./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Ex08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:37,539 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:37,615 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-26 12:00:37,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:37,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:37,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:37,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:37,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:37,648 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:37,649 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:37,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:37,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:37,651 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:37,652 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 12:00:37,653 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 12:00:37,653 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 12:00:37,654 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 12:00:37,655 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 12:00:37,655 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 12:00:37,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:37,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 12:00:37,657 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:37,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:37,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 12:00:37,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 12:00:37,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 12:00:37,660 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:00:37,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:37,662 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 12:00:37,662 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:37,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:37,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:37,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:37,664 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:37,665 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 12:00:37,666 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_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 [2023-11-26 12:00:38,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:38,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:38,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:38,036 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:38,037 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:38,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-restricted-15/Ex08.c [2023-11-26 12:00:41,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:41,384 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:41,385 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/sv-benchmarks/c/termination-restricted-15/Ex08.c [2023-11-26 12:00:41,392 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/data/fdacdabde/2aad0058d1c54477ba1f0e396499cade/FLAG1baa61d4a [2023-11-26 12:00:41,408 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/data/fdacdabde/2aad0058d1c54477ba1f0e396499cade [2023-11-26 12:00:41,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:41,412 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:41,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:41,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:41,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:41,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c76006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41, skipping insertion in model container [2023-11-26 12:00:41,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,443 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:41,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:41,609 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:41,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:41,644 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:41,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41 WrapperNode [2023-11-26 12:00:41,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:41,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:41,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:41,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:41,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,677 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-11-26 12:00:41,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:41,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:41,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:41,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:41,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,693 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,699 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-26 12:00:41,700 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,701 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:41,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:41,714 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:41,714 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:41,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (1/1) ... [2023-11-26 12:00:41,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:41,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:41,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:41,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:41,875 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:41,877 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:41,951 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:41,960 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:41,961 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:00:41,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:41 BoogieIcfgContainer [2023-11-26 12:00:41,962 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:41,963 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 12:00:41,963 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 12:00:41,967 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 12:00:41,968 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:00:41,968 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 12:00:41" (1/3) ... [2023-11-26 12:00:41,969 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d3dc0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:00:41, skipping insertion in model container [2023-11-26 12:00:41,970 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:00:41,970 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:41" (2/3) ... [2023-11-26 12:00:41,970 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d3dc0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:00:41, skipping insertion in model container [2023-11-26 12:00:41,970 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:00:41,971 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:41" (3/3) ... [2023-11-26 12:00:41,972 INFO L332 chiAutomizerObserver]: Analyzing ICFG Ex08.c [2023-11-26 12:00:42,030 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 12:00:42,030 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 12:00:42,030 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 12:00:42,030 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 12:00:42,031 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 12:00:42,031 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 12:00:42,031 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 12:00:42,031 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 12:00:42,036 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) [2023-11-26 12:00:42,056 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 12:00:42,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:42,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:42,063 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:00:42,063 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 12:00:42,063 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 12:00:42,064 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) [2023-11-26 12:00:42,065 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 12:00:42,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:42,066 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:42,066 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:00:42,066 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 12:00:42,075 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4#L18-1true [2023-11-26 12:00:42,075 INFO L750 eck$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 [2023-11-26 12:00:42,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:42,082 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 12:00:42,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:42,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020437010] [2023-11-26 12:00:42,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:42,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:42,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:42,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:42,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:42,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2023-11-26 12:00:42,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:42,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415407486] [2023-11-26 12:00:42,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:42,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:42,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:42,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415407486] [2023-11-26 12:00:42,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415407486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:42,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:42,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:42,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183445079] [2023-11-26 12:00:42,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:42,295 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:00:42,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:42,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:42,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:42,339 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) [2023-11-26 12:00:42,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:42,368 INFO L93 Difference]: Finished difference Result 16 states and 22 transitions. [2023-11-26 12:00:42,369 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2023-11-26 12:00:42,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-26 12:00:42,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 10 states and 15 transitions. [2023-11-26 12:00:42,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-26 12:00:42,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-26 12:00:42,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2023-11-26 12:00:42,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:42,380 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-26 12:00:42,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2023-11-26 12:00:42,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-26 12:00:42,406 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) [2023-11-26 12:00:42,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2023-11-26 12:00:42,409 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-26 12:00:42,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:42,415 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-26 12:00:42,416 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 