./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_22.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/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_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/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 64bit --witnessprinter.graph.data.programhash 2aebec197cf7bd355d2eb5f718c983de149eae8f5ff2da107813d58a220d4744 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:42:20,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:42:20,811 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-26 10:42:20,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:42:20,824 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:42:20,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:42:20,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:42:20,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:42:20,871 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:42:20,876 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:42:20,877 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:42:20,878 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:42:20,878 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:42:20,880 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 10:42:20,880 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 10:42:20,881 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 10:42:20,881 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 10:42:20,882 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 10:42:20,882 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 10:42:20,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:42:20,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 10:42:20,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:42:20,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:42:20,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 10:42:20,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 10:42:20,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 10:42:20,885 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:42:20,886 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:42:20,886 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 10:42:20,886 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:42:20,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:42:20,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:42:20,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:42:20,888 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:42:20,889 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 10:42:20,889 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_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2aebec197cf7bd355d2eb5f718c983de149eae8f5ff2da107813d58a220d4744 [2023-11-26 10:42:21,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:42:21,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:42:21,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:42:21,207 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:42:21,209 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:42:21,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-restricted-15/NO_22.c [2023-11-26 10:42:24,351 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:42:24,601 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:42:24,602 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/sv-benchmarks/c/termination-restricted-15/NO_22.c [2023-11-26 10:42:24,609 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/data/5c7f1ed54/905b66acd1d645fc991b4960a4ba2ef2/FLAG226708ee7 [2023-11-26 10:42:24,626 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/data/5c7f1ed54/905b66acd1d645fc991b4960a4ba2ef2 [2023-11-26 10:42:24,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:42:24,634 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:42:24,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:24,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:42:24,644 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:42:24,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40032f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24, skipping insertion in model container [2023-11-26 10:42:24,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,670 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:42:24,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:24,862 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:42:24,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:24,892 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:42:24,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24 WrapperNode [2023-11-26 10:42:24,893 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:24,894 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:24,894 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:42:24,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:42:24,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,928 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2023-11-26 10:42:24,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:24,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:42:24,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:42:24,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:42:24,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,948 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-26 10:42:24,949 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,956 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:42:24,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:42:24,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:42:24,959 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:42:24,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (1/1) ... [2023-11-26 10:42:24,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:24,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:25,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:25,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 10:42:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:42:25,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:42:25,119 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:42:25,121 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:42:25,190 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:42:25,205 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:42:25,210 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:42:25,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:25 BoogieIcfgContainer [2023-11-26 10:42:25,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:42:25,214 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 10:42:25,214 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 10:42:25,217 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 10:42:25,218 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:42:25,219 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 10:42:24" (1/3) ... [2023-11-26 10:42:25,220 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21726a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:42:25, skipping insertion in model container [2023-11-26 10:42:25,220 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:42:25,220 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:24" (2/3) ... [2023-11-26 10:42:25,221 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21726a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 10:42:25, skipping insertion in model container [2023-11-26 10:42:25,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 10:42:25,221 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:25" (3/3) ... [2023-11-26 10:42:25,223 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_22.c [2023-11-26 10:42:25,280 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 10:42:25,280 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 10:42:25,280 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 10:42:25,281 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 10:42:25,281 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 10:42:25,281 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 10:42:25,281 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 10:42:25,282 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 10:42:25,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 10:42:25,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 10:42:25,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:25,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:25,307 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:42:25,307 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 10:42:25,308 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 10:42:25,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 10:42:25,309 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 10:42:25,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:25,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:25,311 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 10:42:25,312 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 10:42:25,321 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 3#L10-2true [2023-11-26 10:42:25,322 INFO L750 eck$LassoCheckResult]: Loop: 3#L10-2true assume !!(main_~i~0#1 < 100); 5#L10true assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 3#L10-2true [2023-11-26 10:42:25,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:25,329 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 10:42:25,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:25,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019589517] [2023-11-26 10:42:25,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:25,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:25,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:25,448 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:25,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:25,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-26 10:42:25,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:25,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536819799] [2023-11-26 10:42:25,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:25,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:25,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:25,493 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:25,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:25,495 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-26 10:42:25,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:25,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843704015] [2023-11-26 10:42:25,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:25,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:25,647 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 10:42:25,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:25,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843704015] [2023-11-26 10:42:25,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843704015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:25,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:25,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:42:25,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812389759] [2023-11-26 10:42:25,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:25,736 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:42:25,737 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:42:25,737 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:42:25,738 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:42:25,738 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:42:25,738 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:25,738 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:42:25,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:42:25,739 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration1_Loop [2023-11-26 10:42:25,739 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:42:25,739 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:42:25,758 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 10:42:25,772 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 10:42:25,792 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 10:42:25,900 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:42:25,901 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:42:25,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:25,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:25,912 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:25,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 10:42:25,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:42:25,925 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:25,946 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:42:25,947 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:42:25,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:25,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:25,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:25,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:25,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 10:42:25,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:42:25,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:25,987 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:42:25,987 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:42:25,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-26 10:42:25,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:25,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:26,005 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:26,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:42:26,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:26,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 10:42:26,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-26 10:42:26,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:26,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:26,035 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:26,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 10:42:26,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:42:26,039 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:26,061 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:42:26,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-26 10:42:26,070 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:42:26,070 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:42:26,070 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:42:26,070 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:42:26,070 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:42:26,070 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:26,071 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:42:26,071 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:42:26,071 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration1_Loop [2023-11-26 10:42:26,071 