./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b.i --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_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/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_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/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_658f66dc-4695-42c8-8629-09d6d0daeb8f/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 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:56:46,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:56:46,614 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 11:56:46,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:56:46,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:56:46,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:56:46,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:56:46,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:56:46,668 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:56:46,673 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:56:46,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:56:46,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:56:46,675 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:56:46,678 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 11:56:46,678 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 11:56:46,679 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 11:56:46,679 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 11:56:46,679 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 11:56:46,680 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 11:56:46,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:56:46,681 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 11:56:46,684 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:56:46,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:56:46,685 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:56:46,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:56:46,686 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 11:56:46,686 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 11:56:46,687 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 11:56:46,687 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:56:46,687 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:56:46,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:56:46,689 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 11:56:46,689 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:56:46,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:56:46,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:56:46,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:56:46,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:56:46,691 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 11:56:46,691 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_658f66dc-4695-42c8-8629-09d6d0daeb8f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c [2023-11-26 11:56:46,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:56:47,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:56:47,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:56:47,031 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:56:47,032 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:56:47,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/loop-lit/cggmp2005b.i [2023-11-26 11:56:50,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:56:50,530 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:56:50,530 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/sv-benchmarks/c/loop-lit/cggmp2005b.i [2023-11-26 11:56:50,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/data/e67f00085/eaa96c6395f345efb6e2049f375c0b89/FLAG1933840db [2023-11-26 11:56:50,558 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/data/e67f00085/eaa96c6395f345efb6e2049f375c0b89 [2023-11-26 11:56:50,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:56:50,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:56:50,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:56:50,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:56:50,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:56:50,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea4d11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50, skipping insertion in model container [2023-11-26 11:56:50,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,605 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:56:50,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:56:50,834 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:56:50,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:56:50,873 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:56:50,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50 WrapperNode [2023-11-26 11:56:50,873 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:56:50,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:56:50,875 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:56:50,875 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:56:50,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,888 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,911 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 42 [2023-11-26 11:56:50,911 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:56:50,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:56:50,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:56:50,912 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:56:50,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,926 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,938 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 11:56:50,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:56:50,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:56:50,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:56:50,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:56:50,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (1/1) ... [2023-11-26 11:56:50,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:50,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:50,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:51,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 11:56:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:56:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:56:51,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:56:51,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:56:51,102 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:56:51,104 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:56:51,195 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:56:51,203 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:56:51,203 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-26 11:56:51,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:56:51 BoogieIcfgContainer [2023-11-26 11:56:51,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:56:51,222 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 11:56:51,222 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 11:56:51,226 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 11:56:51,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:56:51,227 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 11:56:50" (1/3) ... [2023-11-26 11:56:51,228 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c490f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:56:51, skipping insertion in model container [2023-11-26 11:56:51,229 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:56:51,229 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:50" (2/3) ... [2023-11-26 11:56:51,229 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4c490f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:56:51, skipping insertion in model container [2023-11-26 11:56:51,229 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:56:51,229 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:56:51" (3/3) ... [2023-11-26 11:56:51,231 INFO L332 chiAutomizerObserver]: Analyzing ICFG cggmp2005b.i [2023-11-26 11:56:51,279 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 11:56:51,279 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 11:56:51,279 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 11:56:51,279 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 11:56:51,280 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 11:56:51,280 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 11:56:51,280 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 11:56:51,280 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 11:56:51,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 11:56:51,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:56:51,299 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:56:51,304 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 11:56:51,305 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 11:56:51,305 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 11:56:51,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 11:56:51,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:56:51,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:56:51,308 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 11:56:51,308 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 11:56:51,314 INFO L748 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 5#L35-3true [2023-11-26 11:56:51,315 INFO L750 eck$LassoCheckResult]: Loop: 5#L35-3true assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 12#L31-2true assume !