12:00:42,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2023-11-26 12:00:42,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-26 12:00:42,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:42,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:42,418 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:00:42,419 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 12:00:42,419 INFO L748 eck$LassoCheckResult]: Stem: 40#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 41#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 42#L18-1 [2023-11-26 12:00:42,419 INFO L750 eck$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 [2023-11-26 12:00:42,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:42,420 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-26 12:00:42,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:42,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676077742] [2023-11-26 12:00:42,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:42,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:42,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:42,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:42,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:42,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1265324, now seen corresponding path program 1 times [2023-11-26 12:00:42,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:42,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295901521] [2023-11-26 12:00:42,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:42,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:42,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:42,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:42,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295901521] [2023-11-26 12:00:42,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295901521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:42,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:42,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:42,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302838218] [2023-11-26 12:00:42,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:42,504 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:00:42,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:42,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:42,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:42,505 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) [2023-11-26 12:00:42,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:42,531 INFO L93 Difference]: Finished difference Result 14 states and 21 transitions. [2023-11-26 12:00:42,531 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2023-11-26 12:00:42,532 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-26 12:00:42,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 21 transitions. [2023-11-26 12:00:42,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-11-26 12:00:42,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-26 12:00:42,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2023-11-26 12:00:42,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:00:42,536 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-11-26 12:00:42,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2023-11-26 12:00:42,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-26 12:00:42,538 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) [2023-11-26 12:00:42,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2023-11-26 12:00:42,539 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-11-26 12:00:42,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:42,541 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-11-26 12:00:42,541 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 12:00:42,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2023-11-26 12:00:42,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-26 12:00:42,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:42,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:42,543 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:00:42,543 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 12:00:42,544 INFO L748 eck$LassoCheckResult]: Stem: 69#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 70#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 72#L18-1 [2023-11-26 12:00:42,544 INFO L750 eck$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 [2023-11-26 12:00:42,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:42,545 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-11-26 12:00:42,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:42,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138093129] [2023-11-26 12:00:42,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:42,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:42,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:42,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:42,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:42,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1267246, now seen corresponding path program 1 times [2023-11-26 12:00:42,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:42,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786960480] [2023-11-26 12:00:42,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:42,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:42,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:42,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:42,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:42,571 INFO L85 PathProgramCache]: Analyzing trace with hash 889694448, now seen corresponding path program 1 times [2023-11-26 12:00:42,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:42,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927112518] [2023-11-26 12:00:42,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:42,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:42,580 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:42,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:42,648 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:42,648 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:42,648 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:42,649 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:42,649 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 12:00:42,649 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:42,649 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:42,649 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:42,650 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration3_Loop [2023-11-26 12:00:42,650 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:42,650 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:42,670 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:42,683 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:42,687 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:42,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:42,758 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:42,759 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 12:00:42,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:42,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:42,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:42,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 12:00:42,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:42,797 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:42,824 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:42,824 INFO L440 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: [] [2023-11-26 12:00:42,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:42,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:42,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:42,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:42,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 12:00:42,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:42,845 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:42,864 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:42,864 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 12:00:42,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:42,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:42,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:42,874 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:42,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 12:00:42,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:42,878 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:42,900 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:42,900 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 12:00:42,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:42,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:42,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:42,914 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:42,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 12:00:42,920 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:42,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:42,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:42,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:42,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:42,942 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:42,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 12:00:42,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 12:00:42,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:42,973 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 12:00:42,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:42,985 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:42,985 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:42,985 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:42,985 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:42,985 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:00:42,985 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:42,985 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:42,985 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:42,986 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration3_Loop [2023-11-26 12:00:42,986 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:42,986 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:42,988 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:42,993 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:42,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:43,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:43,060 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:43,065 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:00:43,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:43,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:43,068 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:43,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 12:00:43,084 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:43,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:43,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:43,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:43,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:43,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:43,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:43,130 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:43,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:43,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:43,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:43,140 