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:42:26,071 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:42:26,074 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 10:42:26,078 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 10:42:26,082 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 10:42:26,136 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:42:26,140 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:42:26,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:26,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:26,143 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:26,159 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 10:42:26,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 10:42:26,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:42:26,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:42:26,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:42:26,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:42:26,177 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 10:42:26,177 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 10:42:26,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:42:26,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-26 10:42:26,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:26,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:26,197 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:26,206 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 10:42:26,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:42:26,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:42:26,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:42:26,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:42:26,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 10:42:26,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 10:42:26,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 10:42:26,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:42:26,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:26,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:26,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:26,254 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:26,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 10:42:26,264 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 10:42:26,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:42:26,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:42:26,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:42:26,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:42:26,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:42:26,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:42:26,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:42:26,290 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:42:26,294 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 10:42:26,294 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 10:42:26,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:26,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:26,336 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:26,338 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:42:26,339 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:42:26,339 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:42:26,339 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-26 10:42:26,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-26 10:42:26,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:26,353 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:42:26,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:26,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:42:26,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:26,408 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:42:26,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:26,414 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 10:42:26,467 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 10:42:26,470 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 10:42:26,525 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) Result 20 states and 28 transitions. Complement of second has 6 states. [2023-11-26 10:42:26,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 10:42:26,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 10:42:26,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-26 10:42:26,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-26 10:42:26,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:26,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-26 10:42:26,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:26,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-26 10:42:26,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:26,548 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2023-11-26 10:42:26,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 10:42:26,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2023-11-26 10:42:26,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-26 10:42:26,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-26 10:42:26,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-26 10:42:26,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:42:26,561 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-26 10:42:26,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-26 10:42:26,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-26 10:42:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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 10:42:26,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-26 10:42:26,596 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-26 10:42:26,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:26,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:26,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:26,602 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 10:42:26,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:26,616 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2023-11-26 10:42:26,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2023-11-26 10:42:26,617 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 10:42:26,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2023-11-26 10:42:26,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-26 10:42:26,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-26 10:42:26,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2023-11-26 10:42:26,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:26,620 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-26 10:42:26,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2023-11-26 10:42:26,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-11-26 10:42:26,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 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 10:42:26,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2023-11-26 10:42:26,622 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-26 10:42:26,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:26,623 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-26 10:42:26,623 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 10:42:26,624 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2023-11-26 10:42:26,625 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 10:42:26,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:26,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:26,626 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-26 10:42:26,626 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 10:42:26,627 INFO L748 eck$LassoCheckResult]: Stem: 82#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 83#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 84#L10-2 assume !!(main_~i~0#1 < 100); 81#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 79#L10-2 [2023-11-26 10:42:26,627 INFO L750 eck$LassoCheckResult]: Loop: 79#L10-2 assume !!(main_~i~0#1 < 100); 80#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 79#L10-2 [2023-11-26 10:42:26,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:26,628 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-26 10:42:26,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:26,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314240203] [2023-11-26 10:42:26,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:26,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:26,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:26,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:26,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:26,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-11-26 10:42:26,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:26,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544178436] [2023-11-26 10:42:26,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:26,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:26,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:26,654 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:26,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:26,655 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-11-26 10:42:26,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:26,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416094728] [2023-11-26 10:42:26,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:26,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:26,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-26 10:42:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:26,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:26,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416094728] [2023-11-26 10:42:26,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416094728] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:26,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069340520] [2023-11-26 10:42:26,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:26,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:26,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:26,751 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:26,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 10:42:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:26,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:42:26,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:26,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:26,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:26,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:26,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069340520] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:26,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:26,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-26 10:42:26,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083152400] [2023-11-26 10:42:26,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:26,919 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:42:26,919 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:42:26,919 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:42:26,920 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:42:26,920 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:42:26,920 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:26,920 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:42:26,920 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:42:26,920 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration2_Loop [2023-11-26 10:42:26,920 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:42:26,920 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:42:26,923 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 10:42:26,927 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 10:42:26,936 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 10:42:26,980 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:42:26,980 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:42:26,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:26,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:26,982 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:26,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-26 10:42:26,994 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:42:26,994 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:27,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:42:27,017 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:42:27,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:27,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:27,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:27,024 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:27,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-26 10:42:27,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:42:27,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:27,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:27,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:27,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:27,071 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:27,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-26 10:42:27,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:42:27,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:27,103 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:42:27,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:27,112 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:42:27,112 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:42:27,112 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:42:27,112 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:42:27,112 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:42:27,113 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:27,113 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:42:27,113 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:42:27,113 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration2_Loop [2023-11-26 10:42:27,113 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:42:27,113 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:42:27,114 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 10:42:27,122 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 10:42:27,131 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 10:42:27,177 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:42:27,178 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:42:27,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:27,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:27,179 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:27,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 10:42:27,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:42:27,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:42:27,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:42:27,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:42:27,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 