./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_13.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 eeea679d58a502ae5881094604c1f31424fa081cb4c3d3de58dd4530f33f3571 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:16:04,878 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:16:04,993 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 21:16:04,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:16:05,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:16:05,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:16:05,037 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:16:05,038 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:16:05,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:16:05,044 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:16:05,045 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:16:05,046 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 21:16:05,046 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 21:16:05,048 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 21:16:05,048 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 21:16:05,049 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 21:16:05,049 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 21:16:05,050 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:16:05,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 21:16:05,051 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:16:05,051 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:16:05,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 21:16:05,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 21:16:05,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 21:16:05,053 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:16:05,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:16:05,054 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 21:16:05,055 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:16:05,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:16:05,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:16:05,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:16:05,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:16:05,058 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 21:16:05,058 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_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eeea679d58a502ae5881094604c1f31424fa081cb4c3d3de58dd4530f33f3571 [2023-11-06 21:16:05,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:16:05,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:16:05,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:16:05,401 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:16:05,402 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:16:05,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-restricted-15/NO_13.c [2023-11-06 21:16:08,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:16:08,615 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:16:08,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/sv-benchmarks/c/termination-restricted-15/NO_13.c [2023-11-06 21:16:08,622 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/data/c27a21450/3967981d3fc7454b907b61cd4027766f/FLAGa3316c9bf [2023-11-06 21:16:08,637 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/data/c27a21450/3967981d3fc7454b907b61cd4027766f [2023-11-06 21:16:08,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:16:08,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:16:08,643 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:16:08,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:16:08,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:16:08,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f6f3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08, skipping insertion in model container [2023-11-06 21:16:08,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,671 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:16:08,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:16:08,846 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:16:08,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:16:08,870 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:16:08,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08 WrapperNode [2023-11-06 21:16:08,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:16:08,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:16:08,871 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:16:08,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:16:08,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,897 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2023-11-06 21:16:08,898 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:16:08,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:16:08,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:16:08,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:16:08,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,917 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:16:08,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:16:08,920 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:16:08,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:16:08,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08" (1/1) ... [2023-11-06 21:16:08,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:08,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:08,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:08,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 21:16:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:16:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:16:09,090 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:16:09,093 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:16:09,151 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:16:09,158 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:16:09,158 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 21:16:09,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:16:09 BoogieIcfgContainer [2023-11-06 21:16:09,161 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:16:09,162 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 21:16:09,162 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 21:16:09,166 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 21:16:09,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:16:09,167 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 09:16:08" (1/3) ... [2023-11-06 21:16:09,168 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14b4c090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 09:16:09, skipping insertion in model container [2023-11-06 21:16:09,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:16:09,169 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:08" (2/3) ... [2023-11-06 21:16:09,169 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14b4c090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 09:16:09, skipping insertion in model container [2023-11-06 21:16:09,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:16:09,170 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:16:09" (3/3) ... [2023-11-06 21:16:09,171 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_13.c [2023-11-06 21:16:09,232 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 21:16:09,233 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 21:16:09,233 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 21:16:09,233 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 21:16:09,233 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 21:16:09,233 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 21:16:09,234 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 21:16:09,234 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 21:16:09,238 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) [2023-11-06 21:16:09,256 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 21:16:09,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:16:09,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:16:09,262 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 21:16:09,262 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 21:16:09,262 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 21:16:09,263 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) [2023-11-06 21:16:09,264 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 21:16:09,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:16:09,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:16:09,266 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 21:16:09,266 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 21:16:09,275 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 2#L12-2true [2023-11-06 21:16:09,277 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~i~0#1 < main_~j~0#1); 8#L12true assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2#L12-2true [2023-11-06 21:16:09,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:09,290 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 21:16:09,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:09,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904914975] [2023-11-06 21:16:09,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:09,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:09,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:09,404 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:09,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:09,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-06 21:16:09,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:09,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847606434] [2023-11-06 21:16:09,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:09,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:09,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:09,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:09,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:09,431 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-06 21:16:09,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:09,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867824125] [2023-11-06 21:16:09,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:09,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:09,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:16:09,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867824125] [2023-11-06 21:16:09,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867824125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:16:09,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:16:09,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:16:09,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633464273] [2023-11-06 21:16:09,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:16:09,595 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:16:09,596 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:16:09,596 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:16:09,597 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:16:09,597 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 21:16:09,597 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:09,597 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:16:09,597 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:16:09,598 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration1_Loop [2023-11-06 21:16:09,598 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:16:09,598 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:16:09,642 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:09,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:09,660 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:09,794 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:16:09,795 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 21:16:09,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:09,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:09,804 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:09,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 21:16:09,814 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:16:09,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:09,838 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 21:16:09,839 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: [] [2023-11-06 21:16:09,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:09,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:09,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:09,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:09,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 21:16:09,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:16:09,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:09,876 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 21:16:09,877 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: [] [2023-11-06 21:16:09,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-06 21:16:09,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:09,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:09,905 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:09,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 21:16:09,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:16:09,918 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:09,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:09,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:09,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:09,951 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:09,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 21:16:09,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 21:16:09,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:09,991 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 21:16:09,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:09,995 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:16:09,995 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:16:09,995 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:16:09,996 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:16:09,996 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 21:16:09,996 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:09,996 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:16:09,996 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:16:09,996 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration1_Loop [2023-11-06 21:16:09,996 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:16:09,997 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:16:09,999 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:10,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:10,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:10,087 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:16:10,092 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 21:16:10,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:10,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:10,095 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:10,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 