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:43,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 12:00:43,149 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:43,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:43,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:43,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:43,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:43,164 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:43,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:43,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:43,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:43,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:43,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:43,189 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:43,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:43,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:43,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:43,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:43,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:43,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:43,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:43,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:43,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-26 12:00:43,225 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:00:43,230 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 12:00:43,230 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 12:00:43,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:43,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:43,264 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:43,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-26 12:00:43,266 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:00:43,266 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 12:00:43,266 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:00:43,267 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-26 12:00:43,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-26 12:00:43,276 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 12:00:43,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:43,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:43,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:43,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:43,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:43,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:43,350 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 12:00:43,351 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) [2023-11-26 12:00:43,432 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. [2023-11-26 12:00:43,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:43,436 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) [2023-11-26 12:00:43,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-26 12:00:43,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-26 12:00:43,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:43,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-26 12:00:43,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:43,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-26 12:00:43,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:43,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 51 transitions. [2023-11-26 12:00:43,442 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 20 [2023-11-26 12:00:43,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 30 states and 44 transitions. [2023-11-26 12:00:43,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2023-11-26 12:00:43,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2023-11-26 12:00:43,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 44 transitions. [2023-11-26 12:00:43,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:43,444 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 44 transitions. [2023-11-26 12:00:43,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 44 transitions. [2023-11-26 12:00:43,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2023-11-26 12:00:43,447 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) [2023-11-26 12:00:43,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2023-11-26 12:00:43,451 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2023-11-26 12:00:43,451 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 36 transitions. [2023-11-26 12:00:43,451 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 12:00:43,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 36 transitions. [2023-11-26 12:00:43,453 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2023-11-26 12:00:43,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:43,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:43,453 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-26 12:00:43,454 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 12:00:43,454 INFO L748 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 [2023-11-26 12:00:43,454 INFO L750 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 [2023-11-26 12:00:43,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:43,455 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-26 12:00:43,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:43,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857735013] [2023-11-26 12:00:43,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:43,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:43,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:43,465 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:43,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:43,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1422198, now seen corresponding path program 1 times [2023-11-26 12:00:43,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:43,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195320560] [2023-11-26 12:00:43,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:43,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:43,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:43,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:43,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:43,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1810726045, now seen corresponding path program 1 times [2023-11-26 12:00:43,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:43,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690572100] [2023-11-26 12:00:43,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:43,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:43,484 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:43,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:43,531 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:43,531 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:43,531 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:43,531 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:43,531 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 12:00:43,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:43,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:43,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:43,532 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration4_Loop [2023-11-26 12:00:43,532 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:43,532 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:43,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:43,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:43,547 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:43,551 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:43,671 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:43,672 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 12:00:43,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:43,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:43,676 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:43,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:43,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:43,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-26 12:00:43,732 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:43,733 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 12:00:43,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:43,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:43,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:43,748 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:43,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-26 12:00:43,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:43,755 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:43,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:43,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:43,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:43,786 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:43,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 12:00:43,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:43,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-26 12:00:43,858 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 12:00:43,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:43,861 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:43,861 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:43,862 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:43,862 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:43,862 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:00:43,862 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:43,862 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:43,862 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:43,862 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration4_Loop [2023-11-26 12:00:43,862 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:43,862 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:43,864 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:43,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:43,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:43,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:44,005 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:44,005 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:00:44,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:44,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:44,008 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:44,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:44,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-26 12:00:44,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:44,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:44,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:44,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:44,034 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:44,035 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:44,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:44,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:44,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:44,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:44,064 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:44,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:44,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-26 12:00:44,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:44,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:44,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:44,091 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-26 12:00:44,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:44,094 