10:42:27,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 10:42:27,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-26 10:42:27,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:42:27,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:27,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:27,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:27,226 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:27,236 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 10:42:27,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:42:27,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:42:27,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:42:27,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:42:27,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:42:27,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:42:27,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:42:27,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-26 10:42:27,277 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:42:27,281 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 10:42:27,281 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 10:42:27,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:27,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:27,285 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:27,289 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:42:27,290 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:42:27,290 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:42:27,290 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-26 10:42:27,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-26 10:42:27,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:27,301 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:42:27,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:27,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:42:27,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:27,346 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:42:27,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:27,349 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 10:42:27,349 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 10:42:27,350 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 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 10:42:27,362 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. 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 10 states and 13 transitions. Complement of second has 5 states. [2023-11-26 10:42:27,362 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 10:42:27,363 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 10:42:27,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-26 10:42:27,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-26 10:42:27,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:27,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-26 10:42:27,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:27,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-26 10:42:27,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:27,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2023-11-26 10:42:27,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 10:42:27,366 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2023-11-26 10:42:27,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-26 10:42:27,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-26 10:42:27,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2023-11-26 10:42:27,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:42:27,367 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-26 10:42:27,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2023-11-26 10:42:27,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-26 10:42:27,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 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 10:42:27,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-26 10:42:27,369 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-26 10:42:27,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:27,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:42:27,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:42:27,370 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 10:42:27,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:27,393 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2023-11-26 10:42:27,393 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2023-11-26 10:42:27,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 10:42:27,394 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 13 transitions. [2023-11-26 10:42:27,394 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-26 10:42:27,395 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-26 10:42:27,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2023-11-26 10:42:27,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:27,395 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-26 10:42:27,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2023-11-26 10:42:27,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-26 10:42:27,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 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 10:42:27,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-11-26 10:42:27,397 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-26 10:42:27,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:42:27,399 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-26 10:42:27,399 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 10:42:27,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2023-11-26 10:42:27,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 10:42:27,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:27,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:27,400 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1] [2023-11-26 10:42:27,400 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 10:42:27,401 INFO L748 eck$LassoCheckResult]: Stem: 192#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 193#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 194#L10-2 assume !!(main_~i~0#1 < 100); 191#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 189#L10-2 assume !!(main_~i~0#1 < 100); 190#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 200#L10-2 assume !!(main_~i~0#1 < 100); 199#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 198#L10-2 assume !!(main_~i~0#1 < 100); 197#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 196#L10-2 [2023-11-26 10:42:27,401 INFO L750 eck$LassoCheckResult]: Loop: 196#L10-2 assume !!(main_~i~0#1 < 100); 195#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 196#L10-2 [2023-11-26 10:42:27,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:27,401 INFO L85 PathProgramCache]: Analyzing trace with hash 742492623, now seen corresponding path program 2 times [2023-11-26 10:42:27,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:27,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995351234] [2023-11-26 10:42:27,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:27,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:27,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:27,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:27,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:27,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:27,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-11-26 10:42:27,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:27,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322378990] [2023-11-26 10:42:27,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:27,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:27,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:27,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:27,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:27,430 INFO L85 PathProgramCache]: Analyzing trace with hash 570839924, now seen corresponding path program 2 times [2023-11-26 10:42:27,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:27,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768280371] [2023-11-26 10:42:27,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:27,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:27,536 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:27,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:27,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768280371] [2023-11-26 10:42:27,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768280371] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:27,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101872089] [2023-11-26 10:42:27,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:42:27,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:27,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:27,544 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:27,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-26 10:42:27,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 10:42:27,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:27,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:42:27,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:27,620 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:27,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:27,709 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:27,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101872089] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:27,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:27,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-11-26 10:42:27,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131418400] [2023-11-26 10:42:27,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:27,734 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:42:27,734 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:42:27,734 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:42:27,735 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:42:27,735 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:42:27,735 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:27,735 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:42:27,735 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:42:27,735 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration3_Loop [2023-11-26 10:42:27,735 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:42:27,735 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:42:27,736 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 10:42:27,744 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 10:42:27,748 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 10:42:27,791 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:42:27,791 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:42:27,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:27,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:27,801 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:27,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-26 10:42:27,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:42:27,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:27,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:27,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:27,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:27,850 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:27,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:42:27,855 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:27,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-26 10:42:27,879 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:42:27,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:27,888 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:42:27,888 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:42:27,888 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:42:27,889 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:42:27,889 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:42:27,889 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:27,889 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:42:27,889 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:42:27,889 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration3_Loop [2023-11-26 10:42:27,889 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:42:27,889 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:42:27,890 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 10:42:27,900 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 10:42:27,905 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 10:42:27,951 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:42:27,952 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:42:27,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:27,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:27,953 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:27,962 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 10:42:27,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-26 10:42:27,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:42:27,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:42:27,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:42:27,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:42:27,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:42:27,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:42:27,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:42:27,993 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:42:27,997 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 10:42:27,997 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 10:42:27,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:27,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:28,004 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:28,006 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:42:28,006 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:42:28,006 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:42:28,006 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-26 10:42:28,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-26 10:42:28,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:28,016 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:42:28,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:28,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:42:28,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:28,065 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:42:28,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:28,071 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 10:42:28,074 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 10:42:28,074 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 10:42:28,086 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 13 states and 14 transitions. Complement of second has 5 states. [2023-11-26 