21:16:10,104 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 [2023-11-06 21:16:10,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:16:10,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:16:10,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:16:10,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:16:10,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:16:10,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:16:10,145 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:16:10,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:10,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:10,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:10,156 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:10,173 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 [2023-11-06 21:16:10,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:16:10,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:16:10,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:16:10,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:16:10,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:16:10,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:16:10,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 21:16:10,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:16:10,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:10,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:10,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:10,215 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:10,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 21:16:10,218 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 [2023-11-06 21:16:10,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:16:10,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:16:10,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:16:10,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:16:10,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:16:10,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:16:10,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:16:10,252 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 21:16:10,256 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 21:16:10,257 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 21:16:10,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:10,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:10,293 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:10,305 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 21:16:10,305 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 21:16:10,306 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 21:16:10,306 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2023-11-06 21:16:10,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 21:16:10,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:10,318 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 21:16:10,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:10,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:16:10,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:10,384 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:16:10,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:10,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:10,429 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 [2023-11-06 21:16:10,431 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) [2023-11-06 21:16:10,488 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. [2023-11-06 21:16:10,491 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 [2023-11-06 21:16:10,503 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) [2023-11-06 21:16:10,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-06 21:16:10,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-06 21:16:10,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:10,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-06 21:16:10,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:10,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-06 21:16:10,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:10,507 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2023-11-06 21:16:10,512 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 21:16:10,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2023-11-06 21:16:10,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-06 21:16:10,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-06 21:16:10,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-06 21:16:10,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:16:10,519 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-06 21:16:10,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-06 21:16:10,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-06 21:16:10,547 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) [2023-11-06 21:16:10,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-06 21:16:10,549 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-06 21:16:10,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:16:10,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:16:10,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:16:10,552 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) [2023-11-06 21:16:10,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:16:10,562 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2023-11-06 21:16:10,562 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2023-11-06 21:16:10,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 21:16:10,563 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2023-11-06 21:16:10,563 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-06 21:16:10,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-06 21:16:10,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2023-11-06 21:16:10,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:16:10,564 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-06 21:16:10,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2023-11-06 21:16:10,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-11-06 21:16:10,565 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) [2023-11-06 21:16:10,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2023-11-06 21:16:10,566 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-06 21:16:10,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:16:10,567 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-06 21:16:10,567 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 21:16:10,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2023-11-06 21:16:10,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 21:16:10,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:16:10,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:16:10,569 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-06 21:16:10,569 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 21:16:10,569 INFO L748 eck$LassoCheckResult]: Stem: 81#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 82#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 83#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 84#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 79#L12-2 [2023-11-06 21:16:10,569 INFO L750 eck$LassoCheckResult]: Loop: 79#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 80#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 79#L12-2 [2023-11-06 21:16:10,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:10,570 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-06 21:16:10,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:10,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212288896] [2023-11-06 21:16:10,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:10,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:10,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:10,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:10,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:10,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-11-06 21:16:10,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:10,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359209159] [2023-11-06 21:16:10,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:10,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:10,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:10,597 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:10,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:10,598 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-11-06 21:16:10,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:10,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037825167] [2023-11-06 21:16:10,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:10,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:10,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:10,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:16:10,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037825167] [2023-11-06 21:16:10,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037825167] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:16:10,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645509016] [2023-11-06 21:16:10,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:10,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:16:10,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:10,650 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:16:10,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 21:16:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:10,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:16:10,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:10,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:10,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:16:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:10,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645509016] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:16:10,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:16:10,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-06 21:16:10,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837149322] [2023-11-06 21:16:10,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:16:10,821 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:16:10,821 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:16:10,821 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:16:10,821 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:16:10,821 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 21:16:10,822 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:10,822 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:16:10,822 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:16:10,822 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration2_Loop [2023-11-06 21:16:10,822 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:16:10,822 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:16:10,824 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:10,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:10,831 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:10,891 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:16:10,891 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 21:16:10,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:10,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:10,895 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:10,898 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:16:10,898 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:10,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 21:16:10,928 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 21:16:10,929 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: [] [2023-11-06 21:16:10,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:10,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:10,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:10,939 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:10,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:16:10,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:10,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 21:16:10,979 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 21:16:10,979 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 21:16:10,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:10,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:10,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:10,988 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:10,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:16:10,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:11,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 21:16:11,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-06 21:16:11,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:11,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:11,031 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:11,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 21:16:11,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 21:16:11,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:11,069 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 21:16:11,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:11,074 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:16:11,074 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:16:11,074 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:16:11,074 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:16:11,074 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 21:16:11,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:11,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:16:11,074 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:16:11,074 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration2_Loop [2023-11-06 21:16:11,075 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:16:11,075 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:16:11,077 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:11,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:11,088 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:11,151 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:16:11,151 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 21:16:11,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:11,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:11,157 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:11,166 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 [2023-11-06 21:16:11,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:16:11,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:16:11,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:16:11,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:16:11,184 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:16:11,184 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:16:11,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 