(main_~j~0#1 < 20); 6#L31-3true main_~k~0#1 := 4; 11#L35-2true assume !true; 5#L35-3true [2023-11-26 11:56:51,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:51,320 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 11:56:51,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:51,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579502694] [2023-11-26 11:56:51,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:51,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:51,410 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:56:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:51,453 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:56:51,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:51,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1269299, now seen corresponding path program 1 times [2023-11-26 11:56:51,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:51,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876357073] [2023-11-26 11:56:51,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:51,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:51,520 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 11:56:51,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:51,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876357073] [2023-11-26 11:56:51,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876357073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:51,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:51,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:56:51,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012153636] [2023-11-26 11:56:51,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:51,528 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 11:56:51,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:51,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:56:51,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:56:51,566 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:51,573 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2023-11-26 11:56:51,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2023-11-26 11:56:51,575 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 11:56:51,579 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 6 states and 8 transitions. [2023-11-26 11:56:51,580 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-26 11:56:51,580 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-26 11:56:51,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2023-11-26 11:56:51,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:51,581 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-11-26 11:56:51,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2023-11-26 11:56:51,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-11-26 11:56:51,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2023-11-26 11:56:51,609 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-11-26 11:56:51,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:56:51,613 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-11-26 11:56:51,614 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 11:56:51,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2023-11-26 11:56:51,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 11:56:51,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:56:51,615 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:56:51,615 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 11:56:51,615 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 11:56:51,615 INFO L748 eck$LassoCheckResult]: Stem: 37#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 38#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 40#L35-3 [2023-11-26 11:56:51,616 INFO L750 eck$LassoCheckResult]: Loop: 40#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 41#L31-2 assume !(main_~j~0#1 < 20); 42#L31-3 main_~k~0#1 := 4; 39#L35-2 assume !(main_~k~0#1 <= 3); 40#L35-3 [2023-11-26 11:56:51,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:51,617 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-26 11:56:51,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:51,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278423164] [2023-11-26 11:56:51,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:51,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:51,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:56:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:51,634 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:56:51,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:51,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1269295, now seen corresponding path program 1 times [2023-11-26 11:56:51,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:51,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108782447] [2023-11-26 11:56:51,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:51,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:51,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:56:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:51,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:56:51,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:51,652 INFO L85 PathProgramCache]: Analyzing trace with hash 889696497, now seen corresponding path program 1 times [2023-11-26 11:56:51,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:51,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570396532] [2023-11-26 11:56:51,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:51,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:51,709 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 11:56:51,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:51,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570396532] [2023-11-26 11:56:51,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570396532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:51,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:51,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:56:51,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306504720] [2023-11-26 11:56:51,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:51,797 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:56:51,798 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:56:51,798 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:56:51,798 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:56:51,798 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:56:51,799 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:51,799 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:56:51,799 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:56:51,799 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2023-11-26 11:56:51,799 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:56:51,800 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:56:51,816 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 11:56:51,835 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 11:56:51,845 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 11:56:51,891 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:56:51,892 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:56:51,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:51,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:51,898 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:51,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:56:51,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:56:51,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 11:56:51,936 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:56:51,936 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=20} Honda state: {ULTIMATE.start_main_~j~0#1=20} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:56:51,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:51,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:51,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:51,946 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:51,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 11:56:51,951 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:56:51,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:56:51,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:51,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:51,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:51,993 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:52,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:56:52,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:56:52,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 11:56:52,044 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:56:52,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:52,054 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:56:52,054 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:56:52,054 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:56:52,054 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:56:52,055 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:56:52,055 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:52,055 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:56:52,055 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:56:52,055 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2023-11-26 11:56:52,055 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:56:52,055 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:56:52,057 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 11:56:52,065 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 11:56:52,078 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 11:56:52,122 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:56:52,127 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:56:52,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:52,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:52,130 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:52,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 11:56:52,138 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 11:56:52,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:56:52,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:56:52,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:56:52,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:56:52,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:56:52,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:56:52,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:56:52,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:56:52,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:52,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:52,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:52,175 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:52,186 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 