10:42:28,086 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 10:42:28,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 10:42:28,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-11-26 10:42:28,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-26 10:42:28,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:28,091 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 10:42:28,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:28,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:42:28,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:28,149 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:42:28,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:28,152 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 10:42:28,154 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 10:42:28,154 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 10:42:28,163 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 13 states and 14 transitions. Complement of second has 5 states. [2023-11-26 10:42:28,164 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 10:42:28,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 10:42:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-11-26 10:42:28,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-26 10:42:28,167 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:28,167 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 10:42:28,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:28,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:42:28,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:28,209 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:42:28,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:28,217 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 10:42:28,218 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 10:42:28,218 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 10:42:28,233 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 17 states and 19 transitions. Complement of second has 4 states. [2023-11-26 10:42:28,233 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 10:42:28,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 10:42:28,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-26 10:42:28,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-26 10:42:28,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:28,237 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 12 letters. Loop has 2 letters. [2023-11-26 10:42:28,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:28,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-26 10:42:28,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:28,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2023-11-26 10:42:28,245 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 10:42:28,246 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 16 transitions. [2023-11-26 10:42:28,246 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-26 10:42:28,246 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-26 10:42:28,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2023-11-26 10:42:28,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:42:28,246 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-26 10:42:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2023-11-26 10:42:28,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-26 10:42:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 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 10:42:28,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2023-11-26 10:42:28,249 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2023-11-26 10:42:28,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:28,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 10:42:28,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:42:28,251 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 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 10:42:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:28,305 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2023-11-26 10:42:28,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 34 transitions. [2023-11-26 10:42:28,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 10:42:28,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 28 transitions. [2023-11-26 10:42:28,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-11-26 10:42:28,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2023-11-26 10:42:28,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 28 transitions. [2023-11-26 10:42:28,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:42:28,313 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2023-11-26 10:42:28,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 28 transitions. [2023-11-26 10:42:28,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2023-11-26 10:42:28,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.08) internal successors, (27), 24 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 10:42:28,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-11-26 10:42:28,320 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-11-26 10:42:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 10:42:28,324 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-11-26 10:42:28,324 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 10:42:28,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 27 transitions. [2023-11-26 10:42:28,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 10:42:28,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:28,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:28,330 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 9, 1, 1] [2023-11-26 10:42:28,330 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 10:42:28,331 INFO L748 eck$LassoCheckResult]: Stem: 505#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 506#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 507#L10-2 assume !!(main_~i~0#1 < 100); 504#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 499#L10-2 assume !!(main_~i~0#1 < 100); 500#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 523#L10-2 assume !!(main_~i~0#1 < 100); 522#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 521#L10-2 assume !!(main_~i~0#1 < 100); 520#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 519#L10-2 assume !!(main_~i~0#1 < 100); 518#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 517#L10-2 assume !!(main_~i~0#1 < 100); 516#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 515#L10-2 assume !!(main_~i~0#1 < 100); 514#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 513#L10-2 assume !!(main_~i~0#1 < 100); 512#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 511#L10-2 assume !!(main_~i~0#1 < 100); 510#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 509#L10-2 assume !!(main_~i~0#1 < 100); 503#L10 [2023-11-26 10:42:28,331 INFO L750 eck$LassoCheckResult]: Loop: 503#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 508#L10-2 assume !!(main_~i~0#1 < 100); 503#L10 [2023-11-26 10:42:28,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:28,331 INFO L85 PathProgramCache]: Analyzing trace with hash -926509747, now seen corresponding path program 3 times [2023-11-26 10:42:28,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:28,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569283710] [2023-11-26 10:42:28,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:28,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:28,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:28,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:28,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:28,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2023-11-26 10:42:28,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:28,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200146732] [2023-11-26 10:42:28,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:28,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:28,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:28,404 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:28,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:28,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1317636150, now seen corresponding path program 4 times [2023-11-26 10:42:28,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:28,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847772355] [2023-11-26 10:42:28,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:28,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:28,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:28,439 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:28,468 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:42:28,468 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:42:28,468 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:42:28,468 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:42:28,469 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:42:28,469 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:28,469 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:42:28,469 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:42:28,469 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration4_Loop [2023-11-26 10:42:28,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:42:28,469 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:42:28,470 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 10:42:28,474 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 10:42:28,479 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 10:42:28,515 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:42:28,515 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:42:28,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:28,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:28,517 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:28,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-26 10:42:28,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:42:28,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:28,553 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:42:28,553 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:42:28,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:28,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:28,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:28,562 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:28,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:42:28,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:28,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-26 10:42:28,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:28,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:28,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:28,600 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:28,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-26 10:42:28,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:42:28,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:28,641 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:42:28,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:28,646 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:42:28,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:42:28,646 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:42:28,646 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:42:28,646 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:42:28,646 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:28,646 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:42:28,646 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:42:28,647 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration4_Loop [2023-11-26 10:42:28,647 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:42:28,647 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:42:28,648 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 10:42:28,655 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 10:42:28,665 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 10:42:28,706 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:42:28,706 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:42:28,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:28,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:28,708 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:28,712 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 10:42:28,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:42:28,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:42:28,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:42:28,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:42:28,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:42:28,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-26 10:42:28,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:42:28,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:42:28,745 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:42:28,748 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 10:42:28,748 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 10:42:28,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:28,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:28,752 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:28,756 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:42:28,756 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:42:28,756 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:42:28,757 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 99 Supporting invariants [] [2023-11-26 10:42:28,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-26 10:42:28,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:28,769 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:42:28,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:28,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:42:28,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:28,849 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:42:28,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:28,867 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 10:42:28,868 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 10:42:28,868 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 27 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 10:42:28,885 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 27 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 38 states and 42 transitions. Complement of second has 5 states. [2023-11-26 10:42:28,885 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 10:42:28,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 10:42:28,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-26 10:42:28,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 2 letters. [2023-11-26 10:42:28,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:28,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 23 letters. Loop has 2 letters. [2023-11-26 10:42:28,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:28,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 4 letters. [2023-11-26 10:42:28,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:28,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 42 transitions. [2023-11-26 10:42:28,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 10:42:28,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 28 states and 31 transitions. [2023-11-26 10:42:28,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-26 10:42:28,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-26 10:42:28,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 31 transitions. [2023-11-26 10:42:28,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:42:28,894 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 31 transitions. [2023-11-26 10:42:28,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 31 transitions. [2023-11-26 10:42:28,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2023-11-26 10:42:28,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 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 10:42:28,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-11-26 10:42:28,898 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-11-26 10:42:28,898 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-11-26 10:42:28,898 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-26 10:42:28,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2023-11-26 10:42:28,901 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 10:42:28,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:28,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:28,904 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [12, 10, 1, 1, 1] [2023-11-26 10:42:28,904 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 10:42:28,904 INFO L748 eck$LassoCheckResult]: Stem: 659#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 660#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 661#L10-2 assume !!