./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Ex08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a 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_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Ex08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:55:25,162 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:55:25,250 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 21:55:25,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:55:25,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:55:25,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:55:25,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:55:25,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:55:25,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:55:25,295 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:55:25,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:55:25,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:55:25,299 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:55:25,300 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 21:55:25,301 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 21:55:25,301 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 21:55:25,302 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 21:55:25,304 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 21:55:25,304 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 21:55:25,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:55:25,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 21:55:25,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:55:25,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:55:25,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 21:55:25,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 21:55:25,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 21:55:25,308 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:55:25,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:55:25,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:55:25,309 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 21:55:25,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:55:25,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:55:25,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:55:25,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:55:25,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:55:25,311 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 21:55:25,311 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_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 [2024-10-31 21:55:25,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:55:25,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:55:25,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:55:25,671 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:55:25,672 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:55:25,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-restricted-15/Ex08.c Unable to find full path for "g++" [2024-10-31 21:55:27,708 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:55:27,937 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:55:27,937 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/sv-benchmarks/c/termination-restricted-15/Ex08.c [2024-10-31 21:55:27,943 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/data/2819895c7/3b68cdf31cf84ad9acb6771c43765376/FLAGa0e7c8aae [2024-10-31 21:55:27,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/data/2819895c7/3b68cdf31cf84ad9acb6771c43765376 [2024-10-31 21:55:27,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:55:27,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:55:27,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:55:27,969 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:55:27,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:55:27,976 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:55:27" (1/1) ... [2024-10-31 21:55:27,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b2b91b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:27, skipping insertion in model container [2024-10-31 21:55:27,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:55:27" (1/1) ... [2024-10-31 21:55:27,999 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:55:28,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:55:28,185 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:55:28,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:55:28,215 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:55:28,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28 WrapperNode [2024-10-31 21:55:28,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:55:28,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:55:28,217 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:55:28,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:55:28,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,248 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-10-31 21:55:28,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:55:28,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:55:28,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:55:28,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:55:28,261 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,262 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,269 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 21:55:28,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,270 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,277 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:55:28,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:55:28,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:55:28,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:55:28,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (1/1) ... [2024-10-31 21:55:28,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:28,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:28,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:28,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 21:55:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:55:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:55:28,441 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:55:28,446 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:55:28,540 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-10-31 21:55:28,540 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:55:28,559 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:55:28,560 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 21:55:28,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:55:28 BoogieIcfgContainer [2024-10-31 21:55:28,561 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:55:28,562 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 21:55:28,563 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 21:55:28,567 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 21:55:28,568 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:55:28,568 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 09:55:27" (1/3) ... [2024-10-31 21:55:28,570 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a971c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 09:55:28, skipping insertion in model container [2024-10-31 21:55:28,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:55:28,570 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:55:28" (2/3) ... [2024-10-31 21:55:28,571 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a971c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 09:55:28, skipping insertion in model container [2024-10-31 21:55:28,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:55:28,572 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:55:28" (3/3) ... [2024-10-31 21:55:28,573 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ex08.c [2024-10-31 21:55:28,647 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 21:55:28,647 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 21:55:28,647 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 21:55:28,648 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 21:55:28,648 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 21:55:28,649 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 21:55:28,649 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 21:55:28,650 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 21:55:28,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2024-10-31 21:55:28,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 21:55:28,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:28,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:28,684 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:55:28,684 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:55:28,685 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 21:55:28,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2024-10-31 21:55:28,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 21:55:28,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:28,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:28,688 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:55:28,689 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:55:28,698 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4#L18-1true [2024-10-31 21:55:28,698 INFO L747 eck$LassoCheckResult]: Loop: 4#L18-1true assume !!(main_~i~0#1 > 0); 10#L12true assume !(1 == main_~i~0#1); 2#L12-2true assume 10 == main_~i~0#1;main_~up~0#1 := 0; 7#L15-1true assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4#L18-1true [2024-10-31 21:55:28,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:28,706 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 21:55:28,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:28,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923285180] [2024-10-31 21:55:28,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:28,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:28,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:28,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:28,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:28,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2024-10-31 21:55:28,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:28,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173507194] [2024-10-31 21:55:28,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:28,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:29,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:29,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:29,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173507194] [2024-10-31 21:55:29,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173507194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:29,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:29,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:55:29,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731734691] [2024-10-31 21:55:29,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:29,051 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 21:55:29,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:29,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:29,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:29,087 INFO L87 Difference]: Start difference. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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, 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) [2024-10-31 21:55:29,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:29,123 INFO L93 Difference]: Finished difference Result 16 states and 22 transitions. [2024-10-31 21:55:29,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2024-10-31 21:55:29,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-10-31 21:55:29,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 10 states and 15 transitions. [2024-10-31 21:55:29,132 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-10-31 21:55:29,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-10-31 21:55:29,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2024-10-31 21:55:29,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:55:29,134 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2024-10-31 21:55:29,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2024-10-31 21:55:29,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-10-31 21:55:29,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 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) [2024-10-31 21:55:29,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2024-10-31 21:55:29,167 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2024-10-31 21:55:29,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:29,178 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2024-10-31 21:55:29,178 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 21:55:29,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2024-10-31 21:55:29,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-10-31 21:55:29,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:29,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:29,180 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:55:29,180 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:55:29,180 INFO L745 eck$LassoCheckResult]: Stem: 40#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 41#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 42#L18-1 [2024-10-31 21:55:29,180 INFO L747 eck$LassoCheckResult]: Loop: 42#L18-1 assume !!(main_~i~0#1 > 0); 44#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 35#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 36#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 42#L18-1 [2024-10-31 21:55:29,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:29,185 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-10-31 21:55:29,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:29,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395337732] [2024-10-31 21:55:29,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:29,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:29,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:29,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:29,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:29,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1265324, now seen corresponding path program 1 times [2024-10-31 21:55:29,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:29,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560914044] [2024-10-31 21:55:29,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:29,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:29,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:29,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:29,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560914044] [2024-10-31 21:55:29,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560914044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:29,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:29,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:55:29,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155731517] [2024-10-31 21:55:29,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:29,261 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 21:55:29,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:29,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:29,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:29,268 INFO L87 Difference]: Start difference. First operand 10 states and 15 transitions. cyclomatic complexity: 6 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) [2024-10-31 21:55:29,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:29,298 INFO L93 Difference]: Finished difference Result 14 states and 21 transitions. [2024-10-31 21:55:29,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2024-10-31 21:55:29,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-10-31 21:55:29,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 21 transitions. [2024-10-31 21:55:29,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-10-31 21:55:29,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-31 21:55:29,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2024-10-31 21:55:29,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 21:55:29,301 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2024-10-31 21:55:29,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2024-10-31 21:55:29,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-10-31 21:55:29,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 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) [2024-10-31 21:55:29,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2024-10-31 21:55:29,304 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2024-10-31 21:55:29,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:29,306 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2024-10-31 21:55:29,306 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 21:55:29,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2024-10-31 21:55:29,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-10-31 21:55:29,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:29,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:29,308 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 21:55:29,308 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:55:29,308 INFO L745 eck$LassoCheckResult]: Stem: 69#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 70#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 72#L18-1 [2024-10-31 21:55:29,308 INFO L747 eck$LassoCheckResult]: Loop: 72#L18-1 assume !!(main_~i~0#1 > 0); 77#L12 assume !(1 == main_~i~0#1); 76#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 71#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 72#L18-1 [2024-10-31 21:55:29,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:29,309 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-10-31 21:55:29,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:29,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224157877] [2024-10-31 21:55:29,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:29,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:29,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:29,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:29,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:29,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1267246, now seen corresponding path program 1 times [2024-10-31 21:55:29,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:29,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648958610] [2024-10-31 21:55:29,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:29,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:29,330 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:29,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:29,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:29,337 INFO L85 PathProgramCache]: Analyzing trace with hash 889694448, now seen corresponding path program 1 times [2024-10-31 21:55:29,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:29,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151940596] [2024-10-31 21:55:29,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:29,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:29,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:29,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:29,428 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:29,429 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:29,429 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:29,429 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:29,429 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:55:29,430 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:29,430 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:29,430 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:29,430 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration3_Loop [2024-10-31 21:55:29,430 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:29,430 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:29,448 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:29,460 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:29,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:29,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:29,577 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:29,578 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:55:29,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:29,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:29,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:29,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 21:55:29,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:29,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:29,617 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:29,617 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:29,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 21:55:29,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:29,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:29,640 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:29,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 21:55:29,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:29,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:29,666 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:29,666 INFO L401 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: [] [2024-10-31 21:55:29,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:29,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:29,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:29,681 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:29,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 21:55:29,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:29,684 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:29,715 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:29,716 INFO L401 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: [] [2024-10-31 21:55:29,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 21:55:29,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:29,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:29,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:29,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 21:55:29,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:29,748 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:29,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 21:55:29,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:29,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:29,795 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:29,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 21:55:29,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:55:29,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:29,829 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:55:29,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 21:55:29,851 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:29,851 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:29,852 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:29,852 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:29,852 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:55:29,852 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:29,852 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:29,852 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:29,852 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration3_Loop [2024-10-31 21:55:29,853 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:29,853 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:29,856 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:29,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:29,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:29,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:29,957 