21:16:11,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:16:11,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:11,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:11,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:11,214 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:11,226 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 [2023-11-06 21:16:11,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 21:16:11,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:16:11,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:16:11,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:16:11,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:16:11,246 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:16:11,247 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:16:11,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:16:11,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:11,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:11,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:11,269 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:11,279 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 [2023-11-06 21:16:11,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:16:11,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:16:11,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:16:11,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:16:11,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:16:11,295 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:16:11,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:16:11,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 21:16:11,312 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 21:16:11,322 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 21:16:11,322 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 21:16:11,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:11,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:11,327 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:11,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 21:16:11,332 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 21:16:11,333 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 21:16:11,333 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 21:16:11,333 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2023-11-06 21:16:11,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:11,341 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 21:16:11,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:11,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:16:11,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:11,391 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:16:11,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:11,397 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 [2023-11-06 21:16:11,398 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) [2023-11-06 21:16:11,412 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. [2023-11-06 21:16:11,412 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 [2023-11-06 21:16:11,414 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) [2023-11-06 21:16:11,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-06 21:16:11,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-06 21:16:11,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:11,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-06 21:16:11,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:11,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-06 21:16:11,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:11,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2023-11-06 21:16:11,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 21:16:11,421 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2023-11-06 21:16:11,421 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-06 21:16:11,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 21:16:11,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2023-11-06 21:16:11,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:16:11,421 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-06 21:16:11,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2023-11-06 21:16:11,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-06 21:16:11,423 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) [2023-11-06 21:16:11,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-06 21:16:11,424 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-06 21:16:11,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:16:11,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:16:11,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:16:11,426 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) [2023-11-06 21:16:11,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:16:11,473 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2023-11-06 21:16:11,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2023-11-06 21:16:11,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 21:16:11,477 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 13 transitions. [2023-11-06 21:16:11,477 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-06 21:16:11,478 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-06 21:16:11,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2023-11-06 21:16:11,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:16:11,479 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-06 21:16:11,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2023-11-06 21:16:11,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-06 21:16:11,482 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) [2023-11-06 21:16:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-11-06 21:16:11,482 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-06 21:16:11,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:16:11,485 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-06 21:16:11,485 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 21:16:11,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2023-11-06 21:16:11,488 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 21:16:11,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:16:11,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:16:11,489 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1] [2023-11-06 21:16:11,489 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 21:16:11,490 INFO L748 eck$LassoCheckResult]: Stem: 191#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 192#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 193#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 194#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 189#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 190#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 200#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 199#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 198#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 197#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 196#L12-2 [2023-11-06 21:16:11,490 INFO L750 eck$LassoCheckResult]: Loop: 196#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 195#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 196#L12-2 [2023-11-06 21:16:11,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:11,490 INFO L85 PathProgramCache]: Analyzing trace with hash 742492623, now seen corresponding path program 2 times [2023-11-06 21:16:11,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:11,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50277327] [2023-11-06 21:16:11,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:11,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:11,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:11,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:11,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-11-06 21:16:11,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:11,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968092083] [2023-11-06 21:16:11,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:11,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:11,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:11,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:11,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:11,572 INFO L85 PathProgramCache]: Analyzing trace with hash 570839924, now seen corresponding path program 2 times [2023-11-06 21:16:11,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:11,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754038460] [2023-11-06 21:16:11,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:11,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:11,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-06 21:16:11,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:11,768 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:11,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:16:11,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754038460] [2023-11-06 21:16:11,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754038460] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:16:11,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045167238] [2023-11-06 21:16:11,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:16:11,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:16:11,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:11,777 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:16:11,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-06 21:16:11,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 21:16:11,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:16:11,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:16:11,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:11,866 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:11,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:16:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:11,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045167238] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:16:11,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:16:11,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-11-06 21:16:11,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896291899] [2023-11-06 21:16:11,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:16:12,004 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:16:12,004 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:16:12,004 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:16:12,004 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:16:12,004 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 21:16:12,005 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:12,005 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:16:12,005 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:16:12,006 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration3_Loop [2023-11-06 21:16:12,006 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:16:12,006 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:16:12,010 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:12,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:12,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:12,080 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:16:12,080 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 21:16:12,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:12,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:12,085 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:12,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:16:12,103 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:12,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 21:16:12,123 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 21:16:12,123 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 21:16:12,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-06 21:16:12,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:12,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:12,128 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:12,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 21:16:12,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:16:12,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:12,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:12,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:12,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:12,155 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:12,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 21:16:12,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 21:16:12,161 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:12,208 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 21:16:12,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:12,213 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:16:12,213 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:16:12,213 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:16:12,213 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:16:12,213 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 21:16:12,213 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:12,214 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:16:12,214 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:16:12,214 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration3_Loop [2023-11-06 21:16:12,214 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:16:12,214 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:16:12,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:12,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:12,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:12,285 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:16:12,285 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 21:16:12,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:12,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:12,286 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:12,291 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 [2023-11-06 21:16:12,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:16:12,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:16:12,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:16:12,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:16:12,309 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:16:12,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:16:12,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-06 21:16:12,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:16:12,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:12,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:12,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:12,332 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:12,341 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 [2023-11-06 21:16:12,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:16:12,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:16:12,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:16:12,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:16:12,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:16:12,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:16:12,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:16:12,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-06 