11:56:52,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:56:52,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:56:52,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:56:52,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:56:52,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:56:52,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:56:52,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:56:52,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 11:56:52,211 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:56:52,215 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:56:52,215 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:56:52,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:52,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:52,248 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:52,259 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:56:52,259 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:56:52,259 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:56:52,260 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 201 Supporting invariants [] [2023-11-26 11:56:52,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 11:56:52,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-26 11:56:52,272 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:56:52,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:52,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:56:52,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:52,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:56:52,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:52,450 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 11:56:52,453 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 11:56:52,455 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:52,483 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Result 14 states and 21 transitions. Complement of second has 4 states. [2023-11-26 11:56:52,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 11:56:52,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:52,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2023-11-26 11:56:52,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-26 11:56:52,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:52,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-26 11:56:52,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:52,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-26 11:56:52,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:52,491 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2023-11-26 11:56:52,492 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-11-26 11:56:52,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 20 transitions. [2023-11-26 11:56:52,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-26 11:56:52,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-26 11:56:52,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 20 transitions. [2023-11-26 11:56:52,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:56:52,494 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 20 transitions. [2023-11-26 11:56:52,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 20 transitions. [2023-11-26 11:56:52,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2023-11-26 11:56:52,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:52,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2023-11-26 11:56:52,497 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 17 transitions. [2023-11-26 11:56:52,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:52,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:52,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:52,498 INFO L87 Difference]: Start difference. First operand 11 states and 17 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:52,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:52,503 INFO L93 Difference]: Finished difference Result 12 states and 19 transitions. [2023-11-26 11:56:52,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 19 transitions. [2023-11-26 11:56:52,504 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-11-26 11:56:52,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 19 transitions. [2023-11-26 11:56:52,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-26 11:56:52,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-26 11:56:52,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2023-11-26 11:56:52,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:56:52,506 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 19 transitions. [2023-11-26 11:56:52,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2023-11-26 11:56:52,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-26 11:56:52,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:52,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 19 transitions. [2023-11-26 11:56:52,508 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 19 transitions. [2023-11-26 11:56:52,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:52,509 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2023-11-26 11:56:52,509 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 11:56:52,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 19 transitions. [2023-11-26 11:56:52,510 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-11-26 11:56:52,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:56:52,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:56:52,511 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-26 11:56:52,511 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-26 11:56:52,511 INFO L748 eck$LassoCheckResult]: Stem: 118#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 119#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 127#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 128#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 123#L31-2 [2023-11-26 11:56:52,511 INFO L750 eck$LassoCheckResult]: Loop: 123#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 123#L31-2 [2023-11-26 11:56:52,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:52,512 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2023-11-26 11:56:52,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:52,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43602251] [2023-11-26 11:56:52,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:52,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:52,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:56:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:52,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:56:52,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:52,553 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-11-26 11:56:52,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:52,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342905648] [2023-11-26 11:56:52,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:52,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:52,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:56:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:52,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:56:52,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:52,567 INFO L85 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2023-11-26 11:56:52,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:52,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690862070] [2023-11-26 11:56:52,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:52,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:52,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:56:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:52,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:56:52,789 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:56:52,789 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:56:52,789 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:56:52,789 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:56:52,790 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:56:52,790 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:52,790 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:56:52,790 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:56:52,790 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2023-11-26 11:56:52,790 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:56:52,790 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:56:52,793 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 11:56:52,804 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 11:56:52,808 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 11:56:52,827 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 11:56:52,846 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 11:56:52,866 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 11:56:52,869 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 11:56:52,997 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:56:52,997 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:56:52,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:52,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:52,999 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:53,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 11:56:53,006 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 11:56:53,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:56:53,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:56:53,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:56:53,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:56:53,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 11:56:53,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 11:56:53,043 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:56:53,056 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-11-26 11:56:53,056 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-11-26 11:56:53,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:53,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:53,060 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:53,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-26 11:56:53,068 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:56:53,088 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-26 11:56:53,088 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:56:53,088 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0#1 - 1 >= 0] [2023-11-26 11:56:53,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-26 11:56:53,106 