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-26 12:00:44,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:44,104 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:00:44,108 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 12:00:44,108 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 12:00:44,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:44,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:44,112 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:44,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-26 12:00:44,115 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:00:44,116 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 12:00:44,116 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:00:44,116 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-26 12:00:44,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:44,126 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 12:00:44,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:44,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:44,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:44,157 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:44,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:44,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:44,203 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 12:00:44,203 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) [2023-11-26 12:00:44,237 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. [2023-11-26 12:00:44,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:44,239 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) [2023-11-26 12:00:44,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-26 12:00:44,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-26 12:00:44,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:44,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-26 12:00:44,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:44,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-26 12:00:44,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:44,241 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 59 transitions. [2023-11-26 12:00:44,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-26 12:00:44,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 32 states and 49 transitions. [2023-11-26 12:00:44,246 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-26 12:00:44,246 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-11-26 12:00:44,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 49 transitions. [2023-11-26 12:00:44,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:44,247 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2023-11-26 12:00:44,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 49 transitions. [2023-11-26 12:00:44,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-26 12:00:44,250 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) [2023-11-26 12:00:44,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 49 transitions. [2023-11-26 12:00:44,252 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2023-11-26 12:00:44,252 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 49 transitions. [2023-11-26 12:00:44,252 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-26 12:00:44,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 49 transitions. [2023-11-26 12:00:44,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-26 12:00:44,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:44,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:44,254 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-26 12:00:44,254 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 12:00:44,255 INFO L748 eck$LassoCheckResult]: Stem: 273#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 274#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 277#L18-1 assume !!(main_~i~0#1 > 0); 280#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 281#L12-2 assume !(10 == main_~i~0#1); 287#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 288#L18-1 [2023-11-26 12:00:44,255 INFO L750 eck$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 [2023-11-26 12:00:44,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:44,255 INFO L85 PathProgramCache]: Analyzing trace with hash 889692586, now seen corresponding path program 1 times [2023-11-26 12:00:44,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:44,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027432194] [2023-11-26 12:00:44,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:44,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:44,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:44,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:44,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:44,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1267306, now seen corresponding path program 1 times [2023-11-26 12:00:44,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:44,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020996256] [2023-11-26 12:00:44,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:44,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:44,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:44,278 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:44,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:44,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1068497811, now seen corresponding path program 1 times [2023-11-26 12:00:44,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:44,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91987059] [2023-11-26 12:00:44,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:44,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:44,286 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:44,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:44,326 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:44,326 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:44,326 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:44,326 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:44,326 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 12:00:44,326 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:44,326 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:44,327 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:44,327 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Loop [2023-11-26 12:00:44,327 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:44,327 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:44,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:44,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:44,347 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:44,350 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:44,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:44,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:44,483 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:44,483 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 12:00:44,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:44,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:44,484 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:44,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:44,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:44,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-26 12:00:44,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:44,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:44,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:44,530 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:44,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 12:00:44,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:44,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-26 12:00:44,576 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:44,576 INFO L440 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=0}, {ULTIMATE.start_main_~i~0#1=1}, {ULTIMATE.start_main_~i~0#1=0}] Lambdas: [0, 1, 5] Nus: [0, 1] [2023-11-26 12:00:44,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-26 12:00:44,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:44,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:44,612 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:44,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:44,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:44,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-26 12:00:44,652 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:44,653 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 12:00:44,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:44,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:44,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:44,663 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:44,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-26 12:00:44,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:44,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:44,691 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:44,691 INFO L440 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: [] [2023-11-26 12:00:44,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-26 12:00:44,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:44,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:44,699 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:44,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:44,705 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:44,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-26 12:00:44,729 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:44,729 INFO L440 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: [] [2023-11-26 12:00:44,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:44,772 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:44,773 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:44,773 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:44,773 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:44,773 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 12:00:44,773 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:44,773 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:44,773 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:44,774 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Lasso [2023-11-26 12:00:44,774 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:44,774 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:44,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:44,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:44,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:44,787 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:44,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:44,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:44,929 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:44,929 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 12:00:44,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:44,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:44,942 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:44,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:44,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:44,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-26 12:00:44,972 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:44,972 INFO L440 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: [] [2023-11-26 12:00:44,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:44,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:44,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:44,983 