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:29,963 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:55:29,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:29,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:29,967 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:29,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 21:55:29,970 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 [2024-10-31 21:55:29,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:29,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:29,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:29,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:29,992 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:55:29,992 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:55:30,007 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:30,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 21:55:30,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:30,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:30,032 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:30,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 21:55:30,036 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 [2024-10-31 21:55:30,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:30,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:30,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:30,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:30,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:55:30,057 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:55:30,063 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:30,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 21:55:30,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:30,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:30,086 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:30,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 21:55:30,090 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 [2024-10-31 21:55:30,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:30,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:55:30,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:30,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:30,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:30,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:55:30,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:55:30,119 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:55:30,129 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 21:55:30,129 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 21:55:30,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:30,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:30,144 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:30,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 21:55:30,152 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:55:30,152 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:55:30,152 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:55:30,153 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 21:55:30,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 21:55:30,175 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:55:30,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:30,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:30,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:55:30,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:30,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:30,260 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 [2024-10-31 21:55:30,261 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-10-31 21:55:30,332 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 35 states and 51 transitions. Complement of second has 7 states. [2024-10-31 21:55:30,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:30,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-10-31 21:55:30,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-10-31 21:55:30,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-31 21:55:30,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:30,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-31 21:55:30,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:30,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 8 letters. [2024-10-31 21:55:30,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:30,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 51 transitions. [2024-10-31 21:55:30,343 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 20 [2024-10-31 21:55:30,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 30 states and 44 transitions. [2024-10-31 21:55:30,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2024-10-31 21:55:30,344 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2024-10-31 21:55:30,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 44 transitions. [2024-10-31 21:55:30,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:30,345 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 44 transitions. [2024-10-31 21:55:30,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 44 transitions. [2024-10-31 21:55:30,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2024-10-31 21:55:30,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 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) [2024-10-31 21:55:30,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2024-10-31 21:55:30,360 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2024-10-31 21:55:30,360 INFO L425 stractBuchiCegarLoop]: Abstraction has 25 states and 36 transitions. [2024-10-31 21:55:30,360 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 21:55:30,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 36 transitions. [2024-10-31 21:55:30,362 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2024-10-31 21:55:30,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:30,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:30,362 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 21:55:30,362 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:55:30,363 INFO L745 eck$LassoCheckResult]: Stem: 164#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 165#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 167#L18-1 assume !!(main_~i~0#1 > 0); 161#L12 [2024-10-31 21:55:30,363 INFO L747 eck$LassoCheckResult]: Loop: 161#L12 assume !(1 == main_~i~0#1); 177#L12-2 assume !(10 == main_~i~0#1); 166#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 160#L18-1 assume !!(main_~i~0#1 > 0); 161#L12 [2024-10-31 21:55:30,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:30,364 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-10-31 21:55:30,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:30,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433301066] [2024-10-31 21:55:30,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:30,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:30,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:30,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:30,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:30,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1422198, now seen corresponding path program 1 times [2024-10-31 21:55:30,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:30,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146689538] [2024-10-31 21:55:30,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:30,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:30,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:30,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:30,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:30,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1810726045, now seen corresponding path program 1 times [2024-10-31 21:55:30,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:30,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20456399] [2024-10-31 21:55:30,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:30,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:30,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 21:55:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:30,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:30,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:30,551 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:30,552 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:30,552 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:30,552 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:30,552 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:55:30,552 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:30,552 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:30,552 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:30,553 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration4_Loop [2024-10-31 21:55:30,553 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:30,553 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:30,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:30,561 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:30,578 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:30,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:30,727 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:30,728 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:55:30,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:30,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:30,731 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:30,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 21:55:30,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:30,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:30,763 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:30,765 INFO L401 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: [] [2024-10-31 21:55:30,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 21:55:30,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:30,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:30,789 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:30,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 21:55:30,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:30,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:30,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 21:55:30,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:30,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:30,836 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:30,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 21:55:30,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:55:30,839 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:30,937 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:55:30,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 21:55:30,941 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:30,941 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:30,941 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:30,941 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:30,941 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:55:30,941 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:30,941 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:30,942 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:30,942 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration4_Loop [2024-10-31 21:55:30,942 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:30,942 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:30,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:30,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:30,965 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:30,970 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:31,099 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:31,100 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:55:31,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:31,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:31,103 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:31,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 21:55:31,107 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 [2024-10-31 21:55:31,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:31,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:31,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:31,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:31,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:55:31,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:55:31,133 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:31,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 21:55:31,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:31,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:31,157 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:31,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 21:55:31,160 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 [2024-10-31 21:55:31,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:31,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:55:31,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:31,175 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 21:55:31,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:31,178 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 21:55:31,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:55:31,188 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:55:31,192 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 21:55:31,192 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:55:31,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:31,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:31,195 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:31,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 21:55:31,197 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:55:31,197 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:55:31,197 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:55:31,198 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 21:55:31,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 21:55:31,217 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:55:31,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:31,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:31,260 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:55:31,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:31,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:31,311 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 [2024-10-31 21:55:31,311 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 36 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-10-31 21:55:31,365 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 36 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 41 states and 59 transitions. Complement of second has 7 states. [2024-10-31 21:55:31,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:31,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-10-31 21:55:31,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-10-31 21:55:31,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2024-10-31 21:55:31,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:31,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2024-10-31 21:55:31,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:31,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2024-10-31 21:55:31,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:31,370 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 59 transitions. [2024-10-31 21:55:31,375 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-10-31 21:55:31,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 32 states and 49 transitions. [2024-10-31 21:55:31,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-10-31 21:55:31,376 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-10-31 21:55:31,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 49 transitions. [2024-10-31 21:55:31,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:31,377 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2024-10-31 21:55:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 49 transitions. [2024-10-31 21:55:31,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-31 21:55:31,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.53125) internal successors, (49), 31 states have internal predecessors, (49), 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) [2024-10-31 21:55:31,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 49 transitions. [2024-10-31 21:55:31,386 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2024-10-31 21:55:31,386 INFO L425 stractBuchiCegarLoop]: Abstraction has 32 states and 49 transitions. [2024-10-31 21:55:31,386 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 21:55:31,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 49 transitions. [2024-10-31 21:55:31,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-10-31 21:55:31,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:31,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:31,388 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-31 21:55:31,388 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:55:31,389 INFO L745 eck$LassoCheckResult]: Stem: 273#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 274#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 277#L18-1 assume !!(main_~i~0#1 > 0); 280#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 281#L12-2 assume !(10 == main_~i~0#1); 287#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 288#L18-1 [2024-10-31 21:55:31,391 INFO L747 eck$LassoCheckResult]: Loop: 288#L18-1 assume !!(main_~i~0#1 > 0); 295#L12 assume !(1 == main_~i~0#1); 289#L12-2 assume !(10 == main_~i~0#1); 290#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 288#L18-1 [2024-10-31 21:55:31,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:31,392 INFO L85 PathProgramCache]: Analyzing trace with hash 889692586, now seen corresponding path program 1 times [2024-10-31 21:55:31,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:31,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534580508] [2024-10-31 21:55:31,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:31,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:31,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:31,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:31,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:31,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1267306, now seen corresponding path program 1 times [2024-10-31 21:55:31,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:31,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73317120] [2024-10-31 21:55:31,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:31,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:31,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:31,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:31,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:31,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1068497811, now seen corresponding path program 1 times [2024-10-31 21:55:31,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:31,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079101896] [2024-10-31 21:55:31,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:31,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:31,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:31,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:31,512 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:31,512 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:31,512 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:31,512 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:31,512 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:55:31,512 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:31,512 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:31,513 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:31,513 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Loop [2024-10-31 21:55:31,513 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:31,513 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:31,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:31,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:31,537 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:31,540 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:31,674 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:31,674 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:55:31,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:31,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:31,677 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:31,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 21:55:31,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:31,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:31,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:31,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:31,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:31,712 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:31,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 21:55:31,714 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:55:31,714 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:31,752 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:31,752 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=14} Honda state: {ULTIMATE.start_main_~i~0#1=14} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0#1=1}, {ULTIMATE.start_main_~i~0#1=0}, {ULTIMATE.start_main_~i~0#1=0}] Lambdas: [1, 17, 6] Nus: [1, 0] [2024-10-31 21:55:31,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 21:55:31,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:31,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:31,773 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:31,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 21:55:31,777 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:31,777 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:31,802 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:31,802 INFO L401 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: [] [2024-10-31 21:55:31,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:31,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:31,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:31,816 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:31,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 21:55:31,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:31,819 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:31,832 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:31,832 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:31,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:31,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:31,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:31,845 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:31,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 21:55:31,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:31,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:31,867 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:31,867 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:31,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:31,917 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:31,917 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:31,918 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:31,918 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:31,918 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:55:31,918 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:31,918 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:31,918 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:31,918 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Lasso [2024-10-31 