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-11-26 11:56:53,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:53,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:56:53,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:53,193 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:56:53,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:53,194 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 11:56:53,194 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2023-11-26 11:56:53,195 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,243 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Result 21 states and 34 transitions. Complement of second has 6 states. [2023-11-26 11:56:53,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 11:56:53,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-11-26 11:56:53,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-26 11:56:53,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:53,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 5 letters. Loop has 1 letters. [2023-11-26 11:56:53,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:53,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-26 11:56:53,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:53,246 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 34 transitions. [2023-11-26 11:56:53,247 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-26 11:56:53,248 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 28 transitions. [2023-11-26 11:56:53,248 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-26 11:56:53,248 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-26 11:56:53,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2023-11-26 11:56:53,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:56:53,249 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2023-11-26 11:56:53,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2023-11-26 11:56:53,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-11-26 11:56:53,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.588235294117647) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 27 transitions. [2023-11-26 11:56:53,251 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 27 transitions. [2023-11-26 11:56:53,252 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2023-11-26 11:56:53,252 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 11:56:53,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 27 transitions. [2023-11-26 11:56:53,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-26 11:56:53,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:56:53,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:56:53,253 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-26 11:56:53,253 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-26 11:56:53,254 INFO L748 eck$LassoCheckResult]: Stem: 202#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 203#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 213#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 214#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 207#L31-2 assume !(main_~j~0#1 < 20); 208#L31-3 main_~k~0#1 := 4; 204#L35-2 [2023-11-26 11:56:53,254 INFO L750 eck$LassoCheckResult]: Loop: 204#L35-2 assume !!(main_~k~0#1 <= 3);main_~k~0#1 := 1 + main_~k~0#1; 204#L35-2 [2023-11-26 11:56:53,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:53,254 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2023-11-26 11:56:53,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:53,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851184107] [2023-11-26 11:56:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:53,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:53,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:53,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851184107] [2023-11-26 11:56:53,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851184107] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:53,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744606723] [2023-11-26 11:56:53,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:53,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:53,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:53,333 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:53,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:56:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:53,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:56:53,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:53,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:53,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:56:53,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:53,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744606723] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:56:53,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:56:53,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-26 11:56:53,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111791224] [2023-11-26 11:56:53,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:56:53,463 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 11:56:53,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:53,464 INFO L85 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2023-11-26 11:56:53,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:53,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528763791] [2023-11-26 11:56:53,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:53,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:53,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:56:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:53,471 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:56:53,485 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:56:53,485 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:56:53,485 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:56:53,485 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:56:53,486 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:56:53,486 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:53,486 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:56:53,486 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:56:53,486 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2023-11-26 11:56:53,486 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:56:53,486 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:56:53,487 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 11:56:53,507 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:56:53,507 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:56:53,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:53,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:53,512 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:53,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:56:53,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:56:53,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-26 11:56:53,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:53,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:53,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:53,546 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:53,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-26 11:56:53,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:56:53,551 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:56:53,596 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:56:53,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:53,601 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:56:53,601 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:56:53,601 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:56:53,602 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:56:53,602 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:56:53,602 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:53,602 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:56:53,602 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:56:53,602 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2023-11-26 11:56:53,602 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:56:53,602 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:56:53,603 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 11:56:53,631 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:56:53,631 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:56:53,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:53,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:53,633 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:53,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-26 11:56:53,645 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 11:56:53,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:56:53,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:56:53,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:56:53,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:56:53,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:56:53,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:56:53,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:56:53,684 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:56:53,687 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:56:53,687 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:56:53,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:53,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:53,691 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:53,699 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:56:53,699 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:56:53,699 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:56:53,699 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = -2*ULTIMATE.start_main_~k~0#1 + 7 Supporting invariants [] [2023-11-26 11:56:53,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-26 11:56:53,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:53,711 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:56:53,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:53,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:56:53,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:53,760 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:56:53,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:53,761 