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:47:27,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:47:27,648 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:47:27,649 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:47:27,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:27,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:27,677 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:27,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:47:27,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:47:27,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 11:47:27,718 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:47:27,718 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret4=0} Honda state: {sum_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:47:27,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:27,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:27,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:27,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:27,749 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:47:27,749 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:47:27,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 11:47:27,774 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:47:27,775 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:47:27,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:27,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:27,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:27,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:27,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 11:47:27,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:47:27,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:47:27,819 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:47:27,819 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~n=0} Honda state: {sum_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:47:27,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:27,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:27,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:27,832 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:27,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:47:27,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:47:27,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 11:47:27,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:27,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:27,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:27,882 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:27,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:47:27,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:47:27,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 11:47:28,021 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:47:28,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:28,033 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:47:28,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:47:28,033 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:47:28,034 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:47:28,034 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:47:28,034 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:28,034 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:47:28,034 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:47:28,034 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_15x0-1.c_Iteration1_Loop [2023-11-26 11:47:28,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:47:28,035 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:47:28,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:47:28,041 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:47:28,045 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:47:28,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:47:28,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:47:28,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:47:28,112 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:47:28,119 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:47:28,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:28,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:28,122 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:28,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 11:47:28,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:47:28,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:47:28,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:47:28,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:47:28,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:47:28,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:47:28,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:47:28,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:47:28,157 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:47:28,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:28,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:28,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:28,169 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:28,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:47:28,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 11:47:28,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:47:28,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:47:28,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:47:28,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:47:28,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:47:28,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:47:28,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:47:28,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:47:28,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:28,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:28,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:28,229 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:28,242 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:47:28,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-26 11:47:28,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:47:28,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:47:28,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:47:28,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:47:28,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:47:28,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:47:28,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:47:28,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:47:28,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:28,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:28,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:28,287 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:28,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-26 11:47:28,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:47:28,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:47:28,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:47:28,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:47:28,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:47:28,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:47:28,309 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:47:28,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:47:28,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:47:28,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:28,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:28,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:28,326 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:28,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:47:28,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-26 11:47:28,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:47:28,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:47:28,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:47:28,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:47:28,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:47:28,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:47:28,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:47:28,371 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:47:28,375 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 11:47:28,375 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:47:28,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:47:28,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:28,408 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:28,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-26 11:47:28,410 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:47:28,410 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:47:28,411 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:47:28,411 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2023-11-26 11:47:28,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:28,421 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:47:28,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:28,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:47:28,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:47:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:28,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:47:28,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:47:28,566 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 11:47:28,606 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-26 11:47:28,609 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:28,717 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 36 transitions. Complement of second has 12 states. [2023-11-26 11:47:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 11:47:28,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-26 11:47:28,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:28,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-26 11:47:28,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2023-11-26 11:47:28,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:47:28,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2023-11-26 11:47:28,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:47:28,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2023-11-26 11:47:28,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:47:28,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2023-11-26 11:47:28,751 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 11:47:28,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2023-11-26 11:47:28,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 11:47:28,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 11:47:28,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 11:47:28,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:28,757 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:47:28,757 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:47:28,757 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:47:28,757 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 11:47:28,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:47:28,757 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 11:47:28,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-26 11:47:28,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 11:47:28 BoogieIcfgContainer [2023-11-26 11:47:28,766 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 11:47:28,767 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:47:28,767 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:47:28,768 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:47:28,768 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:26" (3/4) ... [2023-11-26 11:47:28,770 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:47:28,772 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:47:28,773 INFO L158 Benchmark]: Toolchain (without parser) took 2977.46ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 74.9MB in the beginning and 122.5MB in the end (delta: -47.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:47:28,774 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory was 51.0MB in the beginning and 50.9MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:47:28,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.16ms. Allocated memory is still 119.5MB. Free memory was 74.6MB in the beginning and 64.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 11:47:28,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.16ms. Allocated memory is still 119.5MB. Free memory was 64.8MB in the beginning and 63.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:47:28,776 INFO L158 Benchmark]: Boogie Preprocessor took 49.23ms. Allocated memory is still 119.5MB. Free memory was 63.4MB in the beginning and 61.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:47:28,777 INFO L158 Benchmark]: RCFGBuilder took 456.94ms. Allocated memory is still 119.5MB. Free memory was 61.8MB in the beginning and 90.8MB in the end (delta: -29.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 11:47:28,778 INFO L158 Benchmark]: BuchiAutomizer took 2089.62ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 90.7MB in the beginning and 122.8MB in the end (delta: -32.1MB). Peak memory consumption was 821.7kB. Max. memory is 16.1GB. [2023-11-26 11:47:28,778 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 153.1MB. Free memory was 122.8MB in the beginning and 122.5MB in the end (delta: 261.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:47:28,783 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory was 51.0MB in the beginning and 50.9MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.16ms. Allocated memory is still 119.5MB. Free memory was 74.6MB in the beginning and 64.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.16ms. Allocated memory is still 119.5MB. Free memory was 64.8MB in the beginning and 63.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.23ms. Allocated memory is still 119.5MB. Free memory was 63.4MB in the beginning and 61.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 456.94ms. Allocated memory is still 119.5MB. Free memory was 61.8MB in the beginning and 90.8MB in the end (delta: -29.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2089.62ms. Allocated memory was 119.5MB in the beginning and 153.1MB in the end (delta: 33.6MB). Free memory was 90.7MB in the beginning and 122.8MB in the end (delta: -32.1MB). Peak memory consumption was 821.7kB. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 153.1MB. Free memory was 122.8MB in the beginning and 122.5MB in the end (delta: 261.4kB). There was no memory consumed. 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 (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-26 11:47:28,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef0f2a-9593-411e-b6ba-62e955db3ff8/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 Result: TRUE