21:55:31,918 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:31,918 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:31,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:31,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:31,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:31,933 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:31,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:31,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:32,089 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:32,091 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:55:32,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,094 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 21:55:32,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:32,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:32,116 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:32,116 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:32,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-10-31 21:55:32,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,140 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 21:55:32,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:32,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:32,160 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:32,160 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:32,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:32,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,176 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 21:55:32,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:32,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:32,197 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:32,197 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:32,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:32,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,213 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 21:55:32,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:32,215 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:32,230 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:32,231 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:32,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:32,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,252 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 21:55:32,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:32,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:32,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-10-31 21:55:32,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,294 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 21:55:32,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:55:32,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:32,344 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:55:32,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-10-31 21:55:32,348 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:32,348 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:32,348 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:32,348 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:32,348 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:55:32,348 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,348 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:32,349 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:32,349 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Lasso [2024-10-31 21:55:32,349 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:32,349 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:32,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:32,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:32,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:32,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:32,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:32,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:32,537 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:32,537 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:55:32,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,539 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 21:55:32,542 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 [2024-10-31 21:55:32,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:32,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:32,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:32,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:32,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:55:32,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:55:32,586 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:32,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 21:55:32,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-10-31 21:55:32,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,608 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 21:55:32,611 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 [2024-10-31 21:55:32,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:32,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:55:32,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:32,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:32,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:32,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:55:32,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:55:32,632 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:32,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:32,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,657 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 21:55:32,660 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 [2024-10-31 21:55:32,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:32,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:32,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:32,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:32,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:55:32,681 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:55:32,688 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:32,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:32,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,709 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 21:55:32,711 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 [2024-10-31 21:55:32,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:32,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:55:32,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:32,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:32,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:32,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:55:32,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:55:32,729 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:32,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:32,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,749 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 21:55:32,756 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 [2024-10-31 21:55:32,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:32,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:32,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:32,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:32,773 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:55:32,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:55:32,777 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:32,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-10-31 21:55:32,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,797 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 21:55:32,799 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 [2024-10-31 21:55:32,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:32,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:32,814 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 21:55:32,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:32,822 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-31 21:55:32,822 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 21:55:32,839 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:55:32,874 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2024-10-31 21:55:32,874 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2024-10-31 21:55:32,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:32,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:32,877 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:32,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 21:55:32,879 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:55:32,903 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2024-10-31 21:55:32,903 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:55:32,903 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 21 Supporting invariants [-1*ULTIMATE.start_main_~i~0#1 + 10 >= 0] [2024-10-31 21:55:32,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:32,927 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-10-31 21:55:32,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:32,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:55:32,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,030 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:55:33,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:33,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:33,089 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-10-31 21:55:33,089 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 49 transitions. cyclomatic complexity: 21 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2024-10-31 21:55:33,226 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 49 transitions. cyclomatic complexity: 21. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) Result 46 states and 68 transitions. Complement of second has 8 states. [2024-10-31 21:55:33,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:33,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2024-10-31 21:55:33,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2024-10-31 21:55:33,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-31 21:55:33,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:33,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 10 letters. Loop has 4 letters. [2024-10-31 21:55:33,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:33,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 8 letters. [2024-10-31 21:55:33,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:33,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 68 transitions. [2024-10-31 21:55:33,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-10-31 21:55:33,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 45 states and 67 transitions. [2024-10-31 21:55:33,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2024-10-31 21:55:33,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-10-31 21:55:33,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 67 transitions. [2024-10-31 21:55:33,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:33,236 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 67 transitions. [2024-10-31 21:55:33,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 67 transitions. [2024-10-31 21:55:33,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2024-10-31 21:55:33,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 41 states have internal predecessors, (64), 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) [2024-10-31 21:55:33,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 64 transitions. [2024-10-31 21:55:33,241 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 64 transitions. [2024-10-31 21:55:33,241 INFO L425 stractBuchiCegarLoop]: Abstraction has 42 states and 64 transitions. [2024-10-31 21:55:33,241 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 21:55:33,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 64 transitions. [2024-10-31 21:55:33,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-10-31 21:55:33,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:33,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:33,243 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:33,243 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:55:33,243 INFO L745 eck$LassoCheckResult]: Stem: 416#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 417#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 420#L18-1 assume !!(main_~i~0#1 > 0); 429#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 426#L12-2 assume !(10 == main_~i~0#1); 425#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 424#L18-1 assume !!(main_~i~0#1 > 0); 421#L12 assume !(1 == main_~i~0#1); 422#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 447#L15-1 [2024-10-31 21:55:33,243 INFO L747 eck$LassoCheckResult]: Loop: 447#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 446#L18-1 assume !!(main_~i~0#1 > 0); 444#L12 assume !(1 == main_~i~0#1); 445#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 447#L15-1 [2024-10-31 21:55:33,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:33,244 INFO L85 PathProgramCache]: Analyzing trace with hash 588656997, now seen corresponding path program 1 times [2024-10-31 21:55:33,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:33,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687864519] [2024-10-31 21:55:33,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:33,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:33,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:33,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687864519] [2024-10-31 21:55:33,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687864519] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:33,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449365126] [2024-10-31 21:55:33,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:33,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:33,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:33,332 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:33,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-10-31 21:55:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 21:55:33,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:33,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:33,391 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:33,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:33,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449365126] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:33,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:33,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-31 21:55:33,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921582852] [2024-10-31 21:55:33,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:33,433 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 21:55:33,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:33,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1768756, now seen corresponding path program 2 times [2024-10-31 21:55:33,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:33,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549376376] [2024-10-31 21:55:33,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:33,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:33,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:33,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:33,491 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:33,491 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:33,491 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:33,491 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:33,491 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:55:33,492 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:33,492 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:33,492 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:33,492 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration6_Loop [2024-10-31 21:55:33,492 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:33,492 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:33,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:33,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:33,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:33,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:33,585 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:33,585 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:55:33,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:33,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:33,588 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:33,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 21:55:33,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:33,591 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:33,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:33,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:33,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:33,628 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:33,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 21:55:33,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:55:33,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:33,649 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:55:33,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:33,670 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:33,670 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:33,670 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:33,670 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:33,670 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:55:33,671 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:33,671 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:33,671 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:33,671 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration6_Loop [2024-10-31 21:55:33,671 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:33,671 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:33,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:33,683 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:33,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:33,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:33,779 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:33,779 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:55:33,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:33,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:33,783 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:33,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-31 21:55:33,787 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 [2024-10-31 21:55:33,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:33,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:55:33,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:33,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:33,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:33,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:55:33,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:55:33,810 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:55:33,815 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 21:55:33,815 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:55:33,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:33,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:33,816 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:33,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-31 21:55:33,818 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:55:33,819 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:55:33,819 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:55:33,819 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 21:55:33,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-10-31 21:55:33,835 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:55:33,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:33,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:33,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:55:33,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:33,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:33,913 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 [2024-10-31 21:55:33,913 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 27 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-10-31 21:55:33,957 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 27. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 105 states and 160 transitions. Complement of second has 7 states. [2024-10-31 21:55:33,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:33,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-10-31 21:55:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2024-10-31 21:55:33,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2024-10-31 21:55:33,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:33,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 4 letters. [2024-10-31 21:55:33,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:33,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 8 letters. [2024-10-31 21:55:33,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:33,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 160 transitions. [2024-10-31 21:55:33,966 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-10-31 21:55:33,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 87 states and 133 transitions. [2024-10-31 21:55:33,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-10-31 21:55:33,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2024-10-31 21:55:33,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 133 transitions. [2024-10-31 21:55:33,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:33,969 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 133 transitions. [2024-10-31 21:55:33,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 133 transitions. [2024-10-31 21:55:33,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2024-10-31 21:55:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.548780487804878) internal successors, (127), 81 states have internal predecessors, (127), 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) [2024-10-31 21:55:33,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 127 transitions. [2024-10-31 21:55:33,979 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 127 transitions. [2024-10-31 21:55:33,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:33,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:55:33,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:55:33,980 INFO L87 Difference]: Start difference. First operand 82 states and 127 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 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) [2024-10-31 21:55:34,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:34,063 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2024-10-31 21:55:34,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 239 transitions. [2024-10-31 21:55:34,065 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 52 [2024-10-31 21:55:34,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 239 transitions. [2024-10-31 21:55:34,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2024-10-31 21:55:34,068 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2024-10-31 21:55:34,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 239 transitions. [2024-10-31 21:55:34,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:34,069 INFO L218 hiAutomatonCegarLoop]: Abstraction has 160 states and 239 transitions. [2024-10-31 21:55:34,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 239 transitions. [2024-10-31 21:55:34,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 136. [2024-10-31 21:55:34,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 136 states have (on average 1.5220588235294117) internal successors, (207), 135 states have internal predecessors, (207), 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) [2024-10-31 21:55:34,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 207 transitions. [2024-10-31 21:55:34,081 INFO L240 hiAutomatonCegarLoop]: Abstraction has 136 states and 207 transitions. [2024-10-31 21:55:34,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:55:34,082 INFO L425 stractBuchiCegarLoop]: Abstraction has 136 states and 207 transitions. [2024-10-31 21:55:34,083 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 21:55:34,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 207 transitions. [2024-10-31 21:55:34,084 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2024-10-31 21:55:34,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:34,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:34,085 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2024-10-31 21:55:34,085 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:55:34,086 INFO L745 eck$LassoCheckResult]: Stem: 918#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 919#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 922#L18-1 assume !!