21:16:12,376 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 21:16:12,380 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 21:16:12,380 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 21:16:12,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:12,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:12,382 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:12,386 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 21:16:12,386 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 21:16:12,386 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 21:16:12,386 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2023-11-06 21:16:12,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-06 21:16:12,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:12,395 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 21:16:12,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:12,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:16:12,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:12,455 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:16:12,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:12,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:12,461 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 [2023-11-06 21:16:12,461 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) [2023-11-06 21:16:12,476 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. [2023-11-06 21:16:12,477 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 [2023-11-06 21:16:12,480 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) [2023-11-06 21:16:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-11-06 21:16:12,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-06 21:16:12,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:12,481 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 21:16:12,497 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:12,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:16:12,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:12,545 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:16:12,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:12,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:12,552 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 [2023-11-06 21:16:12,552 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) [2023-11-06 21:16:12,561 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. [2023-11-06 21:16:12,561 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 [2023-11-06 21:16:12,563 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) [2023-11-06 21:16:12,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-11-06 21:16:12,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-06 21:16:12,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:12,564 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 21:16:12,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:12,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:16:12,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:12,610 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:16:12,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:12,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:12,619 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 [2023-11-06 21:16:12,619 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) [2023-11-06 21:16:12,631 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. [2023-11-06 21:16:12,631 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 [2023-11-06 21:16:12,634 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) [2023-11-06 21:16:12,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-06 21:16:12,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-06 21:16:12,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:12,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 12 letters. Loop has 2 letters. [2023-11-06 21:16:12,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:12,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-06 21:16:12,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:12,637 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2023-11-06 21:16:12,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 21:16:12,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 16 transitions. [2023-11-06 21:16:12,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 21:16:12,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-06 21:16:12,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2023-11-06 21:16:12,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:16:12,644 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-06 21:16:12,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2023-11-06 21:16:12,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-06 21:16:12,646 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) [2023-11-06 21:16:12,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2023-11-06 21:16:12,646 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2023-11-06 21:16:12,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:16:12,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 21:16:12,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:16:12,648 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) [2023-11-06 21:16:12,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:16:12,703 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2023-11-06 21:16:12,704 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 34 transitions. [2023-11-06 21:16:12,705 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 21:16:12,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 28 transitions. [2023-11-06 21:16:12,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-11-06 21:16:12,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2023-11-06 21:16:12,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 28 transitions. [2023-11-06 21:16:12,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:16:12,707 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2023-11-06 21:16:12,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 28 transitions. [2023-11-06 21:16:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2023-11-06 21:16:12,708 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) [2023-11-06 21:16:12,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-11-06 21:16:12,709 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-11-06 21:16:12,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 21:16:12,710 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-11-06 21:16:12,710 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 21:16:12,710 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 27 transitions. [2023-11-06 21:16:12,711 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 21:16:12,711 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:16:12,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:16:12,712 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 9, 1, 1] [2023-11-06 21:16:12,712 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 21:16:12,713 INFO L748 eck$LassoCheckResult]: Stem: 504#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 505#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 506#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 507#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 499#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 500#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 523#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 522#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 521#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 520#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 519#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 518#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 517#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 516#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 515#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 514#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 513#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 512#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 511#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 510#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 509#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 503#L12 [2023-11-06 21:16:12,713 INFO L750 eck$LassoCheckResult]: Loop: 503#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 508#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 503#L12 [2023-11-06 21:16:12,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:12,713 INFO L85 PathProgramCache]: Analyzing trace with hash -926509747, now seen corresponding path program 3 times [2023-11-06 21:16:12,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:12,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524826408] [2023-11-06 21:16:12,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:12,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:12,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:12,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:12,750 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:12,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2023-11-06 21:16:12,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:12,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920532527] [2023-11-06 21:16:12,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:12,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:12,754 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:12,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:12,757 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:12,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1317636150, now seen corresponding path program 4 times [2023-11-06 21:16:12,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:12,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899751539] [2023-11-06 21:16:12,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:12,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:12,774 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:12,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:12,814 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:16:12,814 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:16:12,814 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:16:12,814 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:16:12,815 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 21:16:12,815 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:12,815 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:16:12,815 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:16:12,815 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration4_Loop [2023-11-06 21:16:12,815 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:16:12,815 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:16:12,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:12,826 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:12,829 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:12,879 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:16:12,879 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 21:16:12,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:12,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:12,885 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:12,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:16:12,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:12,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-06 21:16:12,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:12,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:12,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:12,921 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:12,925 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 21:16:12,925 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:12,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-06 21:16:12,964 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 21:16:12,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:12,973 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:16:12,973 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:16:12,973 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:16:12,973 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:16:12,973 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 21:16:12,973 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:12,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:16:12,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:16:12,973 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration4_Loop [2023-11-06 21:16:12,973 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:16:12,974 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:16:12,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:12,986 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:12,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:13,040 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:16:13,040 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 21:16:13,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:13,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:13,042 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:13,046 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 [2023-11-06 21:16:13,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:16:13,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:16:13,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:16:13,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:16:13,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:16:13,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:16:13,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:16:13,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-06 21:16:13,080 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 21:16:13,093 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-06 21:16:13,093 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 21:16:13,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:13,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:13,097 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:13,098 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 21:16:13,098 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 21:16:13,098 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 21:16:13,098 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-06 21:16:13,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-06 21:16:13,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:13,103 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 21:16:13,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:13,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:16:13,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:13,192 