(main_~i~0#1 < 100); 656#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 657#L10-2 assume !!(main_~i~0#1 < 100); 658#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 654#L10-2 assume !!(main_~i~0#1 < 100); 655#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 677#L10-2 assume !!(main_~i~0#1 < 100); 676#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 675#L10-2 assume !!(main_~i~0#1 < 100); 674#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 673#L10-2 assume !!(main_~i~0#1 < 100); 672#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 671#L10-2 assume !!(main_~i~0#1 < 100); 670#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 669#L10-2 assume !!(main_~i~0#1 < 100); 668#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 667#L10-2 assume !!(main_~i~0#1 < 100); 666#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 665#L10-2 assume !!(main_~i~0#1 < 100); 664#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 663#L10-2 assume !!(main_~i~0#1 < 100); 652#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 662#L10-2 assume !!(main_~i~0#1 < 100); 653#L10 [2023-11-26 10:42:28,904 INFO L750 eck$LassoCheckResult]: Loop: 653#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 651#L10-2 assume !!(main_~i~0#1 < 100); 653#L10 [2023-11-26 10:42:28,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:28,905 INFO L85 PathProgramCache]: Analyzing trace with hash 767012677, now seen corresponding path program 3 times [2023-11-26 10:42:28,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:28,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504015296] [2023-11-26 10:42:28,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:28,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:29,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:29,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:29,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:29,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:29,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504015296] [2023-11-26 10:42:29,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504015296] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:29,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602209718] [2023-11-26 10:42:29,258 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 10:42:29,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:29,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:29,262 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:29,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-26 10:42:29,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2023-11-26 10:42:29,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:29,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-26 10:42:29,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:29,369 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:29,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:29,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602209718] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:29,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:29,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2023-11-26 10:42:29,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212600192] [2023-11-26 10:42:29,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:29,608 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 10:42:29,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:29,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2023-11-26 10:42:29,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:29,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463973546] [2023-11-26 10:42:29,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:29,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:29,612 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:29,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:29,636 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:42:29,636 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:42:29,636 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:42:29,636 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:42:29,636 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 10:42:29,636 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:29,636 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:42:29,636 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:42:29,636 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration5_Loop [2023-11-26 10:42:29,636 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:42:29,637 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:42:29,638 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 10:42:29,641 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 10:42:29,644 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 10:42:29,676 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:42:29,677 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 10:42:29,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:29,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:29,678 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:29,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:42:29,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:29,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-26 10:42:29,717 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:42:29,718 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:42:29,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:29,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:29,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:29,727 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:29,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:42:29,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:29,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-26 10:42:29,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 10:42:29,755 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 10:42:29,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:29,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:29,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:29,762 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:29,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 10:42:29,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:29,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-26 10:42:29,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:29,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:29,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:29,806 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:29,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-26 10:42:29,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 10:42:29,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 10:42:29,832 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 10:42:29,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:29,835 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 10:42:29,835 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 10:42:29,835 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 10:42:29,835 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 10:42:29,835 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 10:42:29,835 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:29,835 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 10:42:29,835 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 10:42:29,835 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_22.c_Iteration5_Loop [2023-11-26 10:42:29,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 10:42:29,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 10:42:29,837 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 10:42:29,840 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 10:42:29,843 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 10:42:29,882 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 10:42:29,882 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 10:42:29,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:29,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:29,883 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:29,894 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 10:42:29,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:42:29,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:42:29,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:42:29,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:42:29,909 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 10:42:29,909 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 10:42:29,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-26 10:42:29,925 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:42:29,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:29,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:29,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:29,930 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:29,933 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 10:42:29,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:42:29,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:42:29,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:42:29,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:42:29,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 10:42:29,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 10:42:29,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-26 10:42:29,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 10:42:29,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:29,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:29,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:29,970 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:29,978 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 10:42:29,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 10:42:29,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 10:42:29,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 10:42:29,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 10:42:29,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 10:42:29,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 10:42:29,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 10:42:29,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-26 10:42:30,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 10:42:30,010 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 10:42:30,010 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 10:42:30,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 10:42:30,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:30,014 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:30,018 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 10:42:30,018 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 10:42:30,019 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 10:42:30,019 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 99 Supporting invariants [] [2023-11-26 10:42:30,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-26 10:42:30,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:30,025 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 10:42:30,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:30,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:42:30,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:30,098 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:42:30,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:30,113 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 10:42:30,114 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 10:42:30,114 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:30,123 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 42 transitions. Complement of second has 5 states. [2023-11-26 10:42:30,123 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 10:42:30,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:30,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-26 10:42:30,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 25 letters. Loop has 2 letters. [2023-11-26 10:42:30,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:30,124 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 10:42:30,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:30,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:42:30,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:30,178 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:42:30,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:30,193 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 10:42:30,193 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 10:42:30,194 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:30,208 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 43 transitions. Complement of second has 5 states. [2023-11-26 10:42:30,209 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 