(main_~i~0#1 > 0); 933#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 931#L12-2 assume !(10 == main_~i~0#1); 926#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 927#L18-1 assume !!(main_~i~0#1 > 0); 1005#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 979#L12-2 assume !(10 == main_~i~0#1); 1007#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 985#L18-1 [2024-10-31 21:55:34,086 INFO L747 eck$LassoCheckResult]: Loop: 985#L18-1 assume !!(main_~i~0#1 > 0); 995#L12 assume !(1 == main_~i~0#1); 968#L12-2 assume !(10 == main_~i~0#1); 990#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 985#L18-1 [2024-10-31 21:55:34,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:34,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1068495891, now seen corresponding path program 1 times [2024-10-31 21:55:34,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:34,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653596113] [2024-10-31 21:55:34,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:34,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,160 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:34,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:34,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653596113] [2024-10-31 21:55:34,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653596113] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:34,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:34,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:55:34,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836440301] [2024-10-31 21:55:34,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:34,163 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 21:55:34,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:34,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1267308, now seen corresponding path program 2 times [2024-10-31 21:55:34,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:34,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469578865] [2024-10-31 21:55:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:34,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:34,173 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:34,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:34,226 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:34,227 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:34,227 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:34,227 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:34,227 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:55:34,227 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:34,227 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:34,227 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:34,228 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration7_Loop [2024-10-31 21:55:34,228 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:34,228 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:34,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:34,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:34,251 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:34,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:34,377 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:34,377 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:55:34,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:34,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:34,380 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:34,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-31 21:55:34,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:34,383 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:34,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:34,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:34,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:34,431 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:34,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-31 21:55:34,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:55:34,435 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:34,501 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:55:34,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:34,506 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:34,506 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:34,506 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:34,506 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:34,506 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:55:34,506 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:34,506 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:34,506 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:34,506 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration7_Loop [2024-10-31 21:55:34,507 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:34,507 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:34,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:34,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:34,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:34,531 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:34,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:34,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-10-31 21:55:34,696 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:34,696 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:55:34,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:34,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:34,698 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:34,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-31 21:55:34,702 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 [2024-10-31 21:55:34,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:34,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:55:34,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:34,716 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 21:55:34,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:34,718 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 21:55:34,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:55:34,724 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:55:34,727 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 21:55:34,727 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:55:34,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:34,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:34,730 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:34,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-31 21:55:34,733 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:55:34,733 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:55:34,733 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:55:34,733 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 21:55:34,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-10-31 21:55:34,758 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:55:34,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:34,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:34,813 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:55:34,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:34,854 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 [2024-10-31 21:55:34,854 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 136 states and 207 transitions. cyclomatic complexity: 82 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2024-10-31 21:55:34,911 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 136 states and 207 transitions. cyclomatic complexity: 82. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 248 states and 381 transitions. Complement of second has 5 states. [2024-10-31 21:55:34,911 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 [2024-10-31 21:55:34,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2024-10-31 21:55:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2024-10-31 21:55:34,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 4 letters. [2024-10-31 21:55:34,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:34,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2024-10-31 21:55:34,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:34,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 8 letters. [2024-10-31 21:55:34,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:34,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 381 transitions. [2024-10-31 21:55:34,917 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2024-10-31 21:55:34,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 224 states and 333 transitions. [2024-10-31 21:55:34,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2024-10-31 21:55:34,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 112 [2024-10-31 21:55:34,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 333 transitions. [2024-10-31 21:55:34,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:34,921 INFO L218 hiAutomatonCegarLoop]: Abstraction has 224 states and 333 transitions. [2024-10-31 21:55:34,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 333 transitions. [2024-10-31 21:55:34,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 202. [2024-10-31 21:55:34,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 202 states have (on average 1.504950495049505) internal successors, (304), 201 states have internal predecessors, (304), 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) [2024-10-31 21:55:34,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 304 transitions. [2024-10-31 21:55:34,936 INFO L240 hiAutomatonCegarLoop]: Abstraction has 202 states and 304 transitions. [2024-10-31 21:55:34,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:34,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:55:34,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:55:34,937 INFO L87 Difference]: Start difference. First operand 202 states and 304 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-10-31 21:55:34,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:34,968 INFO L93 Difference]: Finished difference Result 230 states and 313 transitions. [2024-10-31 21:55:34,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 230 states and 313 transitions. [2024-10-31 21:55:34,971 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 58 [2024-10-31 21:55:34,975 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 230 states to 230 states and 313 transitions. [2024-10-31 21:55:34,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 129 [2024-10-31 21:55:34,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2024-10-31 21:55:34,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 230 states and 313 transitions. [2024-10-31 21:55:34,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:34,979 INFO L218 hiAutomatonCegarLoop]: Abstraction has 230 states and 313 transitions. [2024-10-31 21:55:34,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states and 313 transitions. [2024-10-31 21:55:34,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 201. [2024-10-31 21:55:35,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 201 states have (on average 1.3830845771144278) internal successors, (278), 200 states have internal predecessors, (278), 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) [2024-10-31 21:55:35,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 278 transitions. [2024-10-31 21:55:35,005 INFO L240 hiAutomatonCegarLoop]: Abstraction has 201 states and 278 transitions. [2024-10-31 21:55:35,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:55:35,010 INFO L425 stractBuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2024-10-31 21:55:35,010 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 21:55:35,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 278 transitions. [2024-10-31 21:55:35,014 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 52 [2024-10-31 21:55:35,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:35,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:35,017 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 21:55:35,017 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:55:35,017 INFO L745 eck$LassoCheckResult]: Stem: 1796#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1797#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1800#L18-1 assume !!(main_~i~0#1 > 0); 1816#L12 assume !(1 == main_~i~0#1); 1819#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 1818#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1814#L18-1 assume !!(main_~i~0#1 > 0); 1815#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 1940#L12-2 assume !(10 == main_~i~0#1); 1824#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1803#L18-1 assume !!(main_~i~0#1 > 0); 1804#L12 assume !(1 == main_~i~0#1); 1986#L12-2 assume !(10 == main_~i~0#1); 1807#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1791#L18-1 [2024-10-31 21:55:35,017 INFO L747 eck$LassoCheckResult]: Loop: 1791#L18-1 assume !!(main_~i~0#1 > 0); 1792#L12 assume !(1 == main_~i~0#1); 1801#L12-2 assume !(10 == main_~i~0#1); 1808#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1791#L18-1 [2024-10-31 21:55:35,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:35,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1454758974, now seen corresponding path program 1 times [2024-10-31 21:55:35,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:35,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081019364] [2024-10-31 21:55:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:35,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 21:55:35,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:35,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081019364] [2024-10-31 21:55:35,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081019364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:35,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:35,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:55:35,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621867089] [2024-10-31 21:55:35,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:35,078 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 21:55:35,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:35,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1267308, now seen corresponding path program 3 times [2024-10-31 21:55:35,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:35,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359623513] [2024-10-31 21:55:35,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:35,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:35,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:35,094 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:35,150 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:35,150 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:35,150 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:35,150 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:35,150 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:55:35,150 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:35,150 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:35,151 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:35,151 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration8_Loop [2024-10-31 21:55:35,151 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:35,151 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:35,152 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:35,158 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:35,162 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:35,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:35,309 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:35,309 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:55:35,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:35,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:35,312 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:35,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-10-31 21:55:35,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:35,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:35,345 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:35,345 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_12=1} Honda state: {v_rep~unnamed0~0~true_12=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:35,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:35,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:35,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:35,381 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:35,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-10-31 21:55:35,383 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:35,383 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:35,409 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:35,409 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=4} Honda state: {ULTIMATE.start_main_~up~0#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:35,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:35,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:35,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:35,436 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:35,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-10-31 21:55:35,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:35,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:35,466 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:35,466 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_12=0} Honda state: {v_rep~unnamed0~0~false_12=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:35,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:35,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:35,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:35,484 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:35,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-10-31 21:55:35,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:35,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:35,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-10-31 21:55:35,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:35,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:35,514 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:35,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-10-31 21:55:35,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:55:35,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:35,555 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:55:35,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-10-31 21:55:35,558 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:35,558 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:35,558 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:35,558 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:35,558 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:55:35,558 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:35,558 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:35,558 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:35,559 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration8_Loop [2024-10-31 21:55:35,559 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:35,559 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:35,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:35,565 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:35,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:35,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:35,671 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:35,671 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:55:35,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:35,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:35,672 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:35,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-10-31 21:55:35,674 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 [2024-10-31 21:55:35,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:35,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:35,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:35,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:35,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:55:35,688 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:55:35,692 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:35,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-10-31 21:55:35,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:35,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:35,714 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:35,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-10-31 21:55:35,720 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 [2024-10-31 21:55:35,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:35,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:55:35,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:35,735 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 21:55:35,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:35,736 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 21:55:35,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:55:35,738 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:35,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:35,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:35,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:35,752 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:35,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-10-31 21:55:35,754 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 [2024-10-31 21:55:35,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:35,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:35,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:35,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:35,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:55:35,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:55:35,772 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:35,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-10-31 21:55:35,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:35,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:35,794 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:35,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-10-31 21:55:35,796 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 [2024-10-31 21:55:35,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:35,809 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:55:35,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:35,809 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 21:55:35,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:35,810 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-10-31 21:55:35,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:55:35,815 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:55:35,818 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 21:55:35,818 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:55:35,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:35,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:35,820 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:35,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-10-31 21:55:35,822 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:55:35,823 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:55:35,823 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:55:35,823 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 21:55:35,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-10-31 21:55:35,842 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:55:35,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:35,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:35,908 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:55:35,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:35,945 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 [2024-10-31 21:55:35,946 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-31 21:55:35,982 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 280 states and 401 transitions. Complement of second has 5 states. [2024-10-31 21:55:35,983 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 [2024-10-31 21:55:35,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-31 21:55:35,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2024-10-31 21:55:35,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2024-10-31 21:55:35,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:35,985 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:55:36,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:36,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,041 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:55:36,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:36,071 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 [2024-10-31 21:55:36,071 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-31 21:55:36,098 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 280 states and 401 transitions. Complement of second has 5 states. [2024-10-31 21:55:36,098 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 [2024-10-31 21:55:36,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-31 21:55:36,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2024-10-31 21:55:36,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2024-10-31 21:55:36,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:36,100 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:55:36,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:36,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,155 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:55:36,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:36,186 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 [2024-10-31 21:55:36,187 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-31 21:55:36,221 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 201 states and 278 transitions. cyclomatic complexity: 94. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 334 states and 496 transitions. Complement of second has 4 states. [2024-10-31 21:55:36,221 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 [2024-10-31 21:55:36,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-31 21:55:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2024-10-31 21:55:36,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2024-10-31 21:55:36,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:36,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 18 letters. Loop has 4 letters. [2024-10-31 21:55:36,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:36,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 8 letters. [2024-10-31 21:55:36,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:36,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 334 states and 496 transitions. [2024-10-31 21:55:36,228 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2024-10-31 21:55:36,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 334 states to 268 states and 378 transitions. [2024-10-31 21:55:36,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2024-10-31 21:55:36,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2024-10-31 21:55:36,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 268 states and 378 transitions. [2024-10-31 21:55:36,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:36,232 INFO L218 hiAutomatonCegarLoop]: Abstraction has 268 states and 378 transitions. [2024-10-31 21:55:36,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states and 378 transitions. [2024-10-31 21:55:36,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 167. [2024-10-31 21:55:36,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.401197604790419) internal successors, (234), 166 states have internal predecessors, (234), 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) [2024-10-31 21:55:36,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 234 transitions. [2024-10-31 21:55:36,240 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167 states and 234 transitions. [2024-10-31 21:55:36,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:36,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:55:36,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:55:36,241 INFO L87 Difference]: Start difference. First operand 167 states and 234 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2024-10-31 21:55:36,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:36,273 INFO L93 Difference]: Finished difference Result 179 states and 246 transitions. [2024-10-31 21:55:36,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 179 states and 246 transitions. [2024-10-31 21:55:36,274 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 92 [2024-10-31 21:55:36,276 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 179 states to 177 states and 243 transitions. [2024-10-31 21:55:36,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2024-10-31 21:55:36,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2024-10-31 21:55:36,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 243 transitions. [2024-10-31 21:55:36,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:36,277 INFO L218 hiAutomatonCegarLoop]: Abstraction has 177 states and 243 transitions. [2024-10-31 21:55:36,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 243 transitions. [2024-10-31 21:55:36,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 170. [2024-10-31 21:55:36,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 170 states have (on average 1.3764705882352941) internal successors, (234), 169 states have internal predecessors, (234), 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) [2024-10-31 21:55:36,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 234 transitions. [2024-10-31 21:55:36,283 INFO L240 hiAutomatonCegarLoop]: Abstraction has 170 states and 234 transitions. [2024-10-31 21:55:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:55:36,284 INFO L425 stractBuchiCegarLoop]: Abstraction has 170 states and 234 transitions. [2024-10-31 21:55:36,284 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-31 21:55:36,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 170 states and 234 transitions. [2024-10-31 21:55:36,286 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2024-10-31 21:55:36,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:36,286 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:36,287 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 21:55:36,287 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1] [2024-10-31 21:55:36,287 INFO L745 eck$LassoCheckResult]: Stem: 3427#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3428#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3432#L18-1 assume !!(main_~i~0#1 > 0); 3546#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 3533#L12-2 assume !(10 == main_~i~0#1); 3435#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3436#L18-1 assume !!(main_~i~0#1 > 0); 3553#L12 assume !(1 == main_~i~0#1); 3545#L12-2 assume !(10 == main_~i~0#1); 3543#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3440#L18-1 [2024-10-31 21:55:36,287 INFO L747 eck$LassoCheckResult]: Loop: 3440#L18-1 assume !!(main_~i~0#1 > 0); 3536#L12 assume !(1 == main_~i~0#1); 3474#L12-2 assume !(10 == main_~i~0#1); 3532#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3530#L18-1 assume !!(main_~i~0#1 > 0); 3528#L12 assume !(1 == main_~i~0#1); 3525#L12-2 assume !(10 == main_~i~0#1); 3438#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3440#L18-1 [2024-10-31 21:55:36,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:36,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1068497813, now seen corresponding path program 1 times [2024-10-31 21:55:36,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:36,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520896682] [2024-10-31 21:55:36,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:36,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 21:55:36,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:36,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520896682] [2024-10-31 21:55:36,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520896682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:36,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:36,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:55:36,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160562403] [2024-10-31 21:55:36,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:36,314 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 21:55:36,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:36,315 INFO L85 PathProgramCache]: Analyzing trace with hash -2142023595, now seen corresponding path program 1 times [2024-10-31 21:55:36,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:36,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079760979] [2024-10-31 21:55:36,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:36,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:55:36,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:36,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079760979] [2024-10-31 21:55:36,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079760979] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:55:36,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:55:36,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:55:36,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048724119] [2024-10-31 21:55:36,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:55:36,371 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 21:55:36,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:36,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:55:36,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:55:36,372 INFO L87 Difference]: Start difference. First operand 170 states and 234 transitions. cyclomatic complexity: 73 Second operand has 3 states, 2 states have (on average 4.0) 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) [2024-10-31 21:55:36,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:36,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:36,411 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2024-10-31 21:55:36,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 118 transitions. [2024-10-31 21:55:36,413 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2024-10-31 21:55:36,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 84 states and 95 transitions. [2024-10-31 21:55:36,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2024-10-31 21:55:36,414 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2024-10-31 21:55:36,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84 states and 95 transitions. [2024-10-31 21:55:36,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:36,417 INFO L218 hiAutomatonCegarLoop]: Abstraction has 84 states and 95 transitions. [2024-10-31 21:55:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states and 95 transitions. [2024-10-31 21:55:36,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2024-10-31 21:55:36,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.1341463414634145) internal successors, (93), 81 states have internal predecessors, (93), 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) [2024-10-31 21:55:36,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2024-10-31 21:55:36,420 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 93 transitions. [2024-10-31 21:55:36,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:55:36,425 INFO L425 stractBuchiCegarLoop]: Abstraction has 82 states and 93 transitions. [2024-10-31 21:55:36,425 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-10-31 21:55:36,425 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 93 transitions. [2024-10-31 21:55:36,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2024-10-31 21:55:36,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:36,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:36,427 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 1, 1, 1, 1] [2024-10-31 21:55:36,427 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 5, 5, 4, 2, 1, 1] [2024-10-31 21:55:36,427 INFO L745 eck$LassoCheckResult]: Stem: 3709#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3710#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3713#L18-1 assume !!(main_~i~0#1 > 0); 3740#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 3734#L12-2 assume !(10 == main_~i~0#1); 3733#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3732#L18-1 assume !!(main_~i~0#1 > 0); 3731#L12 assume !(1 == main_~i~0#1); 3730#L12-2 assume !(10 == main_~i~0#1); 3729#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3728#L18-1 assume !!(main_~i~0#1 > 0); 3727#L12 assume !(1 == main_~i~0#1); 3726#L12-2 assume !(10 == main_~i~0#1); 3725#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3724#L18-1 assume !!(main_~i~0#1 > 0); 3721#L12 assume !(1 == main_~i~0#1); 3723#L12-2 assume !(10 == main_~i~0#1); 3722#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3720#L18-1 assume !!(main_~i~0#1 > 0); 3719#L12 assume !(1 == main_~i~0#1); 3718#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3711#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3707#L18-1 assume !!(main_~i~0#1 > 0); 3708#L12 assume !(1 == main_~i~0#1); 3702#L12-2 assume !(10 == main_~i~0#1); 3704#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3712#L18-1 assume !!(main_~i~0#1 > 0); 3714#L12 [2024-10-31 21:55:36,427 INFO L747 eck$LassoCheckResult]: Loop: 3714#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 3700#L12-2 assume !(10 == main_~i~0#1); 3701#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3705#L18-1 assume !!(main_~i~0#1 > 0); 3706#L12 assume !(1 == main_~i~0#1); 3781#L12-2 assume !(10 == main_~i~0#1); 3780#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3779#L18-1 assume !!(main_~i~0#1 > 0); 3778#L12 assume !(1 == main_~i~0#1); 3777#L12-2 assume !(10 == main_~i~0#1); 3776#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3775#L18-1 assume !!(main_~i~0#1 > 0); 3774#L12 assume !(1 == main_~i~0#1); 3773#L12-2 assume !(10 == main_~i~0#1); 3748#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3744#L18-1 assume !!(main_~i~0#1 > 0); 3736#L12 assume !(1 == main_~i~0#1); 3737#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3715#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3716#L18-1 assume !!(main_~i~0#1 > 0); 3708#L12 assume !(1 == main_~i~0#1); 3702#L12-2 assume !(10 == main_~i~0#1); 3704#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3712#L18-1 assume !!(main_~i~0#1 > 0); 3714#L12 [2024-10-31 21:55:36,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:36,429 INFO L85 PathProgramCache]: Analyzing trace with hash -608617554, now seen corresponding path program 2 times [2024-10-31 21:55:36,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-10-31 21:55:36,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:36,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094748552] [2024-10-31 21:55:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:36,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,584 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 21:55:36,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:36,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094748552] [2024-10-31 21:55:36,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094748552] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:36,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365116024] [2024-10-31 21:55:36,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 21:55:36,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:36,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:36,586 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:36,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-10-31 21:55:36,638 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 21:55:36,639 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:55:36,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:55:36,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:36,692 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 21:55:36,693 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:36,802 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 21:55:36,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365116024] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:36,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:36,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-10-31 21:55:36,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835652867] [2024-10-31 21:55:36,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:36,803 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 21:55:36,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:36,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1118663673, now seen corresponding path program 1 times [2024-10-31 21:55:36,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:36,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752643466] [2024-10-31 21:55:36,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:36,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,895 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 21:55:36,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:36,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752643466] [2024-10-31 21:55:36,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752643466] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:36,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175628732] [2024-10-31 21:55:36,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:36,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:36,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:36,900 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:36,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-10-31 21:55:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:36,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:55:36,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 21:55:36,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:37,100 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 21:55:37,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175628732] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:37,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:37,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-10-31 21:55:37,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497877688] [2024-10-31 21:55:37,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:37,101 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 21:55:37,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:37,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 21:55:37,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:55:37,102 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. cyclomatic complexity: 17 Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 10 states have internal predecessors, (40), 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) [2024-10-31 21:55:37,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:37,188 INFO L93 Difference]: Finished difference Result 169 states and 180 transitions. [2024-10-31 21:55:37,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 180 transitions. [2024-10-31 21:55:37,190 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2024-10-31 21:55:37,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 149 states and 160 transitions. [2024-10-31 21:55:37,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2024-10-31 21:55:37,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2024-10-31 21:55:37,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 160 transitions. [2024-10-31 21:55:37,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:37,192 INFO L218 hiAutomatonCegarLoop]: Abstraction has 149 states and 160 transitions. [2024-10-31 21:55:37,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 160 transitions. [2024-10-31 21:55:37,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 142. [2024-10-31 21:55:37,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 142 states have (on average 1.0774647887323943) internal successors, (153), 141 states have internal predecessors, (153), 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) [2024-10-31 21:55:37,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 153 transitions. [2024-10-31 21:55:37,196 INFO L240 hiAutomatonCegarLoop]: Abstraction has 142 states and 153 transitions. [2024-10-31 21:55:37,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 21:55:37,198 INFO L425 stractBuchiCegarLoop]: Abstraction has 142 states and 153 transitions. [2024-10-31 21:55:37,199 INFO L332 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-10-31 21:55:37,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 153 transitions. [2024-10-31 21:55:37,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 46 [2024-10-31 21:55:37,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:37,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:37,202 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [12, 10, 10, 9, 2, 1, 1, 1, 1] [2024-10-31 21:55:37,204 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [11, 10, 10, 9, 2, 1, 1] [2024-10-31 21:55:37,204 INFO L745 eck$LassoCheckResult]: Stem: 4276#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4277#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4280#L18-1 assume !!(main_~i~0#1 > 0); 4382#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 4268#L12-2 assume !(10 == main_~i~0#1); 4269#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4368#L18-1 assume !!(main_~i~0#1 > 0); 4367#L12 assume !(1 == main_~i~0#1); 4366#L12-2 assume !(10 == main_~i~0#1); 4365#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4364#L18-1 assume !!(main_~i~0#1 > 0); 4363#L12 assume !(1 == main_~i~0#1); 4362#L12-2 assume !(10 == main_~i~0#1); 4361#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4360#L18-1 assume !!(main_~i~0#1 > 0); 4359#L12 assume !(1 == main_~i~0#1); 4358#L12-2 assume !(10 == main_~i~0#1); 4357#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4356#L18-1 assume !!(main_~i~0#1 > 0); 4355#L12 assume !(1 == main_~i~0#1); 4354#L12-2 assume !(10 == main_~i~0#1); 4353#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4352#L18-1 assume !!(main_~i~0#1 > 0); 4351#L12 assume !(1 == main_~i~0#1); 4350#L12-2 assume !(10 == main_~i~0#1); 4349#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4348#L18-1 assume !!(main_~i~0#1 > 0); 4347#L12 assume !(1 == main_~i~0#1); 4346#L12-2 assume !