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:16:13,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:13,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:13,212 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 [2023-11-06 21:16:13,212 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) [2023-11-06 21:16:13,231 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. [2023-11-06 21:16:13,232 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 [2023-11-06 21:16:13,233 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) [2023-11-06 21:16:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-06 21:16:13,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 2 letters. [2023-11-06 21:16:13,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:13,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 23 letters. Loop has 2 letters. [2023-11-06 21:16:13,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:13,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 4 letters. [2023-11-06 21:16:13,237 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:13,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 42 transitions. [2023-11-06 21:16:13,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 21:16:13,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 28 states and 31 transitions. [2023-11-06 21:16:13,241 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-06 21:16:13,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-06 21:16:13,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 31 transitions. [2023-11-06 21:16:13,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:16:13,241 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 31 transitions. [2023-11-06 21:16:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 31 transitions. [2023-11-06 21:16:13,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2023-11-06 21:16:13,245 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) [2023-11-06 21:16:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-11-06 21:16:13,246 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-11-06 21:16:13,246 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-11-06 21:16:13,246 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 21:16:13,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2023-11-06 21:16:13,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 21:16:13,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:16:13,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:16:13,257 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [12, 10, 1, 1, 1] [2023-11-06 21:16:13,257 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 21:16:13,257 INFO L748 eck$LassoCheckResult]: Stem: 656#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 657#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 658#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 659#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 660#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 661#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 654#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 655#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 677#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 676#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 675#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 674#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 673#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 672#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 671#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 670#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 669#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 668#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 667#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 666#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 665#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 664#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 663#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 652#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 662#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 653#L12 [2023-11-06 21:16:13,257 INFO L750 eck$LassoCheckResult]: Loop: 653#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 651#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 653#L12 [2023-11-06 21:16:13,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:13,258 INFO L85 PathProgramCache]: Analyzing trace with hash 767012677, now seen corresponding path program 3 times [2023-11-06 21:16:13,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:13,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574998306] [2023-11-06 21:16:13,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:13,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:13,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:13,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:13,611 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:13,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:16:13,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574998306] [2023-11-06 21:16:13,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574998306] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:16:13,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674460218] [2023-11-06 21:16:13,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 21:16:13,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:16:13,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:13,613 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:16:13,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-06 21:16:13,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2023-11-06 21:16:13,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:16:13,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 21:16:13,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:13,729 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:13,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:16:13,994 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:13,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674460218] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:16:13,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:16:13,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2023-11-06 21:16:13,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905206413] [2023-11-06 21:16:13,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:16:13,995 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 21:16:13,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:13,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2023-11-06 21:16:13,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:13,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042476018] [2023-11-06 21:16:13,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:13,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:14,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:14,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:14,035 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:16:14,036 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:16:14,036 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:16:14,036 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:16:14,036 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 21:16:14,036 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:14,036 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:16:14,037 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:16:14,037 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration5_Loop [2023-11-06 21:16:14,037 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:16:14,037 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:16:14,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:14,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:14,051 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:14,094 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:16:14,095 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 21:16:14,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:14,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:14,096 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:14,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 21:16:14,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:14,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-06 21:16:14,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:14,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:14,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:14,138 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:14,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 21:16:14,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 21:16:14,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-06 21:16:14,185 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 21:16:14,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:14,192 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:16:14,192 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:16:14,192 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:16:14,192 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:16:14,192 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 21:16:14,192 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:14,192 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:16:14,192 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:16:14,193 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration5_Loop [2023-11-06 21:16:14,193 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:16:14,193 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:16:14,194 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:14,203 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:14,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:16:14,252 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:16:14,253 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 21:16:14,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:14,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:14,254 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:14,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-06 21:16:14,264 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 [2023-11-06 21:16:14,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:16:14,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:16:14,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:16:14,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:16:14,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:16:14,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:16:14,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:16:14,296 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 21:16:14,299 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-06 21:16:14,299 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 21:16:14,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:16:14,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:14,300 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:14,304 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 21:16:14,304 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 21:16:14,304 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 21:16:14,304 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-06 21:16:14,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-06 21:16:14,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:14,313 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 21:16:14,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:14,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:16:14,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:14,392 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:16:14,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:14,412 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 [2023-11-06 21:16:14,412 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) [2023-11-06 21:16:14,425 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. [2023-11-06 21:16:14,425 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 [2023-11-06 21:16:14,426 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) [2023-11-06 21:16:14,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-06 21:16:14,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 25 letters. Loop has 2 letters. [2023-11-06 21:16:14,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:14,429 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 21:16:14,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:14,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:16:14,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:14,492 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:16:14,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:14,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:14,513 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 [2023-11-06 21:16:14,513 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) [2023-11-06 21:16:14,529 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. [2023-11-06 21:16:14,530 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 [2023-11-06 21:16:14,530 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) [2023-11-06 21:16:14,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-11-06 21:16:14,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 25 letters. Loop has 2 letters. [2023-11-06 21:16:14,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:14,532 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 21:16:14,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:14,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:16:14,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:14,599 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:16:14,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:14,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:14,616 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 [2023-11-06 21:16:14,616 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) [2023-11-06 21:16:14,636 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. [2023-11-06 21:16:14,636 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 [2023-11-06 21:16:14,637 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) [2023-11-06 21:16:14,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-06 21:16:14,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 2 letters. [2023-11-06 21:16:14,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:14,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 27 letters. Loop has 2 letters. [2023-11-06 21:16:14,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:14,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 4 letters. [2023-11-06 21:16:14,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:14,642 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 45 transitions. [2023-11-06 21:16:14,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-06 21:16:14,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 29 states and 32 transitions. [2023-11-06 