10:42:30,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:30,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-11-26 10:42:30,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 25 letters. Loop has 2 letters. [2023-11-26 10:42:30,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:30,210 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 10:42:30,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:30,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:42:30,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:30,272 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:42:30,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:30,287 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 10:42:30,288 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 2 loop predicates [2023-11-26 10:42:30,288 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:30,297 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 45 transitions. Complement of second has 4 states. [2023-11-26 10:42:30,297 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 10:42:30,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:30,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-26 10:42:30,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 2 letters. [2023-11-26 10:42:30,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:30,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 27 letters. Loop has 2 letters. [2023-11-26 10:42:30,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:30,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 4 letters. [2023-11-26 10:42:30,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 10:42:30,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 45 transitions. [2023-11-26 10:42:30,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-26 10:42:30,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 29 states and 32 transitions. [2023-11-26 10:42:30,302 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-26 10:42:30,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-26 10:42:30,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 32 transitions. [2023-11-26 10:42:30,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:42:30,303 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-26 10:42:30,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 32 transitions. [2023-11-26 10:42:30,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2023-11-26 10:42:30,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 25 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 10:42:30,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2023-11-26 10:42:30,305 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2023-11-26 10:42:30,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:30,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-26 10:42:30,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-26 10:42:30,307 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 24 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 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 10:42:30,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:30,381 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2023-11-26 10:42:30,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 65 transitions. [2023-11-26 10:42:30,382 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:42:30,383 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 51 states and 53 transitions. [2023-11-26 10:42:30,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-26 10:42:30,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-26 10:42:30,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 53 transitions. [2023-11-26 10:42:30,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:42:30,384 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 53 transitions. [2023-11-26 10:42:30,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 53 transitions. [2023-11-26 10:42:30,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2023-11-26 10:42:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.04) internal successors, (52), 49 states have internal predecessors, (52), 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 10:42:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2023-11-26 10:42:30,391 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 52 transitions. [2023-11-26 10:42:30,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 10:42:30,392 INFO L428 stractBuchiCegarLoop]: Abstraction has 50 states and 52 transitions. [2023-11-26 10:42:30,392 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-26 10:42:30,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 52 transitions. [2023-11-26 10:42:30,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:42:30,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:30,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:30,395 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [24, 22, 1, 1, 1] [2023-11-26 10:42:30,395 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-26 10:42:30,396 INFO L748 eck$LassoCheckResult]: Stem: 1326#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1327#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 1320#L10-2 assume !!(main_~i~0#1 < 100); 1321#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1324#L10-2 assume !!(main_~i~0#1 < 100); 1325#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1322#L10-2 assume !!(main_~i~0#1 < 100); 1323#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1369#L10-2 assume !!(main_~i~0#1 < 100); 1368#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1367#L10-2 assume !!(main_~i~0#1 < 100); 1366#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1365#L10-2 assume !!(main_~i~0#1 < 100); 1364#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1363#L10-2 assume !!(main_~i~0#1 < 100); 1362#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1361#L10-2 assume !!(main_~i~0#1 < 100); 1360#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1359#L10-2 assume !!(main_~i~0#1 < 100); 1358#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1357#L10-2 assume !!(main_~i~0#1 < 100); 1356#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1355#L10-2 assume !!(main_~i~0#1 < 100); 1354#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1353#L10-2 assume !!(main_~i~0#1 < 100); 1352#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1351#L10-2 assume !!(main_~i~0#1 < 100); 1350#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1349#L10-2 assume !!(main_~i~0#1 < 100); 1348#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1347#L10-2 assume !!(main_~i~0#1 < 100); 1346#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1345#L10-2 assume !!(main_~i~0#1 < 100); 1344#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1343#L10-2 assume !!(main_~i~0#1 < 100); 1342#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1341#L10-2 assume !!(main_~i~0#1 < 100); 1340#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1339#L10-2 assume !!(main_~i~0#1 < 100); 1338#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1337#L10-2 assume !!(main_~i~0#1 < 100); 1336#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1335#L10-2 assume !!(main_~i~0#1 < 100); 1334#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1333#L10-2 assume !!(main_~i~0#1 < 100); 1332#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1331#L10-2 assume !!(main_~i~0#1 < 100); 1329#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 1328#L10-2 assume !!(main_~i~0#1 < 100); 1330#L10 [2023-11-26 10:42:30,396 INFO L750 eck$LassoCheckResult]: Loop: 1330#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1331#L10-2 assume !!(main_~i~0#1 < 100); 1329#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 1328#L10-2 assume !!(main_~i~0#1 < 100); 1330#L10 [2023-11-26 10:42:30,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:30,396 INFO L85 PathProgramCache]: Analyzing trace with hash -694298463, now seen corresponding path program 4 times [2023-11-26 10:42:30,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:30,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114886829] [2023-11-26 10:42:30,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:30,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:30,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:31,052 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:31,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:31,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114886829] [2023-11-26 10:42:31,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114886829] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:31,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239858269] [2023-11-26 10:42:31,053 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-26 10:42:31,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:31,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:31,054 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:31,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-26 10:42:31,114 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-26 10:42:31,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:31,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-26 10:42:31,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:31,216 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:31,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:32,156 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:32,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239858269] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:32,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:32,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2023-11-26 10:42:32,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393565305] [2023-11-26 10:42:32,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:32,158 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 10:42:32,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:32,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 1 times [2023-11-26 10:42:32,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:32,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048108417] [2023-11-26 10:42:32,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:32,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:32,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:32,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:32,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:32,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-26 10:42:32,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-26 10:42:32,205 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. cyclomatic complexity: 3 Second operand has 48 states, 48 states have (on average 2.0) internal successors, (96), 48 states have internal predecessors, (96), 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 10:42:32,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:32,414 INFO L93 Difference]: Finished difference Result 123 states and 125 transitions. [2023-11-26 10:42:32,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 125 transitions. [2023-11-26 10:42:32,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:42:32,418 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 99 states and 101 transitions. [2023-11-26 10:42:32,418 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-26 10:42:32,418 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-26 10:42:32,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 101 transitions. [2023-11-26 10:42:32,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:42:32,419 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 101 transitions. [2023-11-26 10:42:32,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 101 transitions. [2023-11-26 10:42:32,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2023-11-26 10:42:32,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.0204081632653061) internal successors, (100), 97 states have internal predecessors, (100), 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 10:42:32,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2023-11-26 10:42:32,425 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 100 transitions. [2023-11-26 10:42:32,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-26 10:42:32,426 INFO L428 stractBuchiCegarLoop]: Abstraction has 98 states and 100 transitions. [2023-11-26 10:42:32,426 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-26 10:42:32,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 100 transitions. [2023-11-26 10:42:32,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:42:32,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:32,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:32,432 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [48, 46, 1, 1, 1] [2023-11-26 10:42:32,432 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-26 10:42:32,432 INFO L748 eck$LassoCheckResult]: Stem: 1838#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1839#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 1832#L10-2 assume !!(main_~i~0#1 < 100); 1833#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1836#L10-2 assume !!(main_~i~0#1 < 100); 1837#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1834#L10-2 assume !!(main_~i~0#1 < 100); 1835#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1929#L10-2 assume !!(main_~i~0#1 < 100); 1928#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1927#L10-2 assume !!(main_~i~0#1 < 100); 1926#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1925#L10-2 assume !!(main_~i~0#1 < 100); 1924#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1923#L10-2 assume !!(main_~i~0#1 < 100); 1922#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1921#L10-2 assume !!(main_~i~0#1 < 100); 1920#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1919#L10-2 assume !!(main_~i~0#1 < 100); 1918#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1917#L10-2 assume !!(main_~i~0#1 < 100); 1916#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1915#L10-2 assume !!(main_~i~0#1 < 100); 1914#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1913#L10-2 assume !!(main_~i~0#1 < 100); 1912#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1911#L10-2 assume !!(main_~i~0#1 < 100); 1910#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1909#L10-2 assume !!(main_~i~0#1 < 100); 1908#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1907#L10-2 assume !!(main_~i~0#1 < 100); 1906#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1905#L10-2 assume !!(main_~i~0#1 < 100); 1904#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1903#L10-2 assume !!(main_~i~0#1 < 100); 1902#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1901#L10-2 assume !!(main_~i~0#1 < 100); 1900#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1899#L10-2 assume !!(main_~i~0#1 < 100); 1898#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1897#L10-2 assume !!(main_~i~0#1 < 100); 1896#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1895#L10-2 assume !!