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 11:56:53,762 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-26 11:56:53,762 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,791 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Result 48 states and 76 transitions. Complement of second has 5 states. [2023-11-26 11:56:53,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 11:56:53,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2023-11-26 11:56:53,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 1 letters. [2023-11-26 11:56:53,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:53,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-26 11:56:53,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:53,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-26 11:56:53,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:53,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 76 transitions. [2023-11-26 11:56:53,805 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-26 11:56:53,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 52 transitions. [2023-11-26 11:56:53,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-26 11:56:53,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-26 11:56:53,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 52 transitions. [2023-11-26 11:56:53,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:56:53,808 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 52 transitions. [2023-11-26 11:56:53,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 52 transitions. [2023-11-26 11:56:53,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2023-11-26 11:56:53,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2023-11-26 11:56:53,814 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2023-11-26 11:56:53,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:56:53,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:56:53,817 INFO L87 Difference]: Start difference. First operand 17 states and 26 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:53,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:53,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-26 11:56:53,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:53,889 INFO L93 Difference]: Finished difference Result 19 states and 28 transitions. [2023-11-26 11:56:53,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 28 transitions. [2023-11-26 11:56:53,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-26 11:56:53,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 28 transitions. [2023-11-26 11:56:53,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-26 11:56:53,891 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-26 11:56:53,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2023-11-26 11:56:53,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:56:53,891 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 28 transitions. [2023-11-26 11:56:53,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2023-11-26 11:56:53,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-26 11:56:53,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2023-11-26 11:56:53,894 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 28 transitions. [2023-11-26 11:56:53,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:53,897 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2023-11-26 11:56:53,899 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-26 11:56:53,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 28 transitions. [2023-11-26 11:56:53,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-26 11:56:53,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:56:53,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:56:53,901 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1] [2023-11-26 11:56:53,902 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-26 11:56:53,902 INFO L748 eck$LassoCheckResult]: Stem: 381#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 382#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~i~0#1 := 0;main_~k~0#1 := 9;main_~j~0#1 := -100; 386#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 390#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 391#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 399#L31-2 assume !!(main_~j~0#1 < 20);main_~j~0#1 := main_~i~0#1 + main_~j~0#1; 396#L31-2 assume !(main_~j~0#1 < 20); 393#L31-3 main_~k~0#1 := 4; 384#L35-2 assume !(main_~k~0#1 <= 3); 385#L35-3 assume !!(main_~i~0#1 <= 100);main_~i~0#1 := 1 + main_~i~0#1; 392#L31-2 assume !(main_~j~0#1 < 20); 388#L31-3 main_~k~0#1 := 4; 383#L35-2 [2023-11-26 11:56:53,903 INFO L750 eck$LassoCheckResult]: Loop: 383#L35-2 assume !!(main_~k~0#1 <= 3);main_~k~0#1 := 1 + main_~k~0#1; 383#L35-2 [2023-11-26 11:56:53,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:53,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1938241212, now seen corresponding path program 1 times [2023-11-26 11:56:53,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:53,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739766799] [2023-11-26 11:56:53,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:53,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,110 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:56:54,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:54,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739766799] [2023-11-26 11:56:54,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739766799] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:54,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68434238] [2023-11-26 11:56:54,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:54,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:54,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:54,114 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:54,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-26 11:56:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:56:54,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:54,259 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:56:54,259 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:56:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:56:54,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68434238] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:56:54,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:56:54,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2023-11-26 11:56:54,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993983833] [2023-11-26 11:56:54,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:56:54,344 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 11:56:54,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:54,345 INFO L85 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 2 times [2023-11-26 11:56:54,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:54,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262870100] [2023-11-26 11:56:54,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:54,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:54,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:56:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:56:54,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:56:54,367 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:56:54,367 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:56:54,367 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:56:54,367 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:56:54,368 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:56:54,368 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:54,368 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:56:54,368 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:56:54,368 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2023-11-26 11:56:54,368 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:56:54,368 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:56:54,369 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 11:56:54,390 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:56:54,390 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:56:54,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:54,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:54,392 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:54,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:56:54,404 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:56:54,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-26 11:56:54,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:54,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:54,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:54,434 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:54,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-26 11:56:54,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:56:54,441 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:56:54,463 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:56:54,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-26 11:56:54,473 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:56:54,473 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:56:54,473 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:56:54,473 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:56:54,473 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:56:54,473 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:54,473 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:56:54,473 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:56:54,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2023-11-26 11:56:54,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:56:54,473 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:56:54,474 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 11:56:54,502 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:56:54,502 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:56:54,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:54,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:54,504 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:54,515 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 11:56:54,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-26 