21:16:14,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-06 21:16:14,652 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-06 21:16:14,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 32 transitions. [2023-11-06 21:16:14,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:16:14,653 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-06 21:16:14,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 32 transitions. [2023-11-06 21:16:14,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2023-11-06 21:16:14,657 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) [2023-11-06 21:16:14,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2023-11-06 21:16:14,658 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2023-11-06 21:16:14,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:16:14,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-06 21:16:14,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-06 21:16:14,661 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) [2023-11-06 21:16:14,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:16:14,747 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2023-11-06 21:16:14,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 65 transitions. [2023-11-06 21:16:14,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 21:16:14,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 51 states and 53 transitions. [2023-11-06 21:16:14,753 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-06 21:16:14,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-06 21:16:14,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 53 transitions. [2023-11-06 21:16:14,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:16:14,753 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 53 transitions. [2023-11-06 21:16:14,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 53 transitions. [2023-11-06 21:16:14,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2023-11-06 21:16:14,761 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) [2023-11-06 21:16:14,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2023-11-06 21:16:14,764 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 52 transitions. [2023-11-06 21:16:14,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 21:16:14,765 INFO L428 stractBuchiCegarLoop]: Abstraction has 50 states and 52 transitions. [2023-11-06 21:16:14,765 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 21:16:14,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 52 transitions. [2023-11-06 21:16:14,766 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 21:16:14,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:16:14,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:16:14,770 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [24, 22, 1, 1, 1] [2023-11-06 21:16:14,770 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-06 21:16:14,770 INFO L748 eck$LassoCheckResult]: Stem: 1324#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1325#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 1320#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1321#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1326#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1327#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1322#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1323#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1369#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1368#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1367#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1366#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1365#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1364#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1363#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1362#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1361#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1360#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1359#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1358#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1357#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1356#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1355#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1354#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1353#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1352#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1351#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1350#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1349#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1348#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1347#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1346#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1345#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1344#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1343#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1342#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1341#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1340#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1339#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1338#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1337#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1336#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1335#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1334#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1333#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1332#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1331#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1329#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1328#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1330#L12 [2023-11-06 21:16:14,770 INFO L750 eck$LassoCheckResult]: Loop: 1330#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1331#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1329#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1328#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1330#L12 [2023-11-06 21:16:14,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:14,771 INFO L85 PathProgramCache]: Analyzing trace with hash -694298463, now seen corresponding path program 4 times [2023-11-06 21:16:14,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:14,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496921308] [2023-11-06 21:16:14,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:14,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:14,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:15,368 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:15,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:16:15,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496921308] [2023-11-06 21:16:15,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496921308] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:16:15,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978599951] [2023-11-06 21:16:15,369 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 21:16:15,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:16:15,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:15,371 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:16:15,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-06 21:16:15,438 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 21:16:15,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:16:15,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-06 21:16:15,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:15,546 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:15,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:16:16,438 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:16,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978599951] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:16:16,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:16:16,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2023-11-06 21:16:16,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024093249] [2023-11-06 21:16:16,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:16:16,440 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 21:16:16,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:16,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 1 times [2023-11-06 21:16:16,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:16,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912183535] [2023-11-06 21:16:16,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:16,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:16,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:16,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:16,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:16:16,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-06 21:16:16,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-06 21:16:16,506 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) [2023-11-06 21:16:16,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:16:16,712 INFO L93 Difference]: Finished difference Result 123 states and 125 transitions. [2023-11-06 21:16:16,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 125 transitions. [2023-11-06 21:16:16,717 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 21:16:16,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 99 states and 101 transitions. [2023-11-06 21:16:16,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-06 21:16:16,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-06 21:16:16,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 101 transitions. [2023-11-06 21:16:16,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:16:16,722 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 101 transitions. [2023-11-06 21:16:16,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 101 transitions. [2023-11-06 21:16:16,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2023-11-06 21:16:16,739 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) [2023-11-06 21:16:16,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2023-11-06 21:16:16,742 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 100 transitions. [2023-11-06 21:16:16,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-06 21:16:16,743 INFO L428 stractBuchiCegarLoop]: Abstraction has 98 states and 100 transitions. [2023-11-06 21:16:16,744 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-06 21:16:16,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 100 transitions. [2023-11-06 21:16:16,745 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 21:16:16,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:16:16,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:16:16,750 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [48, 46, 1, 1, 1] [2023-11-06 21:16:16,750 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-06 21:16:16,750 INFO L748 eck$LassoCheckResult]: Stem: 1836#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1837#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 1832#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1833#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1838#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1839#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1834#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1835#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1929#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1928#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1927#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1926#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1925#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1924#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1923#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1922#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1921#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1920#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1919#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1918#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1917#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1916#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1915#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1914#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1913#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1912#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1911#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1910#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1909#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1908#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1907#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1906#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1905#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1904#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1903#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1902#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1901#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1900#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1899#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1898#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1897#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1896#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1895#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1894#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1893#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1892#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1891#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1890#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1889#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1888#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1887#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1886#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1885#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1884#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1883#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1882#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1881#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1880#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1879#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1878#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1877#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1876#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1875#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1874#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1873#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1872#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1871#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1870#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1869#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1868#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1867#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1866#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1865#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1864#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1863#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1862#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1861#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1860#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1859#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1858#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1857#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1856#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1855#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1854#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1853#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1852#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1851#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1850#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1849#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1848#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1847#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1846#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1845#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1844#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1843#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1841#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1840#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1842#L12 [2023-11-06 21:16:16,752 INFO L750 eck$LassoCheckResult]: Loop: 1842#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1843#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1841#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1840#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1842#L12 [2023-11-06 21:16:16,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:16,753 INFO L85 PathProgramCache]: Analyzing trace with hash -818401447, now seen corresponding path program 5 times [2023-11-06 21:16:16,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:16,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691661342] [2023-11-06 21:16:16,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:16,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:18,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:16:18,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691661342] [2023-11-06 21:16:18,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691661342] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:16:18,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876426439] [2023-11-06 21:16:18,881 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 21:16:18,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:16:18,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:18,885 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:16:18,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-06 21:16:19,012 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2023-11-06 21:16:19,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:16:19,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-06 21:16:19,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:19,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:19,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:16:20,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:20,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876426439] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:16:20,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:16:20,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 51 [2023-11-06 21:16:20,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18286893] [2023-11-06 21:16:20,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:16:20,649 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 21:16:20,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:20,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2023-11-06 21:16:20,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:20,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139960872] [2023-11-06 21:16:20,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:20,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:20,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:20,656 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:20,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:16:20,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-11-06 21:16:20,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2023-11-06 21:16:20,711 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. cyclomatic complexity: 3 Second operand has 51 states, 51 states have (on average 2.019607843137255) internal successors, (103), 51 states have internal predecessors, (103), 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) [2023-11-06 21:16:20,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:16:20,930 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2023-11-06 21:16:20,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 110 transitions. [2023-11-06 21:16:20,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 21:16:20,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 105 states and 107 transitions. [2023-11-06 21:16:20,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-06 21:16:20,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-06 21:16:20,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 107 transitions. [2023-11-06 21:16:20,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 21:16:20,934 INFO L218 hiAutomatonCegarLoop]: Abstraction has 105 states and 107 transitions. [2023-11-06 21:16:20,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 107 transitions. [2023-11-06 21:16:20,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2023-11-06 21:16:20,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.0192307692307692) internal successors, (106), 103 states have internal predecessors, (106), 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) [2023-11-06 21:16:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 106 transitions. [2023-11-06 21:16:20,951 INFO L240 hiAutomatonCegarLoop]: Abstraction has 104 states and 106 transitions. [2023-11-06 21:16:20,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-06 21:16:20,952 INFO L428 stractBuchiCegarLoop]: Abstraction has 104 states and 106 transitions. [2023-11-06 21:16:20,952 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-06 21:16:20,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 106 transitions. [2023-11-06 21:16:20,953 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 21:16:20,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:16:20,953 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:16:20,959 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [51, 49, 1, 1, 1] [2023-11-06 21:16:20,959 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-06 21:16:20,962 INFO L748 eck$LassoCheckResult]: Stem: 2672#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2673#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 2668#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2669#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2674#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2675#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2670#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2671#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2771#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2770#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2769#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2768#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2767#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2766#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2765#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2764#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2763#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2762#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2761#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2760#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2759#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2758#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2757#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2756#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2755#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2754#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2753#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2752#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2751#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2750#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2749#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2748#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2747#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2746#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2745#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2744#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2743#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2742#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2741#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2740#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2739#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2738#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2737#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2736#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2735#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2734#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2733#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2732#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2731#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2730#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2729#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2728#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2727#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2726#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2725#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2724#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2723#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2722#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2721#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2720#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2719#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2718#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2717#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2716#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2715#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2714#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2713#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2712#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2711#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2710#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2709#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2708#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2707#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2706#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2705#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2704#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2703#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2702#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2701#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2700#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2699#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2698#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2697#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2696#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2695#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2694#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2693#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2692#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2691#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2690#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2689#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2688#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2687#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2686#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2685#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2684#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2683#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2682#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2681#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2680#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2679#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2677#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2676#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2678#L12 [2023-11-06 21:16:20,962 INFO L750 eck$LassoCheckResult]: Loop: 2678#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2679#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2677#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2676#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2678#L12 [2023-11-06 21:16:20,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:20,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1994822288, now seen corresponding path program 6 times [2023-11-06 21:16:20,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:20,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420023213] [2023-11-06 21:16:20,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:20,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:21,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:21,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:21,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:21,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 3 times [2023-11-06 21:16:21,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:21,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176226568] [2023-11-06 21:16:21,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:21,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:21,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:21,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:21,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:21,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1522445560, now seen corresponding path program 7 times [2023-11-06 21:16:21,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:16:21,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45902560] [2023-11-06 21:16:21,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:16:21,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:16:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:21,156 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:21,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:16:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:26,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:16:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:16:26,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 09:16:26 BoogieIcfgContainer [2023-11-06 21:16:26,495 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 21:16:26,496 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:16:26,496 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:16:26,497 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:16:26,497 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:16:09" (3/4) ... [2023-11-06 21:16:26,499 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 21:16:26,561 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:16:26,561 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:16:26,562 INFO L158 Benchmark]: Toolchain (without parser) took 17920.31ms. Allocated memory was 132.1MB in the beginning and 281.0MB in the end (delta: 148.9MB). Free memory was 91.1MB in the beginning and 162.2MB in the end (delta: -71.0MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. [2023-11-06 21:16:26,562 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:16:26,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.56ms. Allocated memory is still 132.1MB. Free memory was 91.1MB in the beginning and 81.