(main_~i~0#1 < 100); 1894#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1893#L10-2 assume !!(main_~i~0#1 < 100); 1892#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1891#L10-2 assume !!(main_~i~0#1 < 100); 1890#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1889#L10-2 assume !!(main_~i~0#1 < 100); 1888#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1887#L10-2 assume !!(main_~i~0#1 < 100); 1886#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1885#L10-2 assume !!(main_~i~0#1 < 100); 1884#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1883#L10-2 assume !!(main_~i~0#1 < 100); 1882#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1881#L10-2 assume !!(main_~i~0#1 < 100); 1880#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1879#L10-2 assume !!(main_~i~0#1 < 100); 1878#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1877#L10-2 assume !!(main_~i~0#1 < 100); 1876#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1875#L10-2 assume !!(main_~i~0#1 < 100); 1874#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1873#L10-2 assume !!(main_~i~0#1 < 100); 1872#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1871#L10-2 assume !!(main_~i~0#1 < 100); 1870#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1869#L10-2 assume !!(main_~i~0#1 < 100); 1868#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1867#L10-2 assume !!(main_~i~0#1 < 100); 1866#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1865#L10-2 assume !!(main_~i~0#1 < 100); 1864#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1863#L10-2 assume !!(main_~i~0#1 < 100); 1862#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1861#L10-2 assume !!(main_~i~0#1 < 100); 1860#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1859#L10-2 assume !!(main_~i~0#1 < 100); 1858#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1857#L10-2 assume !!(main_~i~0#1 < 100); 1856#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1855#L10-2 assume !!(main_~i~0#1 < 100); 1854#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1853#L10-2 assume !!(main_~i~0#1 < 100); 1852#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1851#L10-2 assume !!(main_~i~0#1 < 100); 1850#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1849#L10-2 assume !!(main_~i~0#1 < 100); 1848#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1847#L10-2 assume !!(main_~i~0#1 < 100); 1846#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1845#L10-2 assume !!(main_~i~0#1 < 100); 1844#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1843#L10-2 assume !!(main_~i~0#1 < 100); 1841#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 1840#L10-2 assume !!(main_~i~0#1 < 100); 1842#L10 [2023-11-26 10:42:32,432 INFO L750 eck$LassoCheckResult]: Loop: 1842#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 1843#L10-2 assume !!(main_~i~0#1 < 100); 1841#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 1840#L10-2 assume !!(main_~i~0#1 < 100); 1842#L10 [2023-11-26 10:42:32,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:32,433 INFO L85 PathProgramCache]: Analyzing trace with hash -818401447, now seen corresponding path program 5 times [2023-11-26 10:42:32,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:32,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838870172] [2023-11-26 10:42:32,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:32,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:34,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:34,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838870172] [2023-11-26 10:42:34,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838870172] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:34,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063987151] [2023-11-26 10:42:34,345 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-26 10:42:34,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:34,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:34,350 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:34,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-26 10:42:34,439 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2023-11-26 10:42:34,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:34,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-26 10:42:34,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:34,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:34,649 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:36,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:36,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063987151] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:36,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:36,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 52 [2023-11-26 10:42:36,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625002634] [2023-11-26 10:42:36,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:36,165 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 10:42:36,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:36,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2023-11-26 10:42:36,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:36,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672662017] [2023-11-26 10:42:36,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:36,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:36,169 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:36,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:36,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:36,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-26 10:42:36,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2023-11-26 10:42:36,200 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. cyclomatic complexity: 3 Second operand has 52 states, 52 states have (on average 2.019230769230769) internal successors, (105), 52 states have internal predecessors, (105), 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 10:42:36,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:42:36,393 INFO L93 Difference]: Finished difference Result 111 states and 113 transitions. [2023-11-26 10:42:36,394 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 113 transitions. [2023-11-26 10:42:36,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:42:36,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 107 states and 109 transitions. [2023-11-26 10:42:36,402 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-26 10:42:36,402 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-26 10:42:36,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 109 transitions. [2023-11-26 10:42:36,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 10:42:36,403 INFO L218 hiAutomatonCegarLoop]: Abstraction has 107 states and 109 transitions. [2023-11-26 10:42:36,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 109 transitions. [2023-11-26 10:42:36,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2023-11-26 10:42:36,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 106 states have (on average 1.0188679245283019) internal successors, (108), 105 states have internal predecessors, (108), 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 10:42:36,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 108 transitions. [2023-11-26 10:42:36,425 INFO L240 hiAutomatonCegarLoop]: Abstraction has 106 states and 108 transitions. [2023-11-26 10:42:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-26 10:42:36,427 INFO L428 stractBuchiCegarLoop]: Abstraction has 106 states and 108 transitions. [2023-11-26 10:42:36,427 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-26 10:42:36,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 108 transitions. [2023-11-26 10:42:36,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 10:42:36,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 10:42:36,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 10:42:36,431 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [52, 50, 1, 1, 1] [2023-11-26 10:42:36,432 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-26 10:42:36,432 INFO L748 eck$LassoCheckResult]: Stem: 2678#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2679#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 2672#L10-2 assume !!(main_~i~0#1 < 100); 2673#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2676#L10-2 assume !!(main_~i~0#1 < 100); 2677#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2674#L10-2 assume !!(main_~i~0#1 < 100); 2675#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2777#L10-2 assume !!(main_~i~0#1 < 100); 2776#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2775#L10-2 assume !!(main_~i~0#1 < 100); 2774#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2773#L10-2 assume !!(main_~i~0#1 < 100); 2772#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2771#L10-2 assume !!(main_~i~0#1 < 100); 2770#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2769#L10-2 assume !!(main_~i~0#1 < 100); 2768#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2767#L10-2 assume !!(main_~i~0#1 < 100); 2766#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2765#L10-2 assume !!(main_~i~0#1 < 100); 2764#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2763#L10-2 assume !!(main_~i~0#1 < 100); 2762#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2761#L10-2 assume !!(main_~i~0#1 < 100); 2760#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2759#L10-2 assume !!(main_~i~0#1 < 100); 2758#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2757#L10-2 assume !!(main_~i~0#1 < 100); 2756#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2755#L10-2 assume !!(main_~i~0#1 < 100); 2754#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2753#L10-2 assume !!(main_~i~0#1 < 100); 2752#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2751#L10-2 assume !!(main_~i~0#1 < 100); 2750#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2749#L10-2 assume !!(main_~i~0#1 < 100); 2748#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2747#L10-2 assume !!(main_~i~0#1 < 100); 2746#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2745#L10-2 assume !!(main_~i~0#1 < 100); 2744#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2743#L10-2 assume !!(main_~i~0#1 < 100); 2742#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2741#L10-2 assume !!(main_~i~0#1 < 100); 2740#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2739#L10-2 assume !!(main_~i~0#1 < 100); 2738#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2737#L10-2 assume !!(main_~i~0#1 < 100); 2736#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2735#L10-2 assume !!(main_~i~0#1 < 100); 2734#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2733#L10-2 assume !!(main_~i~0#1 < 100); 2732#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2731#L10-2 assume !!(main_~i~0#1 < 100); 2730#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2729#L10-2 assume !!(main_~i~0#1 < 100); 2728#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2727#L10-2 assume !!(main_~i~0#1 < 100); 2726#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2725#L10-2 assume !!(main_~i~0#1 < 100); 2724#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2723#L10-2 assume !!(main_~i~0#1 < 100); 2722#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2721#L10-2 assume !!(main_~i~0#1 < 100); 2720#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2719#L10-2 assume !!(main_~i~0#1 < 100); 2718#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2717#L10-2 assume !!(main_~i~0#1 < 100); 2716#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2715#L10-2 assume !!(main_~i~0#1 < 100); 2714#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2713#L10-2 assume !!(main_~i~0#1 < 100); 2712#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2711#L10-2 assume !!(main_~i~0#1 < 100); 2710#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2709#L10-2 assume !!(main_~i~0#1 < 100); 2708#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2707#L10-2 assume !!(main_~i~0#1 < 100); 2706#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2705#L10-2 assume !!(main_~i~0#1 < 100); 2704#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2703#L10-2 assume !!(main_~i~0#1 < 100); 2702#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2701#L10-2 assume !!(main_~i~0#1 < 100); 2700#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2699#L10-2 assume !!(main_~i~0#1 < 100); 2698#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2697#L10-2 assume !!(main_~i~0#1 < 100); 2696#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2695#L10-2 assume !!(main_~i~0#1 < 100); 2694#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2693#L10-2 assume !!(main_~i~0#1 < 100); 2692#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2691#L10-2 assume !!(main_~i~0#1 < 100); 2690#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2689#L10-2 assume !!(main_~i~0#1 < 100); 2688#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2687#L10-2 assume !!(main_~i~0#1 < 100); 2686#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2685#L10-2 assume !!(main_~i~0#1 < 100); 2684#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2683#L10-2 assume !!(main_~i~0#1 < 100); 2681#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 2680#L10-2 assume !!(main_~i~0#1 < 100); 2682#L10 [2023-11-26 10:42:36,432 INFO L750 eck$LassoCheckResult]: Loop: 2682#L10 assume main_~i~0#1 < 50;main_~i~0#1 := 1 + main_~i~0#1; 2683#L10-2 assume !!(main_~i~0#1 < 100); 2681#L10 assume !(main_~i~0#1 < 50);main_~i~0#1 := main_~i~0#1 - 1; 2680#L10-2 assume !!