(10 == main_~i~0#1); 4345#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4344#L18-1 assume !!(main_~i~0#1 > 0); 4343#L12 assume !(1 == main_~i~0#1); 4342#L12-2 assume !(10 == main_~i~0#1); 4341#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4340#L18-1 assume !!(main_~i~0#1 > 0); 4290#L12 assume !(1 == main_~i~0#1); 4294#L12-2 assume !(10 == main_~i~0#1); 4291#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4289#L18-1 assume !!(main_~i~0#1 > 0); 4288#L12 assume !(1 == main_~i~0#1); 4287#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4278#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4279#L18-1 assume !!(main_~i~0#1 > 0); 4336#L12 assume !(1 == main_~i~0#1); 4338#L12-2 assume !(10 == main_~i~0#1); 4337#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4335#L18-1 assume !!(main_~i~0#1 > 0); 4334#L12 [2024-10-31 21:55:37,205 INFO L747 eck$LassoCheckResult]: Loop: 4334#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 4333#L12-2 assume !(10 == main_~i~0#1); 4332#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4331#L18-1 assume !!(main_~i~0#1 > 0); 4330#L12 assume !(1 == main_~i~0#1); 4329#L12-2 assume !(10 == main_~i~0#1); 4328#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4327#L18-1 assume !!(main_~i~0#1 > 0); 4326#L12 assume !(1 == main_~i~0#1); 4325#L12-2 assume !(10 == main_~i~0#1); 4324#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4323#L18-1 assume !!(main_~i~0#1 > 0); 4322#L12 assume !(1 == main_~i~0#1); 4321#L12-2 assume !(10 == main_~i~0#1); 4320#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4319#L18-1 assume !!(main_~i~0#1 > 0); 4318#L12 assume !(1 == main_~i~0#1); 4317#L12-2 assume !(10 == main_~i~0#1); 4316#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4315#L18-1 assume !!(main_~i~0#1 > 0); 4314#L12 assume !(1 == main_~i~0#1); 4313#L12-2 assume !(10 == main_~i~0#1); 4312#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4311#L18-1 assume !!(main_~i~0#1 > 0); 4310#L12 assume !(1 == main_~i~0#1); 4309#L12-2 assume !(10 == main_~i~0#1); 4308#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4307#L18-1 assume !!(main_~i~0#1 > 0); 4306#L12 assume !(1 == main_~i~0#1); 4305#L12-2 assume !(10 == main_~i~0#1); 4304#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4303#L18-1 assume !!(main_~i~0#1 > 0); 4302#L12 assume !(1 == main_~i~0#1); 4301#L12-2 assume !(10 == main_~i~0#1); 4299#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4295#L18-1 assume !!(main_~i~0#1 > 0); 4292#L12 assume !(1 == main_~i~0#1); 4293#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4284#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4285#L18-1 assume !!(main_~i~0#1 > 0); 4336#L12 assume !(1 == main_~i~0#1); 4338#L12-2 assume !(10 == main_~i~0#1); 4337#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4335#L18-1 assume !!(main_~i~0#1 > 0); 4334#L12 [2024-10-31 21:55:37,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:37,205 INFO L85 PathProgramCache]: Analyzing trace with hash -733322943, now seen corresponding path program 3 times [2024-10-31 21:55:37,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:37,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384791926] [2024-10-31 21:55:37,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:37,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:37,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:37,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:37,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:37,244 INFO L85 PathProgramCache]: Analyzing trace with hash 491326234, now seen corresponding path program 2 times [2024-10-31 21:55:37,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:37,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872915585] [2024-10-31 21:55:37,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:37,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:37,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:37,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:37,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:37,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1133081510, now seen corresponding path program 4 times [2024-10-31 21:55:37,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:37,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970682494] [2024-10-31 21:55:37,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:37,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:37,439 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 562 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-10-31 21:55:37,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:37,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970682494] [2024-10-31 21:55:37,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970682494] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:37,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967664185] [2024-10-31 21:55:37,443 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 21:55:37,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:37,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:37,445 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:37,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-10-31 21:55:37,523 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 21:55:37,523 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:55:37,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:55:37,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:37,557 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 562 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-10-31 21:55:37,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:37,612 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 562 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-10-31 21:55:37,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967664185] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:37,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:37,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-10-31 21:55:37,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580571248] [2024-10-31 21:55:37,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:37,864 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:37,864 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:37,864 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:37,865 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:37,865 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:55:37,865 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:37,865 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:37,865 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:37,865 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration11_Loop [2024-10-31 21:55:37,865 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:37,865 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:37,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:37,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:37,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:37,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:37,939 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:37,939 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:55:37,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:37,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:37,941 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:37,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-10-31 21:55:37,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:37,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:37,971 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:37,971 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_14=1} Honda state: {v_rep~unnamed0~0~true_14=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:37,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:37,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:37,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:37,987 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:37,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-10-31 21:55:37,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:37,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:38,017 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:38,018 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_14=0} Honda state: {v_rep~unnamed0~0~false_14=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:38,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:38,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:38,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:38,043 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:38,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-10-31 21:55:38,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:38,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:38,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:38,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:38,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:38,091 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:38,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-10-31 21:55:38,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:55:38,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:38,114 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:55:38,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:38,137 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:38,137 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:38,137 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:38,137 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:38,137 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:55:38,137 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:38,137 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:38,137 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:38,137 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration11_Loop [2024-10-31 21:55:38,138 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:38,138 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:38,139 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:38,144 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:38,148 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:38,156 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:38,217 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:38,217 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:55:38,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:38,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:38,220 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:38,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-10-31 21:55:38,223 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 [2024-10-31 21:55:38,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:38,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:38,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:38,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:38,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:55:38,245 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:55:38,250 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:38,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:38,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:38,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:38,275 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:38,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-10-31 21:55:38,278 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 [2024-10-31 21:55:38,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:38,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:38,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:38,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:38,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:55:38,299 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:55:38,304 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:38,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:38,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:38,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:38,330 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:38,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-10-31 21:55:38,333 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 [2024-10-31 21:55:38,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:38,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:55:38,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:38,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:38,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:38,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:55:38,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:55:38,358 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:55:38,362 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 21:55:38,362 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:55:38,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:38,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:38,366 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:38,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-10-31 21:55:38,368 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:55:38,369 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:55:38,369 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:55:38,369 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 9 Supporting invariants [] [2024-10-31 21:55:38,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:38,393 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:55:38,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:38,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:38,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:38,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:55:38,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:38,766 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-31 21:55:38,767 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2024-10-31 21:55:38,767 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:55:38,835 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 228 states and 242 transitions. Complement of second has 7 states. [2024-10-31 21:55:38,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:38,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:55:38,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2024-10-31 21:55:38,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 47 letters. Loop has 44 letters. [2024-10-31 21:55:38,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:38,841 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:55:38,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:38,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:38,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:38,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:55:38,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:39,156 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-31 21:55:39,157 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2024-10-31 21:55:39,158 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:55:39,262 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 238 states and 253 transitions. Complement of second has 11 states. [2024-10-31 21:55:39,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:39,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:55:39,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2024-10-31 21:55:39,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 47 letters. Loop has 44 letters. [2024-10-31 21:55:39,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:39,264 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:55:39,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:39,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:55:39,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:39,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-31 21:55:39,566 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 5 loop predicates [2024-10-31 21:55:39,567 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:55:39,613 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 268 states and 284 transitions. Complement of second has 9 states. [2024-10-31 21:55:39,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:39,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:55:39,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2024-10-31 21:55:39,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 47 letters. Loop has 44 letters. [2024-10-31 21:55:39,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:39,619 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:55:39,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:39,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:39,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:55:39,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-31 21:55:39,903 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2024-10-31 21:55:39,903 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:55:39,994 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 153 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 380 states and 401 transitions. Complement of second has 19 states. [2024-10-31 21:55:39,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:39,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:55:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2024-10-31 21:55:39,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 47 letters. Loop has 44 letters. [2024-10-31 21:55:39,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:39,997 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:55:40,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:40,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:40,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:40,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 21:55:40,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:40,243 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-31 21:55:40,245 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2024-10-31 21:55:40,246 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:55:40,556 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 142 states and 153 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1899 states and 2480 transitions. Complement of second has 166 states 20 powerset states146 rank states. The highest rank that occured is 5 [2024-10-31 21:55:40,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:40,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:55:40,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 70 transitions. [2024-10-31 21:55:40,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 47 letters. Loop has 44 letters. [2024-10-31 21:55:40,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:40,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 91 letters. Loop has 44 letters. [2024-10-31 21:55:40,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:40,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 47 letters. Loop has 88 letters. [2024-10-31 21:55:40,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:40,581 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1899 states and 2480 transitions. [2024-10-31 21:55:40,599 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 96 [2024-10-31 21:55:40,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1899 states to 956 states and 1245 transitions. [2024-10-31 21:55:40,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 100 [2024-10-31 21:55:40,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2024-10-31 21:55:40,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 956 states and 1245 transitions. [2024-10-31 21:55:40,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:40,607 INFO L218 hiAutomatonCegarLoop]: Abstraction has 956 states and 1245 transitions. [2024-10-31 21:55:40,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states and 1245 transitions. [2024-10-31 21:55:40,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 564. [2024-10-31 21:55:40,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 564 states have (on average 1.3953900709219857) internal successors, (787), 563 states have internal predecessors, (787), 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) [2024-10-31 21:55:40,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 787 transitions. [2024-10-31 21:55:40,623 INFO L240 hiAutomatonCegarLoop]: Abstraction has 564 states and 787 transitions. [2024-10-31 21:55:40,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:40,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:55:40,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-10-31 21:55:40,624 INFO L87 Difference]: Start difference. First operand 564 states and 787 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 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) [2024-10-31 21:55:40,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:40,696 INFO L93 Difference]: Finished difference Result 692 states and 978 transitions. [2024-10-31 21:55:40,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 692 states and 978 transitions. [2024-10-31 21:55:40,701 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 98 [2024-10-31 21:55:40,704 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 692 states to 675 states and 954 transitions. [2024-10-31 21:55:40,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2024-10-31 21:55:40,705 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2024-10-31 21:55:40,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 675 states and 954 transitions. [2024-10-31 21:55:40,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:40,705 INFO L218 hiAutomatonCegarLoop]: Abstraction has 675 states and 954 transitions. [2024-10-31 21:55:40,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states and 954 transitions. [2024-10-31 21:55:40,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 634. [2024-10-31 21:55:40,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 634 states have (on average 1.411671924290221) internal successors, (895), 633 states have internal predecessors, (895), 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) [2024-10-31 21:55:40,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 895 transitions. [2024-10-31 21:55:40,719 INFO L240 hiAutomatonCegarLoop]: Abstraction has 634 states and 895 transitions. [2024-10-31 21:55:40,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:55:40,720 INFO L425 stractBuchiCegarLoop]: Abstraction has 634 states and 895 transitions. [2024-10-31 21:55:40,720 INFO L332 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2024-10-31 21:55:40,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 634 states and 895 transitions. [2024-10-31 21:55:40,724 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 90 [2024-10-31 21:55:40,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:40,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:40,729 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [16, 14, 14, 9, 6, 1, 1, 1, 1] [2024-10-31 21:55:40,729 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [15, 14, 14, 9, 6, 1, 1] [2024-10-31 21:55:40,731 INFO L745 eck$LassoCheckResult]: Stem: 10858#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 10859#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 10863#L18-1 assume !!(main_~i~0#1 > 0); 11194#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 11045#L12-2 assume !(10 == main_~i~0#1); 11186#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11185#L18-1 assume !!(main_~i~0#1 > 0); 11183#L12 assume !(1 == main_~i~0#1); 11181#L12-2 assume !(10 == main_~i~0#1); 11179#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11177#L18-1 assume !!(main_~i~0#1 > 0); 11175#L12 assume !(1 == main_~i~0#1); 11173#L12-2 assume !(10 == main_~i~0#1); 11171#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11169#L18-1 assume !!