11:56:54,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:56:54,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:56:54,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:56:54,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:56:54,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:56:54,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:56:54,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:56:54,541 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:56:54,545 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:56:54,545 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:56:54,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:56:54,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:54,549 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:54,558 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:56:54,558 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:56:54,558 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:56:54,558 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1) = -2*ULTIMATE.start_main_~k~0#1 + 7 Supporting invariants [] [2023-11-26 11:56:54,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-26 11:56:54,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-26 11:56:54,565 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:56:54,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:56:54,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,629 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:56:54,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:54,630 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 11:56:54,631 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-26 11:56:54,631 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2023-11-26 11:56:54,651 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) Result 45 states and 70 transitions. Complement of second has 5 states. [2023-11-26 11:56:54,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 11:56:54,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2023-11-26 11:56:54,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2023-11-26 11:56:54,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 1 letters. [2023-11-26 11:56:54,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:54,655 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:56:54,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:56:54,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,716 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:56:54,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:54,717 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 11:56:54,718 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-26 11:56:54,718 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2023-11-26 11:56:54,733 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) Result 45 states and 70 transitions. Complement of second has 5 states. [2023-11-26 11:56:54,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 11:56:54,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2023-11-26 11:56:54,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2023-11-26 11:56:54,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 1 letters. [2023-11-26 11:56:54,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:54,737 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:56:54,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:56:54,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,790 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:56:54,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:54,790 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 11:56:54,791 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-26 11:56:54,791 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2023-11-26 11:56:54,807 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) Result 34 states and 50 transitions. Complement of second has 4 states. [2023-11-26 11:56:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 11:56:54,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2023-11-26 11:56:54,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2023-11-26 11:56:54,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 1 letters. [2023-11-26 11:56:54,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:54,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 13 letters. Loop has 1 letters. [2023-11-26 11:56:54,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:54,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 2 letters. [2023-11-26 11:56:54,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:56:54,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2023-11-26 11:56:54,822 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 11:56:54,822 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2023-11-26 11:56:54,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 11:56:54,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 11:56:54,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 11:56:54,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:54,823 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:56:54,823 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:56:54,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:54,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-26 11:56:54,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:56:54,826 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:54,826 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-26 11:56:54,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-26 11:56:54,827 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 11:56:54,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:56:54,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 11:56:54,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 11:56:54,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 11:56:54,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:54,827 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:56:54,828 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:56:54,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:56:54,829 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:56:54,829 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-26 11:56:54,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:56:54,829 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 11:56:54,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-26 11:56:54,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 11:56:54 BoogieIcfgContainer [2023-11-26 11:56:54,846 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 11:56:54,847 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:56:54,847 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:56:54,847 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:56:54,848 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:56:51" (3/4) ... [2023-11-26 11:56:54,850 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:56:54,851 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:56:54,852 INFO L158 Benchmark]: Toolchain (without parser) took 4285.09ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 92.0MB in the beginning and 121.9MB in the end (delta: -30.0MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-11-26 11:56:54,852 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:56:54,853 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.56ms. Allocated memory is still 140.5MB. Free memory was 92.0MB in the beginning and 81.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 11:56:54,853 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.35ms. Allocated memory is still 140.5MB. Free memory was 81.5MB in the beginning and 79.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:56:54,854 INFO L158 Benchmark]: Boogie Preprocessor took 37.32ms. Allocated memory is still 140.5MB. Free memory was 79.9MB in the beginning and 78.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:56:54,854 INFO L158 Benchmark]: RCFGBuilder took 255.31ms. Allocated memory is still 140.5MB. Free memory was 78.2MB in the beginning and 69.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 11:56:54,855 INFO L158 Benchmark]: BuchiAutomizer took 3624.52ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 68.9MB in the beginning and 121.9MB in the end (delta: -53.0MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-11-26 11:56:54,855 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 201.3MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:56:54,859 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.56ms. Allocated memory is still 140.5MB. Free memory was 92.0MB in the beginning and 81.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.35ms. Allocated memory is still 140.5MB. Free memory was 81.5MB in the beginning and 79.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.32ms. Allocated memory is still 140.5MB. Free memory was 79.9MB in the beginning and 78.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 255.31ms. Allocated memory is still 140.5MB. Free memory was 78.2MB in the beginning and 69.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3624.52ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 68.9MB in the beginning and 121.9MB in the end (delta: -53.0MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 201.3MB. Free memory is still 121.9MB. 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 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((-2 * i) + 201) and consists of 3 locations. One deterministic module has affine ranking function ((-2 * j) + 39) and consists of 5 locations. One deterministic module has affine ranking function (7 + (-2 * k)) and consists of 3 locations. One nondeterministic module has affine ranking function (7 + (-2 * k)) and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 82 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 90ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 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 11:56:54,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:55,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:55,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:55,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658f66dc-4695-42c8-8629-09d6d0daeb8f/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