(main_~i~0#1 < 100); 2682#L10 [2023-11-26 10:42:36,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:36,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1468745677, now seen corresponding path program 6 times [2023-11-26 10:42:36,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:36,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963666258] [2023-11-26 10:42:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:36,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:36,460 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:36,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:36,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:36,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 3 times [2023-11-26 10:42:36,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:36,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961038174] [2023-11-26 10:42:36,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:36,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:36,487 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:36,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:36,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:36,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1914756667, now seen corresponding path program 7 times [2023-11-26 10:42:36,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:36,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288259916] [2023-11-26 10:42:36,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:36,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:36,513 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:36,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:38,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:38,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 10:42:38 BoogieIcfgContainer [2023-11-26 10:42:38,537 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 10:42:38,538 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:42:38,538 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:42:38,538 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:42:38,538 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:25" (3/4) ... [2023-11-26 10:42:38,540 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-26 10:42:38,615 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:42:38,616 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:42:38,617 INFO L158 Benchmark]: Toolchain (without parser) took 13982.47ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 160.4MB in the beginning and 77.8MB in the end (delta: 82.6MB). Peak memory consumption was 127.6MB. Max. memory is 16.1GB. [2023-11-26 10:42:38,618 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 205.5MB. Free memory is still 180.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:42:38,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.39ms. Allocated memory is still 205.5MB. Free memory was 159.8MB in the beginning and 150.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 10:42:38,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.93ms. Allocated memory is still 205.5MB. Free memory was 150.2MB in the beginning and 149.3MB in the end (delta: 945.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:42:38,620 INFO L158 Benchmark]: Boogie Preprocessor took 27.96ms. Allocated memory is still 205.5MB. Free memory was 149.3MB in the beginning and 147.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:42:38,620 INFO L158 Benchmark]: RCFGBuilder took 254.71ms. Allocated memory is still 205.5MB. Free memory was 147.7MB in the beginning and 139.6MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 10:42:38,624 INFO L158 Benchmark]: BuchiAutomizer took 13323.10ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 139.3MB in the beginning and 82.0MB in the end (delta: 57.3MB). Peak memory consumption was 102.4MB. Max. memory is 16.1GB. [2023-11-26 10:42:38,625 INFO L158 Benchmark]: Witness Printer took 78.18ms. Allocated memory is still 247.5MB. Free memory was 82.0MB in the beginning and 77.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:42:38,627 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 205.5MB. Free memory is still 180.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.39ms. Allocated memory is still 205.5MB. Free memory was 159.8MB in the beginning and 150.2MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.93ms. Allocated memory is still 205.5MB. Free memory was 150.2MB in the beginning and 149.3MB in the end (delta: 945.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.96ms. Allocated memory is still 205.5MB. Free memory was 149.3MB in the beginning and 147.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 254.71ms. Allocated memory is still 205.5MB. Free memory was 147.7MB in the beginning and 139.6MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 13323.10ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 139.3MB in the beginning and 82.0MB in the end (delta: 57.3MB). Peak memory consumption was 102.4MB. Max. memory is 16.1GB. * Witness Printer took 78.18ms. Allocated memory is still 247.5MB. Free memory was 82.0MB in the beginning and 77.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 11 terminating modules (6 trivial, 3 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function i and consists of 3 locations. One deterministic module has affine ranking function ((-2 * i) + 99) and consists of 3 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function ((-2 * i) + 99) and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 52 locations. The remainder module has 106 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.2s and 8 iterations. TraceHistogramMax:52. Analysis of lassos took 11.5s. Construction of modules took 0.3s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 9 StatesRemovedByMinimization, 7 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, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 350 IncrementalHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 53 mSDtfsCounter, 350 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN2 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax203 hnf100 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = 0 VAL [i=0] [L9] COND TRUE i < 100 VAL [i=0] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=1] [L9] COND TRUE i < 100 VAL [i=1] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=2] [L9] COND TRUE i < 100 VAL [i=2] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=3] [L9] COND TRUE i < 100 VAL [i=3] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=4] [L9] COND TRUE i < 100 VAL [i=4] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=5] [L9] COND TRUE i < 100 VAL [i=5] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=6] [L9] COND TRUE i < 100 VAL [i=6] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=7] [L9] COND TRUE i < 100 VAL [i=7] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=8] [L9] COND TRUE i < 100 VAL [i=8] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=9] [L9] COND TRUE i < 100 VAL [i=9] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=10] [L9] COND TRUE i < 100 VAL [i=10] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=11] [L9] COND TRUE i < 100 VAL [i=11] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=12] [L9] COND TRUE i < 100 VAL [i=12] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=13] [L9] COND TRUE i < 100 VAL [i=13] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=14] [L9] COND TRUE i < 100 VAL [i=14] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=15] [L9] COND TRUE i < 100 VAL [i=15] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=16] [L9] COND TRUE i < 100 VAL [i=16] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=17] [L9] COND TRUE i < 100 VAL [i=17] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=18] [L9] COND TRUE i < 100 VAL [i=18] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=19] [L9] COND TRUE i < 100 VAL [i=19] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=20] [L9] COND TRUE i < 100 VAL [i=20] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=21] [L9] COND TRUE i < 100 VAL [i=21] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=22] [L9] COND TRUE i < 100 VAL [i=22] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=23] [L9] COND TRUE i < 100 VAL [i=23] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=24] [L9] COND TRUE i < 100 VAL [i=24] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=25] [L9] COND TRUE i < 100 VAL [i=25] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=26] [L9] COND TRUE i < 100 VAL [i=26] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=27] [L9] COND TRUE i < 100 VAL [i=27] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=28] [L9] COND TRUE i < 100 VAL [i=28] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=29] [L9] COND TRUE i < 100 VAL [i=29] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=30] [L9] COND TRUE i < 100 VAL [i=30] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=31] [L9] COND TRUE i < 100 VAL [i=31] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=32] [L9] COND TRUE i < 100 VAL [i=32] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=33] [L9] COND TRUE i < 100 VAL [i=33] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=34] [L9] COND TRUE i < 100 VAL [i=34] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=35] [L9] COND TRUE i < 100 VAL [i=35] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=36] [L9] COND TRUE i < 100 VAL [i=36] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=37] [L9] COND TRUE i < 100 VAL [i=37] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=38] [L9] COND TRUE i < 100 VAL [i=38] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=39] [L9] COND TRUE i < 100 VAL [i=39] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=40] [L9] COND TRUE i < 100 VAL [i=40] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=41] [L9] COND TRUE i < 100 VAL [i=41] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=42] [L9] COND TRUE i < 100 VAL [i=42] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=43] [L9] COND TRUE i < 100 VAL [i=43] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=44] [L9] COND TRUE i < 100 VAL [i=44] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=45] [L9] COND TRUE i < 100 VAL [i=45] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=46] [L9] COND TRUE i < 100 VAL [i=46] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=47] [L9] COND TRUE i < 100 VAL [i=47] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=48] [L9] COND TRUE i < 100 VAL [i=48] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=49] [L9] COND TRUE i < 100 VAL [i=49] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=50] [L9] COND TRUE i < 100 VAL [i=50] [L10] COND FALSE !(i < 50) [L11] i = i-1 VAL [i=49] [L9] COND TRUE i < 100 VAL [i=49] Loop: [L10] COND TRUE i < 50 [L10] i = i+1 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = i-1 [L9] COND TRUE i < 100 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 VAL [i=0] [L9] COND TRUE i < 100 VAL [i=0] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=1] [L9] COND TRUE i < 100 VAL [i=1] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=2] [L9] COND TRUE i < 100 VAL [i=2] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=3] [L9] COND TRUE i < 100 VAL [i=3] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=4] [L9] COND TRUE i < 100 VAL [i=4] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=5] [L9] COND TRUE i < 100 VAL [i=5] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=6] [L9] COND TRUE i < 100 VAL [i=6] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=7] [L9] COND TRUE i < 100 VAL [i=7] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=8] [L9] COND TRUE i < 100 VAL [i=8] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=9] [L9] COND TRUE i < 100 VAL [i=9] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=10] [L9] COND TRUE i < 100 VAL [i=10] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=11] [L9] COND TRUE i < 100 VAL [i=11] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=12] [L9] COND TRUE i < 100 VAL [i=12] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=13] [L9] COND TRUE i < 100 VAL [i=13] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=14] [L9] COND TRUE i < 100 VAL [i=14] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=15] [L9] COND TRUE i < 100 VAL [i=15] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=16] [L9] COND TRUE i < 100 VAL [i=16] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=17] [L9] COND TRUE i < 100 VAL [i=17] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=18] [L9] COND TRUE i < 100 VAL [i=18] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=19] [L9] COND TRUE i < 100 VAL [i=19] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=20] [L9] COND TRUE i < 100 VAL [i=20] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=21] [L9] COND TRUE i < 100 VAL [i=21] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=22] [L9] COND TRUE i < 100 VAL [i=22] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=23] [L9] COND TRUE i < 100 VAL [i=23] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=24] [L9] COND TRUE i < 100 VAL [i=24] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=25] [L9] COND TRUE i < 100 VAL [i=25] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=26] [L9] COND TRUE i < 100 VAL [i=26] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=27] [L9] COND TRUE i < 100 VAL [i=27] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=28] [L9] COND TRUE i < 100 VAL [i=28] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=29] [L9] COND TRUE i < 100 VAL [i=29] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=30] [L9] COND TRUE i < 100 VAL [i=30] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=31] [L9] COND TRUE i < 100 VAL [i=31] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=32] [L9] COND TRUE i < 100 VAL [i=32] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=33] [L9] COND TRUE i < 100 VAL [i=33] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=34] [L9] COND TRUE i < 100 VAL [i=34] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=35] [L9] COND TRUE i < 100 VAL [i=35] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=36] [L9] COND TRUE i < 100 VAL [i=36] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=37] [L9] COND TRUE i < 100 VAL [i=37] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=38] [L9] COND TRUE i < 100 VAL [i=38] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=39] [L9] COND TRUE i < 100 VAL [i=39] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=40] [L9] COND TRUE i < 100 VAL [i=40] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=41] [L9] COND TRUE i < 100 VAL [i=41] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=42] [L9] COND TRUE i < 100 VAL [i=42] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=43] [L9] COND TRUE i < 100 VAL [i=43] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=44] [L9] COND TRUE i < 100 VAL [i=44] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=45] [L9] COND TRUE i < 100 VAL [i=45] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=46] [L9] COND TRUE i < 100 VAL [i=46] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=47] [L9] COND TRUE i < 100 VAL [i=47] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=48] [L9] COND TRUE i < 100 VAL [i=48] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=49] [L9] COND TRUE i < 100 VAL [i=49] [L10] COND TRUE i < 50 [L10] i = i+1 VAL [i=50] [L9] COND TRUE i < 100 VAL [i=50] [L10] COND FALSE !(i < 50) [L11] i = i-1 VAL [i=49] [L9] COND TRUE i < 100 VAL [i=49] Loop: [L10] COND TRUE i < 50 [L10] i = i+1 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = i-1 [L9] COND TRUE i < 100 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-26 10:42:38,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:38,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:39,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-26 10:42:39,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-26 10:42:39,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:39,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbae29a9-8fa6-4c3f-aa79-a2893dcd1f5c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)