(main_~i~0#1 > 0); 11167#L12 assume !(1 == main_~i~0#1); 11165#L12-2 assume !(10 == main_~i~0#1); 11163#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11161#L18-1 assume !!(main_~i~0#1 > 0); 11159#L12 assume !(1 == main_~i~0#1); 11157#L12-2 assume !(10 == main_~i~0#1); 11155#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11153#L18-1 assume !!(main_~i~0#1 > 0); 11151#L12 assume !(1 == main_~i~0#1); 11149#L12-2 assume !(10 == main_~i~0#1); 11147#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11145#L18-1 assume !!(main_~i~0#1 > 0); 11143#L12 assume !(1 == main_~i~0#1); 11141#L12-2 assume !(10 == main_~i~0#1); 11139#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11137#L18-1 assume !!(main_~i~0#1 > 0); 11135#L12 assume !(1 == main_~i~0#1); 11133#L12-2 assume !(10 == main_~i~0#1); 11131#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11127#L18-1 assume !!(main_~i~0#1 > 0); 11125#L12 assume !(1 == main_~i~0#1); 11123#L12-2 assume !(10 == main_~i~0#1); 11119#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11120#L18-1 assume !!(main_~i~0#1 > 0); 11128#L12 assume !(1 == main_~i~0#1); 11111#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11070#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11109#L18-1 assume !!(main_~i~0#1 > 0); 11108#L12 assume !(1 == main_~i~0#1); 11107#L12-2 assume !(10 == main_~i~0#1); 11105#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11104#L18-1 assume !!(main_~i~0#1 > 0); 11103#L12 assume !(1 == main_~i~0#1); 11102#L12-2 assume !(10 == main_~i~0#1); 11100#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11099#L18-1 assume !!(main_~i~0#1 > 0); 11098#L12 assume !(1 == main_~i~0#1); 11097#L12-2 assume !(10 == main_~i~0#1); 11095#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11094#L18-1 assume !!(main_~i~0#1 > 0); 11093#L12 assume !(1 == main_~i~0#1); 11092#L12-2 assume !(10 == main_~i~0#1); 11090#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11089#L18-1 assume !!(main_~i~0#1 > 0); 11042#L12 assume !(1 == main_~i~0#1); 11069#L12-2 assume !(10 == main_~i~0#1); 11046#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11047#L18-1 assume !!(main_~i~0#1 > 0); 11190#L12 [2024-10-31 21:55:40,732 INFO L747 eck$LassoCheckResult]: Loop: 11190#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 11187#L12-2 assume !(10 == main_~i~0#1); 10867#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 10868#L18-1 assume !!(main_~i~0#1 > 0); 10855#L12 assume !(1 == main_~i~0#1); 10865#L12-2 assume !(10 == main_~i~0#1); 11481#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11479#L18-1 assume !!(main_~i~0#1 > 0); 11477#L12 assume !(1 == main_~i~0#1); 11475#L12-2 assume !(10 == main_~i~0#1); 11473#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11471#L18-1 assume !!(main_~i~0#1 > 0); 11469#L12 assume !(1 == main_~i~0#1); 11467#L12-2 assume !(10 == main_~i~0#1); 11465#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11463#L18-1 assume !!(main_~i~0#1 > 0); 11461#L12 assume !(1 == main_~i~0#1); 11459#L12-2 assume !(10 == main_~i~0#1); 11457#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11455#L18-1 assume !!(main_~i~0#1 > 0); 11453#L12 assume !(1 == main_~i~0#1); 11451#L12-2 assume !(10 == main_~i~0#1); 11449#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11447#L18-1 assume !!(main_~i~0#1 > 0); 11445#L12 assume !(1 == main_~i~0#1); 11443#L12-2 assume !(10 == main_~i~0#1); 11441#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11439#L18-1 assume !!(main_~i~0#1 > 0); 11437#L12 assume !(1 == main_~i~0#1); 11435#L12-2 assume !(10 == main_~i~0#1); 11433#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11431#L18-1 assume !!(main_~i~0#1 > 0); 11430#L12 assume !(1 == main_~i~0#1); 11429#L12-2 assume !(10 == main_~i~0#1); 11425#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11426#L18-1 assume !!(main_~i~0#1 > 0); 11418#L12 assume !(1 == main_~i~0#1); 11419#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11292#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11416#L18-1 assume !!(main_~i~0#1 > 0); 11415#L12 assume !(1 == main_~i~0#1); 11414#L12-2 assume !(10 == main_~i~0#1); 11413#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11412#L18-1 assume !!(main_~i~0#1 > 0); 11411#L12 assume !(1 == main_~i~0#1); 11410#L12-2 assume !(10 == main_~i~0#1); 11409#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11408#L18-1 assume !!(main_~i~0#1 > 0); 11407#L12 assume !(1 == main_~i~0#1); 11368#L12-2 assume !(10 == main_~i~0#1); 11367#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11364#L18-1 assume !!(main_~i~0#1 > 0); 11365#L12 assume !(1 == main_~i~0#1); 11372#L12-2 assume !(10 == main_~i~0#1); 11370#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11371#L18-1 assume !!(main_~i~0#1 > 0); 11356#L12 assume !(1 == main_~i~0#1); 11352#L12-2 assume !(10 == main_~i~0#1); 11293#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11424#L18-1 assume !!(main_~i~0#1 > 0); 11190#L12 [2024-10-31 21:55:40,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:40,732 INFO L85 PathProgramCache]: Analyzing trace with hash 912728085, now seen corresponding path program 5 times [2024-10-31 21:55:40,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:40,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678257783] [2024-10-31 21:55:40,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:40,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:40,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:40,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:40,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:40,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1190197230, now seen corresponding path program 3 times [2024-10-31 21:55:40,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:40,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896387470] [2024-10-31 21:55:40,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:40,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:40,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:40,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:40,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:40,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1444454914, now seen corresponding path program 6 times [2024-10-31 21:55:40,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:40,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166425081] [2024-10-31 21:55:40,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:40,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:41,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 1138 proven. 55 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2024-10-31 21:55:41,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:55:41,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166425081] [2024-10-31 21:55:41,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166425081] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:55:41,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348231927] [2024-10-31 21:55:41,074 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-31 21:55:41,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:55:41,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:41,076 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:55:41,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-10-31 21:55:41,145 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 22 check-sat command(s) [2024-10-31 21:55:41,145 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:55:41,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 21:55:41,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:41,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 1138 proven. 55 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2024-10-31 21:55:41,194 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:55:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 1138 proven. 55 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2024-10-31 21:55:41,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348231927] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:55:41,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:55:41,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2024-10-31 21:55:41,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888782298] [2024-10-31 21:55:41,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:55:41,578 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:41,578 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:41,578 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:41,579 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:41,579 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:55:41,579 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:41,579 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:41,579 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:41,579 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration12_Loop [2024-10-31 21:55:41,579 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:41,579 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:41,580 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:41,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:41,587 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:41,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:41,641 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:41,641 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:55:41,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:41,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:41,644 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:41,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-10-31 21:55:41,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:41,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:41,674 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:41,674 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_16=1} Honda state: {v_rep~unnamed0~0~true_16=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:41,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:41,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:41,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:41,694 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:41,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-10-31 21:55:41,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:41,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:41,714 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:55:41,714 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:55:41,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2024-10-31 21:55:41,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:41,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:41,735 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:41,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:55:41,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:41,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-10-31 21:55:41,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:41,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:41,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:41,773 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:41,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-10-31 21:55:41,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:55:41,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:55:41,792 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:55:41,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2024-10-31 21:55:41,810 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:55:41,810 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:55:41,810 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:55:41,810 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:55:41,810 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:55:41,810 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:41,810 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:55:41,810 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:55:41,811 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration12_Loop [2024-10-31 21:55:41,811 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:55:41,811 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:55:41,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:41,815 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:41,819 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:41,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:55:41,867 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:55:41,867 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:55:41,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:41,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:41,869 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:41,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-10-31 21:55:41,871 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 [2024-10-31 21:55:41,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:41,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:41,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:41,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:41,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 21:55:41,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 21:55:41,891 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:41,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:41,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:41,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:41,910 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:41,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-10-31 21:55:41,913 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 [2024-10-31 21:55:41,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:41,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:55:41,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:41,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:41,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:41,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:55:41,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:55:41,934 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:55:41,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:41,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:41,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:41,953 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:41,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-10-31 21:55:41,955 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 [2024-10-31 21:55:41,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:55:41,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:55:41,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:55:41,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:55:41,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:55:41,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:55:41,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:55:41,977 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:55:41,980 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 21:55:41,980 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 21:55:41,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:55:41,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:55:41,983 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:55:41,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-10-31 21:55:41,985 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:55:41,985 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:55:41,985 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:55:41,985 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 5 Supporting invariants [] [2024-10-31 21:55:42,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:42,003 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:55:42,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:42,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:42,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:42,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 21:55:42,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-31 21:55:42,430 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2024-10-31 21:55:42,430 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-10-31 21:55:42,496 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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 1120 states and 1472 transitions. Complement of second has 7 states. [2024-10-31 21:55:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:42,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-10-31 21:55:42,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2024-10-31 21:55:42,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 63 letters. Loop has 60 letters. [2024-10-31 21:55:42,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:42,505 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:55:42,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2024-10-31 21:55:42,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:42,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:42,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:42,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 21:55:42,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-31 21:55:42,998 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2024-10-31 21:55:42,999 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-10-31 21:55:43,100 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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 1179 states and 1565 transitions. Complement of second has 11 states. [2024-10-31 21:55:43,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:43,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-10-31 21:55:43,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2024-10-31 21:55:43,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 63 letters. Loop has 60 letters. [2024-10-31 21:55:43,102 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:43,102 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:55:43,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:43,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:43,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:43,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 21:55:43,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:43,545 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-31 21:55:43,545 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 9 loop predicates [2024-10-31 21:55:43,546 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-10-31 21:55:43,591 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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 1301 states and 1787 transitions. Complement of second has 9 states. [2024-10-31 21:55:43,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:43,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-10-31 21:55:43,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2024-10-31 21:55:43,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 63 letters. Loop has 60 letters. [2024-10-31 21:55:43,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:43,595 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:55:43,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:43,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:43,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:43,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 21:55:43,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:44,021 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-31 21:55:44,021 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2024-10-31 21:55:44,022 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-10-31 21:55:44,146 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 634 states and 895 transitions. cyclomatic complexity: 279. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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 1866 states and 2535 transitions. Complement of second has 19 states. [2024-10-31 21:55:44,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:44,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-10-31 21:55:44,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2024-10-31 21:55:44,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 63 letters. Loop has 60 letters. [2024-10-31 21:55:44,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:44,149 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 21:55:44,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:44,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 21:55:44,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:55:44,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 21:55:44,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:55:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-31 21:55:44,597 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2024-10-31 21:55:44,598 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-10-31 21:55:45,355 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 634 states and 895 transitions. cyclomatic complexity: 279 Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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 11129 states and 19734 transitions. Complement of second has 282 states 36 powerset states246 rank states. The highest rank that occured is 5 [2024-10-31 21:55:45,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 10 non-accepting loop states 1 accepting loop states [2024-10-31 21:55:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2024-10-31 21:55:45,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 110 transitions. [2024-10-31 21:55:45,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 110 transitions. Stem has 63 letters. Loop has 60 letters. [2024-10-31 21:55:45,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:45,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 110 transitions. Stem has 123 letters. Loop has 60 letters. [2024-10-31 21:55:45,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:45,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 110 transitions. Stem has 63 letters. Loop has 120 letters. [2024-10-31 21:55:45,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:55:45,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11129 states and 19734 transitions. [2024-10-31 21:55:45,488 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 248 [2024-10-31 21:55:45,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11129 states to 4882 states and 8741 transitions. [2024-10-31 21:55:45,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 330 [2024-10-31 21:55:45,528 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 575 [2024-10-31 21:55:45,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4882 states and 8741 transitions. [2024-10-31 21:55:45,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:45,529 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4882 states and 8741 transitions. [2024-10-31 21:55:45,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4882 states and 8741 transitions. [2024-10-31 21:55:45,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4882 to 3014. [2024-10-31 21:55:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3014 states, 3014 states have (on average 1.813868613138686) internal successors, (5467), 3013 states have internal predecessors, (5467), 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) [2024-10-31 21:55:45,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3014 states to 3014 states and 5467 transitions. [2024-10-31 21:55:45,628 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3014 states and 5467 transitions. [2024-10-31 21:55:45,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:55:45,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 21:55:45,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:55:45,630 INFO L87 Difference]: Start difference. First operand 3014 states and 5467 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 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) [2024-10-31 21:55:45,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:55:45,737 INFO L93 Difference]: Finished difference Result 3401 states and 6312 transitions. [2024-10-31 21:55:45,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3401 states and 6312 transitions. [2024-10-31 21:55:45,769 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 168 [2024-10-31 21:55:45,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3401 states to 3369 states and 6221 transitions. [2024-10-31 21:55:45,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 238 [2024-10-31 21:55:45,792 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 238 [2024-10-31 21:55:45,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3369 states and 6221 transitions. [2024-10-31 21:55:45,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:55:45,794 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3369 states and 6221 transitions. [2024-10-31 21:55:45,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states and 6221 transitions. [2024-10-31 21:55:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3222. [2024-10-31 21:55:45,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3222 states have (on average 1.8395406579764122) internal successors, (5927), 3221 states have internal predecessors, (5927), 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) [2024-10-31 21:55:45,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 5927 transitions. [2024-10-31 21:55:45,869 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3222 states and 5927 transitions. [2024-10-31 21:55:45,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 21:55:45,870 INFO L425 stractBuchiCegarLoop]: Abstraction has 3222 states and 5927 transitions. [2024-10-31 21:55:45,870 INFO L332 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2024-10-31 21:55:45,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3222 states and 5927 transitions. [2024-10-31 21:55:45,889 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 152 [2024-10-31 21:55:45,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:55:45,890 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:55:45,894 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [19, 17, 17, 9, 9, 1, 1, 1, 1] [2024-10-31 21:55:45,897 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [18, 17, 17, 9, 9, 1, 1] [2024-10-31 21:55:45,897 INFO L745 eck$LassoCheckResult]: Stem: 37489#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 37490#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 37494#L18-1 assume !!