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 21:16:26,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.61ms. Allocated memory is still 132.1MB. Free memory was 81.5MB in the beginning and 80.6MB in the end (delta: 891.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:16:26,563 INFO L158 Benchmark]: Boogie Preprocessor took 20.21ms. Allocated memory is still 132.1MB. Free memory was 80.6MB in the beginning and 79.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:16:26,563 INFO L158 Benchmark]: RCFGBuilder took 241.45ms. Allocated memory is still 132.1MB. Free memory was 79.4MB in the beginning and 71.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 21:16:26,564 INFO L158 Benchmark]: BuchiAutomizer took 17333.74ms. Allocated memory was 132.1MB in the beginning and 281.0MB in the end (delta: 148.9MB). Free memory was 71.0MB in the beginning and 165.3MB in the end (delta: -94.3MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2023-11-06 21:16:26,564 INFO L158 Benchmark]: Witness Printer took 64.92ms. Allocated memory is still 281.0MB. Free memory was 165.3MB in the beginning and 162.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:16:26,566 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.56ms. Allocated memory is still 132.1MB. Free memory was 91.1MB in the beginning and 81.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.61ms. Allocated memory is still 132.1MB. Free memory was 81.5MB in the beginning and 80.6MB in the end (delta: 891.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.21ms. Allocated memory is still 132.1MB. Free memory was 80.6MB in the beginning and 79.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 241.45ms. Allocated memory is still 132.1MB. Free memory was 79.4MB in the beginning and 71.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 17333.74ms. Allocated memory was 132.1MB in the beginning and 281.0MB in the end (delta: 148.9MB). Free memory was 71.0MB in the beginning and 165.3MB in the end (delta: -94.3MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. * Witness Printer took 64.92ms. Allocated memory is still 281.0MB. Free memory was 165.3MB in the beginning and 162.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (6 trivial, 3 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function ((-2 * j) + 103) and consists of 4 locations. One deterministic module has affine ranking function ((-2 * j) + 103) and consists of 3 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function ((-2 * j) + 103) and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 51 locations. The remainder module has 104 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.2s and 8 iterations. TraceHistogramMax:51. Analysis of lassos took 15.3s. Construction of modules took 0.3s. Büchi inclusion checks took 1.2s. 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, 348 IncrementalHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 53 mSDtfsCounter, 348 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN2 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 51ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 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: 12]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int j; [L8] j = 100 [L9] i = 0 VAL [i=0, j=100] [L11] COND TRUE i < j VAL [i=0, j=100] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=1, j=99] [L11] COND TRUE i < j VAL [i=1, j=99] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=2, j=98] [L11] COND TRUE i < j VAL [i=2, j=98] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=3, j=97] [L11] COND TRUE i < j VAL [i=3, j=97] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=4, j=96] [L11] COND TRUE i < j VAL [i=4, j=96] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=5, j=95] [L11] COND TRUE i < j VAL [i=5, j=95] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=6, j=94] [L11] COND TRUE i < j VAL [i=6, j=94] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=7, j=93] [L11] COND TRUE i < j VAL [i=7, j=93] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=8, j=92] [L11] COND TRUE i < j VAL [i=8, j=92] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=9, j=91] [L11] COND TRUE i < j VAL [i=9, j=91] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=10, j=90] [L11] COND TRUE i < j VAL [i=10, j=90] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=11, j=89] [L11] COND TRUE i < j VAL [i=11, j=89] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=12, j=88] [L11] COND TRUE i < j VAL [i=12, j=88] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=13, j=87] [L11] COND TRUE i < j VAL [i=13, j=87] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=14, j=86] [L11] COND TRUE i < j VAL [i=14, j=86] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=15, j=85] [L11] COND TRUE i < j VAL [i=15, j=85] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=16, j=84] [L11] COND TRUE i < j VAL [i=16, j=84] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=17, j=83] [L11] COND TRUE i < j VAL [i=17, j=83] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=18, j=82] [L11] COND TRUE i < j VAL [i=18, j=82] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=19, j=81] [L11] COND TRUE i < j VAL [i=19, j=81] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=20, j=80] [L11] COND TRUE i < j VAL [i=20, j=80] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=21, j=79] [L11] COND TRUE i < j VAL [i=21, j=79] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=22, j=78] [L11] COND TRUE i < j VAL [i=22, j=78] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=23, j=77] [L11] COND TRUE i < j VAL [i=23, j=77] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=24, j=76] [L11] COND TRUE i < j VAL [i=24, j=76] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=25, j=75] [L11] COND TRUE i < j VAL [i=25, j=75] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=26, j=74] [L11] COND TRUE i < j VAL [i=26, j=74] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=27, j=73] [L11] COND TRUE i < j VAL [i=27, j=73] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=28, j=72] [L11] COND TRUE i < j VAL [i=28, j=72] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=29, j=71] [L11] COND TRUE i < j VAL [i=29, j=71] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=30, j=70] [L11] COND TRUE i < j VAL [i=30, j=70] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=31, j=69] [L11] COND TRUE i < j VAL [i=31, j=69] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=32, j=68] [L11] COND TRUE i < j VAL [i=32, j=68] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=33, j=67] [L11] COND TRUE i < j VAL [i=33, j=67] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=34, j=66] [L11] COND TRUE i < j VAL [i=34, j=66] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=35, j=65] [L11] COND TRUE i < j VAL [i=35, j=65] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=36, j=64] [L11] COND TRUE i < j VAL [i=36, j=64] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=37, j=63] [L11] COND TRUE i < j VAL [i=37, j=63] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=38, j=62] [L11] COND TRUE i < j VAL [i=38, j=62] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=39, j=61] [L11] COND TRUE i < j VAL [i=39, j=61] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=40, j=60] [L11] COND TRUE i < j VAL [i=40, j=60] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=41, j=59] [L11] COND TRUE i < j VAL [i=41, j=59] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=42, j=58] [L11] COND TRUE i < j VAL [i=42, j=58] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=43, j=57] [L11] COND TRUE i < j VAL [i=43, j=57] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=44, j=56] [L11] COND TRUE i < j VAL [i=44, j=56] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=45, j=55] [L11] COND TRUE i < j VAL [i=45, j=55] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=46, j=54] [L11] COND TRUE i < j VAL [i=46, j=54] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=47, j=53] [L11] COND TRUE i < j VAL [i=47, j=53] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=49, j=51] [L11] COND TRUE i < j VAL [i=49, j=51] [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] Loop: [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 [L11] COND TRUE i < j End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] j = 100 [L9] i = 0 VAL [i=0, j=100] [L11] COND TRUE i < j VAL [i=0, j=100] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=1, j=99] [L11] COND TRUE i < j VAL [i=1, j=99] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=2, j=98] [L11] COND TRUE i < j VAL [i=2, j=98] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=3, j=97] [L11] COND TRUE i < j VAL [i=3, j=97] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=4, j=96] [L11] COND TRUE i < j VAL [i=4, j=96] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=5, j=95] [L11] COND TRUE i < j VAL [i=5, j=95] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=6, j=94] [L11] COND TRUE i < j VAL [i=6, j=94] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=7, j=93] [L11] COND TRUE i < j VAL [i=7, j=93] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=8, j=92] [L11] COND TRUE i < j VAL [i=8, j=92] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=9, j=91] [L11] COND TRUE i < j VAL [i=9, j=91] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=10, j=90] [L11] COND TRUE i < j VAL [i=10, j=90] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=11, j=89] [L11] COND TRUE i < j VAL [i=11, j=89] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=12, j=88] [L11] COND TRUE i < j VAL [i=12, j=88] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=13, j=87] [L11] COND TRUE i < j VAL [i=13, j=87] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=14, j=86] [L11] COND TRUE i < j VAL [i=14, j=86] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=15, j=85] [L11] COND TRUE i < j VAL [i=15, j=85] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=16, j=84] [L11] COND TRUE i < j VAL [i=16, j=84] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=17, j=83] [L11] COND TRUE i < j VAL [i=17, j=83] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=18, j=82] [L11] COND TRUE i < j VAL [i=18, j=82] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=19, j=81] [L11] COND TRUE i < j VAL [i=19, j=81] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=20, j=80] [L11] COND TRUE i < j VAL [i=20, j=80] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=21, j=79] [L11] COND TRUE i < j VAL [i=21, j=79] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=22, j=78] [L11] COND TRUE i < j VAL [i=22, j=78] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=23, j=77] [L11] COND TRUE i < j VAL [i=23, j=77] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=24, j=76] [L11] COND TRUE i < j VAL [i=24, j=76] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=25, j=75] [L11] COND TRUE i < j VAL [i=25, j=75] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=26, j=74] [L11] COND TRUE i < j VAL [i=26, j=74] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=27, j=73] [L11] COND TRUE i < j VAL [i=27, j=73] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=28, j=72] [L11] COND TRUE i < j VAL [i=28, j=72] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=29, j=71] [L11] COND TRUE i < j VAL [i=29, j=71] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=30, j=70] [L11] COND TRUE i < j VAL [i=30, j=70] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=31, j=69] [L11] COND TRUE i < j VAL [i=31, j=69] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=32, j=68] [L11] COND TRUE i < j VAL [i=32, j=68] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=33, j=67] [L11] COND TRUE i < j VAL [i=33, j=67] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=34, j=66] [L11] COND TRUE i < j VAL [i=34, j=66] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=35, j=65] [L11] COND TRUE i < j VAL [i=35, j=65] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=36, j=64] [L11] COND TRUE i < j VAL [i=36, j=64] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=37, j=63] [L11] COND TRUE i < j VAL [i=37, j=63] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=38, j=62] [L11] COND TRUE i < j VAL [i=38, j=62] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=39, j=61] [L11] COND TRUE i < j VAL [i=39, j=61] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=40, j=60] [L11] COND TRUE i < j VAL [i=40, j=60] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=41, j=59] [L11] COND TRUE i < j VAL [i=41, j=59] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=42, j=58] [L11] COND TRUE i < j VAL [i=42, j=58] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=43, j=57] [L11] COND TRUE i < j VAL [i=43, j=57] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=44, j=56] [L11] COND TRUE i < j VAL [i=44, j=56] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=45, j=55] [L11] COND TRUE i < j VAL [i=45, j=55] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=46, j=54] [L11] COND TRUE i < j VAL [i=46, j=54] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=47, j=53] [L11] COND TRUE i < j VAL [i=47, j=53] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=49, j=51] [L11] COND TRUE i < j VAL [i=49, j=51] [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] Loop: [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 [L11] COND TRUE i < j End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-06 21:16:26,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-06 21:16:26,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-06 21:16:27,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-06 21:16:27,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-06 21:16:27,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-06 21:16:27,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb91428e-5dba-4c6e-8812-9d826e1a9a88/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)