(main_~i~0#1 > 0); 37746#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 39008#L12-2 assume !(10 == main_~i~0#1); 39006#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 39004#L18-1 assume !!(main_~i~0#1 > 0); 39002#L12 assume !(1 == main_~i~0#1); 39000#L12-2 assume !(10 == main_~i~0#1); 38998#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38996#L18-1 assume !!(main_~i~0#1 > 0); 38994#L12 assume !(1 == main_~i~0#1); 38992#L12-2 assume !(10 == main_~i~0#1); 38990#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38988#L18-1 assume !!(main_~i~0#1 > 0); 38986#L12 assume !(1 == main_~i~0#1); 38984#L12-2 assume !(10 == main_~i~0#1); 38982#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38980#L18-1 assume !!(main_~i~0#1 > 0); 38978#L12 assume !(1 == main_~i~0#1); 38976#L12-2 assume !(10 == main_~i~0#1); 38974#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38972#L18-1 assume !!(main_~i~0#1 > 0); 38970#L12 assume !(1 == main_~i~0#1); 38968#L12-2 assume !(10 == main_~i~0#1); 38966#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38964#L18-1 assume !!(main_~i~0#1 > 0); 38962#L12 assume !(1 == main_~i~0#1); 38960#L12-2 assume !(10 == main_~i~0#1); 38958#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38956#L18-1 assume !!(main_~i~0#1 > 0); 38954#L12 assume !(1 == main_~i~0#1); 38952#L12-2 assume !(10 == main_~i~0#1); 38950#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38948#L18-1 assume !!(main_~i~0#1 > 0); 38941#L12 assume !(1 == main_~i~0#1); 38944#L12-2 assume !(10 == main_~i~0#1); 38945#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 38939#L18-1 assume !!(main_~i~0#1 > 0); 38940#L12 assume !(1 == main_~i~0#1); 38717#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 38331#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38693#L18-1 assume !!(main_~i~0#1 > 0); 38687#L12 assume !(1 == main_~i~0#1); 38685#L12-2 assume !(10 == main_~i~0#1); 38682#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38678#L18-1 assume !!(main_~i~0#1 > 0); 38674#L12 assume !(1 == main_~i~0#1); 38670#L12-2 assume !(10 == main_~i~0#1); 38667#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38662#L18-1 assume !!(main_~i~0#1 > 0); 38663#L12 assume !(1 == main_~i~0#1); 38655#L12-2 assume !(10 == main_~i~0#1); 38650#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38645#L18-1 assume !!(main_~i~0#1 > 0); 38646#L12 assume !(1 == main_~i~0#1); 38631#L12-2 assume !(10 == main_~i~0#1); 38632#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38695#L18-1 assume !!(main_~i~0#1 > 0); 38694#L12 assume !(1 == main_~i~0#1); 38616#L12-2 assume !(10 == main_~i~0#1); 38615#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38707#L18-1 assume !!(main_~i~0#1 > 0); 38604#L12 assume !(1 == main_~i~0#1); 38599#L12-2 assume !(10 == main_~i~0#1); 38600#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38714#L18-1 assume !!(main_~i~0#1 > 0); 38709#L12 assume !(1 == main_~i~0#1); 38586#L12-2 assume !(10 == main_~i~0#1); 38587#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 38901#L18-1 assume !!(main_~i~0#1 > 0); 38321#L12 assume !(1 == main_~i~0#1); 39857#L12-2 assume !(10 == main_~i~0#1); 39855#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40135#L18-1 assume !!(main_~i~0#1 > 0); 37502#L12 [2024-10-31 21:55:45,897 INFO L747 eck$LassoCheckResult]: Loop: 37502#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 37480#L12-2 assume !(10 == main_~i~0#1); 37481#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40643#L18-1 assume !!(main_~i~0#1 > 0); 37495#L12 assume !(1 == main_~i~0#1); 37496#L12-2 assume !(10 == main_~i~0#1); 40675#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40674#L18-1 assume !!(main_~i~0#1 > 0); 40673#L12 assume !(1 == main_~i~0#1); 40672#L12-2 assume !(10 == main_~i~0#1); 40671#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40670#L18-1 assume !!(main_~i~0#1 > 0); 40669#L12 assume !(1 == main_~i~0#1); 40668#L12-2 assume !(10 == main_~i~0#1); 40667#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40666#L18-1 assume !!(main_~i~0#1 > 0); 40665#L12 assume !(1 == main_~i~0#1); 40664#L12-2 assume !(10 == main_~i~0#1); 40663#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40662#L18-1 assume !!(main_~i~0#1 > 0); 40661#L12 assume !(1 == main_~i~0#1); 40660#L12-2 assume !(10 == main_~i~0#1); 40659#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40658#L18-1 assume !!(main_~i~0#1 > 0); 40657#L12 assume !(1 == main_~i~0#1); 40656#L12-2 assume !(10 == main_~i~0#1); 40655#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40654#L18-1 assume !!(main_~i~0#1 > 0); 40653#L12 assume !(1 == main_~i~0#1); 40652#L12-2 assume !(10 == main_~i~0#1); 40651#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40650#L18-1 assume !!(main_~i~0#1 > 0); 40649#L12 assume !(1 == main_~i~0#1); 40648#L12-2 assume !(10 == main_~i~0#1); 40641#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 40642#L18-1 assume !!(main_~i~0#1 > 0); 40461#L12 assume !(1 == main_~i~0#1); 40462#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 39577#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40435#L18-1 assume !!(main_~i~0#1 > 0); 40432#L12 assume !(1 == main_~i~0#1); 40429#L12-2 assume !(10 == main_~i~0#1); 40426#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40425#L18-1 assume !!(main_~i~0#1 > 0); 40424#L12 assume !(1 == main_~i~0#1); 40422#L12-2 assume !(10 == main_~i~0#1); 40419#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40415#L18-1 assume !!(main_~i~0#1 > 0); 40416#L12 assume !(1 == main_~i~0#1); 40405#L12-2 assume !(10 == main_~i~0#1); 40406#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40397#L18-1 assume !!(main_~i~0#1 > 0); 40398#L12 assume !(1 == main_~i~0#1); 40384#L12-2 assume !(10 == main_~i~0#1); 40380#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40373#L18-1 assume !!(main_~i~0#1 > 0); 40374#L12 assume !(1 == main_~i~0#1); 40362#L12-2 assume !(10 == main_~i~0#1); 40358#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40359#L18-1 assume !!(main_~i~0#1 > 0); 40353#L12 assume !(1 == main_~i~0#1); 40348#L12-2 assume !(10 == main_~i~0#1); 40349#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 40455#L18-1 assume !!(main_~i~0#1 > 0); 40454#L12 assume !(1 == main_~i~0#1); 40336#L12-2 assume !(10 == main_~i~0#1); 39625#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 39626#L18-1 assume !!(main_~i~0#1 > 0); 40497#L12 assume !(1 == main_~i~0#1); 39582#L12-2 assume !(10 == main_~i~0#1); 39314#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 39315#L18-1 assume !!(main_~i~0#1 > 0); 37502#L12 [2024-10-31 21:55:45,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:45,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1568126196, now seen corresponding path program 7 times [2024-10-31 21:55:45,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:45,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12428554] [2024-10-31 21:55:45,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:45,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:45,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:45,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:45,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:45,925 INFO L85 PathProgramCache]: Analyzing trace with hash 537366349, now seen corresponding path program 4 times [2024-10-31 21:55:45,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:45,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673232540] [2024-10-31 21:55:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:45,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:45,936 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:45,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:45,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:55:45,948 INFO L85 PathProgramCache]: Analyzing trace with hash 758614336, now seen corresponding path program 8 times [2024-10-31 21:55:45,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:55:45,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984455275] [2024-10-31 21:55:45,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:55:45,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:55:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:45,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:45,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:55:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:46,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:55:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:55:47,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 09:55:47 BoogieIcfgContainer [2024-10-31 21:55:47,051 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 21:55:47,051 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:55:47,051 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:55:47,052 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:55:47,052 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:55:28" (3/4) ... [2024-10-31 21:55:47,056 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-31 21:55:47,129 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 21:55:47,130 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:55:47,130 INFO L158 Benchmark]: Toolchain (without parser) took 19165.12ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 88.5MB in the beginning and 127.9MB in the end (delta: -39.4MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2024-10-31 21:55:47,131 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 94.4MB. Free memory is still 45.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:55:47,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.20ms. Allocated memory is still 119.5MB. Free memory was 88.5MB in the beginning and 77.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 21:55:47,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.86ms. Allocated memory is still 119.5MB. Free memory was 77.2MB in the beginning and 75.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:55:47,132 INFO L158 Benchmark]: Boogie Preprocessor took 29.39ms. Allocated memory is still 119.5MB. Free memory was 75.9MB in the beginning and 74.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:55:47,132 INFO L158 Benchmark]: RCFGBuilder took 281.75ms. Allocated memory is still 119.5MB. Free memory was 74.2MB in the beginning and 65.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 21:55:47,133 INFO L158 Benchmark]: BuchiAutomizer took 18488.40ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 65.8MB in the beginning and 133.1MB in the end (delta: -67.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:55:47,133 INFO L158 Benchmark]: Witness Printer took 78.41ms. Allocated memory is still 182.5MB. Free memory was 133.1MB in the beginning and 127.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 21:55:47,135 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 94.4MB. Free memory is still 45.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.20ms. Allocated memory is still 119.5MB. Free memory was 88.5MB in the beginning and 77.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.86ms. Allocated memory is still 119.5MB. Free memory was 77.2MB in the beginning and 75.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.39ms. Allocated memory is still 119.5MB. Free memory was 75.9MB in the beginning and 74.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 281.75ms. Allocated memory is still 119.5MB. Free memory was 74.2MB in the beginning and 65.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 18488.40ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 65.8MB in the beginning and 133.1MB in the end (delta: -67.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 78.41ms. Allocated memory is still 182.5MB. Free memory was 133.1MB in the beginning and 127.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 17 terminating modules (9 trivial, 5 deterministic, 3 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function (((long) -2 * i) + 21) and consists of 5 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function (((long) -2 * i) + 9) and consists of 9 locations. One nondeterministic module has affine ranking function (((long) -2 * i) + 5) and consists of 13 locations. 9 modules have a trivial ranking function, the largest among these consists of 11 locations. The remainder module has 3222 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 18.3s and 13 iterations. TraceHistogramMax:19. Analysis of lassos took 10.0s. Construction of modules took 0.9s. Büchi inclusion checks took 6.7s. Highest rank in rank-based complementation 5. Minimization of det autom 2. Minimization of nondet autom 15. Automata minimization 0.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 2653 StatesRemovedByMinimization, 14 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 1, 0, 2]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 570/640 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 426 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 393 mSDsluCounter, 230 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 742 IncrementalHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 203 mSDtfsCounter, 742 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT2 conc0 concLT2 SILN0 SILU0 SILI2 SILT3 lasso1 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax177 hnf100 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf93 smp89 dnf132 smp95 tf108 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 107ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s 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 up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE i > 0 VAL [i=1, up=0] [L12] COND TRUE i == 1 [L13] up = 1 VAL [i=1, up=1] [L15] COND FALSE !(i == 10) VAL [i=1, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=2, up=1] [L11] COND TRUE i > 0 VAL [i=2, up=1] [L12] COND FALSE !(i == 1) VAL [i=2, up=1] [L15] COND FALSE !(i == 10) VAL [i=2, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=3, up=1] [L11] COND TRUE i > 0 VAL [i=3, up=1] [L12] COND FALSE !(i == 1) VAL [i=3, up=1] [L15] COND FALSE !(i == 10) VAL [i=3, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=4, up=1] [L11] COND TRUE i > 0 VAL [i=4, up=1] [L12] COND FALSE !(i == 1) VAL [i=4, up=1] [L15] COND FALSE !(i == 10) VAL [i=4, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=5, up=1] [L11] COND TRUE i > 0 VAL [i=5, up=1] [L12] COND FALSE !(i == 1) VAL [i=5, up=1] [L15] COND FALSE !(i == 10) VAL [i=5, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=6, up=1] [L11] COND TRUE i > 0 VAL [i=6, up=1] [L12] COND FALSE !(i == 1) VAL [i=6, up=1] [L15] COND FALSE !(i == 10) VAL [i=6, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=7, up=1] [L11] COND TRUE i > 0 VAL [i=7, up=1] [L12] COND FALSE !(i == 1) VAL [i=7, up=1] [L15] COND FALSE !(i == 10) VAL [i=7, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=8, up=1] [L11] COND TRUE i > 0 VAL [i=8, up=1] [L12] COND FALSE !(i == 1) VAL [i=8, up=1] [L15] COND FALSE !(i == 10) VAL [i=8, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=9, up=1] [L11] COND TRUE i > 0 VAL [i=9, up=1] [L12] COND FALSE !(i == 1) VAL [i=9, up=1] [L15] COND FALSE !(i == 10) VAL [i=9, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=10, up=1] [L11] COND TRUE i > 0 VAL [i=10, up=1] [L12] COND FALSE !(i == 1) VAL [i=10, up=1] [L15] COND TRUE i == 10 [L16] up = 0 VAL [i=10, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=9, up=0] [L11] COND TRUE i > 0 VAL [i=9, up=0] [L12] COND FALSE !(i == 1) VAL [i=9, up=0] [L15] COND FALSE !(i == 10) VAL [i=9, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=8, up=0] [L11] COND TRUE i > 0 VAL [i=8, up=0] [L12] COND FALSE !(i == 1) VAL [i=8, up=0] [L15] COND FALSE !(i == 10) VAL [i=8, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=7, up=0] [L11] COND TRUE i > 0 VAL [i=7, up=0] [L12] COND FALSE !(i == 1) VAL [i=7, up=0] [L15] COND FALSE !(i == 10) VAL [i=7, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=6, up=0] [L11] COND TRUE i > 0 VAL [i=6, up=0] [L12] COND FALSE !(i == 1) VAL [i=6, up=0] [L15] COND FALSE !(i == 10) VAL [i=6, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=5, up=0] [L11] COND TRUE i > 0 VAL [i=5, up=0] [L12] COND FALSE !(i == 1) VAL [i=5, up=0] [L15] COND FALSE !(i == 10) VAL [i=5, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=4, up=0] [L11] COND TRUE i > 0 VAL [i=4, up=0] [L12] COND FALSE !(i == 1) VAL [i=4, up=0] [L15] COND FALSE !(i == 10) VAL [i=4, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=3, up=0] [L11] COND TRUE i > 0 VAL [i=3, up=0] [L12] COND FALSE !(i == 1) VAL [i=3, up=0] [L15] COND FALSE !(i == 10) VAL [i=3, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=2, up=0] [L11] COND TRUE i > 0 VAL [i=2, up=0] [L12] COND FALSE !(i == 1) VAL [i=2, up=0] [L15] COND FALSE !(i == 10) VAL [i=2, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=1, up=0] [L11] COND TRUE i > 0 VAL [i=1, up=0] Loop: [L12] COND TRUE i == 1 [L13] up = 1 [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND TRUE i == 10 [L16] up = 0 [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 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 up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE i > 0 VAL [i=1, up=0] [L12] COND TRUE i == 1 [L13] up = 1 VAL [i=1, up=1] [L15] COND FALSE !(i == 10) VAL [i=1, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=2, up=1] [L11] COND TRUE i > 0 VAL [i=2, up=1] [L12] COND FALSE !(i == 1) VAL [i=2, up=1] [L15] COND FALSE !(i == 10) VAL [i=2, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=3, up=1] [L11] COND TRUE i > 0 VAL [i=3, up=1] [L12] COND FALSE !(i == 1) VAL [i=3, up=1] [L15] COND FALSE !(i == 10) VAL [i=3, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=4, up=1] [L11] COND TRUE i > 0 VAL [i=4, up=1] [L12] COND FALSE !(i == 1) VAL [i=4, up=1] [L15] COND FALSE !(i == 10) VAL [i=4, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=5, up=1] [L11] COND TRUE i > 0 VAL [i=5, up=1] [L12] COND FALSE !(i == 1) VAL [i=5, up=1] [L15] COND FALSE !(i == 10) VAL [i=5, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=6, up=1] [L11] COND TRUE i > 0 VAL [i=6, up=1] [L12] COND FALSE !(i == 1) VAL [i=6, up=1] [L15] COND FALSE !(i == 10) VAL [i=6, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=7, up=1] [L11] COND TRUE i > 0 VAL [i=7, up=1] [L12] COND FALSE !(i == 1) VAL [i=7, up=1] [L15] COND FALSE !(i == 10) VAL [i=7, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=8, up=1] [L11] COND TRUE i > 0 VAL [i=8, up=1] [L12] COND FALSE !(i == 1) VAL [i=8, up=1] [L15] COND FALSE !(i == 10) VAL [i=8, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=9, up=1] [L11] COND TRUE i > 0 VAL [i=9, up=1] [L12] COND FALSE !(i == 1) VAL [i=9, up=1] [L15] COND FALSE !(i == 10) VAL [i=9, up=1] [L18] COND TRUE up == 1 [L19] i = i+1 VAL [i=10, up=1] [L11] COND TRUE i > 0 VAL [i=10, up=1] [L12] COND FALSE !(i == 1) VAL [i=10, up=1] [L15] COND TRUE i == 10 [L16] up = 0 VAL [i=10, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=9, up=0] [L11] COND TRUE i > 0 VAL [i=9, up=0] [L12] COND FALSE !(i == 1) VAL [i=9, up=0] [L15] COND FALSE !(i == 10) VAL [i=9, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=8, up=0] [L11] COND TRUE i > 0 VAL [i=8, up=0] [L12] COND FALSE !(i == 1) VAL [i=8, up=0] [L15] COND FALSE !(i == 10) VAL [i=8, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=7, up=0] [L11] COND TRUE i > 0 VAL [i=7, up=0] [L12] COND FALSE !(i == 1) VAL [i=7, up=0] [L15] COND FALSE !(i == 10) VAL [i=7, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=6, up=0] [L11] COND TRUE i > 0 VAL [i=6, up=0] [L12] COND FALSE !(i == 1) VAL [i=6, up=0] [L15] COND FALSE !(i == 10) VAL [i=6, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=5, up=0] [L11] COND TRUE i > 0 VAL [i=5, up=0] [L12] COND FALSE !(i == 1) VAL [i=5, up=0] [L15] COND FALSE !(i == 10) VAL [i=5, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=4, up=0] [L11] COND TRUE i > 0 VAL [i=4, up=0] [L12] COND FALSE !(i == 1) VAL [i=4, up=0] [L15] COND FALSE !(i == 10) VAL [i=4, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=3, up=0] [L11] COND TRUE i > 0 VAL [i=3, up=0] [L12] COND FALSE !(i == 1) VAL [i=3, up=0] [L15] COND FALSE !(i == 10) VAL [i=3, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=2, up=0] [L11] COND TRUE i > 0 VAL [i=2, up=0] [L12] COND FALSE !(i == 1) VAL [i=2, up=0] [L15] COND FALSE !(i == 10) VAL [i=2, up=0] [L18] COND FALSE !(up == 1) [L21] i = i-1 VAL [i=1, up=0] [L11] COND TRUE i > 0 VAL [i=1, up=0] Loop: [L12] COND TRUE i == 1 [L13] up = 1 [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND TRUE i == 10 [L16] up = 0 [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 [L12] COND FALSE !(i == 1) [L15] COND FALSE !(i == 10) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE i > 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-31 21:55:47,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-10-31 21:55:47,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:47,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-10-31 21:55:47,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-10-31 21:55:47,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-10-31 21:55:48,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accbe664-c7b6-4658-abe0-d78e7fb4c9d3/bin/uautomizer-verify-4GaUIPS5ZU/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)