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:44,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:44,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:45,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-26 12:00:45,010 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:45,010 INFO L440 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: [] [2023-11-26 12:00:45,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:45,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:45,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,021 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:45,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:45,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:45,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-26 12:00:45,056 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:45,056 INFO L440 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: [] [2023-11-26 12:00:45,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:45,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:45,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,067 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:45,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:45,071 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:45,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-26 12:00:45,106 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:45,107 INFO L440 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: [] [2023-11-26 12:00:45,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:45,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:45,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,112 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:45,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:45,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:45,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-26 12:00:45,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:45,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:45,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,153 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:45,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 12:00:45,157 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:45,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-26 12:00:45,196 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 12:00:45,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:45,205 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:45,205 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:45,205 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:45,205 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:45,205 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:00:45,205 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:45,206 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:45,206 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:45,206 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration5_Lasso [2023-11-26 12:00:45,206 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:45,206 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:45,208 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:45,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:45,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:45,218 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:45,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:45,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:45,352 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:45,352 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:00:45,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:45,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,353 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:45,361 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:45,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:45,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:45,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:45,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:45,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:45,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:45,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-26 12:00:45,389 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:45,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:45,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:45,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,395 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:45,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:45,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:45,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:45,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:45,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:45,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:45,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:45,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:45,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-26 12:00:45,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:45,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-26 12:00:45,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:45,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,422 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:45,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-26 12:00:45,428 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:45,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:45,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:45,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:45,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:45,440 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:45,441 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:45,464 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:45,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:45,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:45,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,469 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:45,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:45,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:45,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:45,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:45,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:45,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:45,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:45,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:45,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-26 12:00:45,508 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:45,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:45,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:45,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,514 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:45,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:45,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:45,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:45,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:45,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:45,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:45,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:45,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-26 12:00:45,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:45,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:45,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:45,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,581 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:45,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:45,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:45,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:45,598 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-26 12:00:45,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:45,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-26 12:00:45,606 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-11-26 12:00:45,607 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-26 12:00:45,632 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:00:45,669 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2023-11-26 12:00:45,669 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-11-26 12:00:45,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:45,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,670 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:45,677 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:00:45,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-26 12:00:45,708 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2023-11-26 12:00:45,708 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:00:45,708 INFO L515 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] [2023-11-26 12:00:45,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:45,720 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-26 12:00:45,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:45,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:45,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:45,795 WARN L260 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:45,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:45,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:45,840 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 [2023-11-26 12:00:45,840 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) [2023-11-26 12:00:45,917 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. [2023-11-26 12:00:45,918 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 [2023-11-26 12:00:45,919 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) [2023-11-26 12:00:45,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2023-11-26 12:00:45,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-26 12:00:45,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:45,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-26 12:00:45,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:45,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 8 letters. [2023-11-26 12:00:45,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:45,920 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 68 transitions. [2023-11-26 12:00:45,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-26 12:00:45,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 45 states and 67 transitions. [2023-11-26 12:00:45,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-11-26 12:00:45,924 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2023-11-26 12:00:45,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 67 transitions. [2023-11-26 12:00:45,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:45,924 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 67 transitions. [2023-11-26 12:00:45,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 67 transitions. [2023-11-26 12:00:45,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2023-11-26 12:00:45,927 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) [2023-11-26 12:00:45,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 64 transitions. [2023-11-26 12:00:45,929 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 64 transitions. [2023-11-26 12:00:45,929 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 64 transitions. [2023-11-26 12:00:45,929 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-26 12:00:45,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 64 transitions. [2023-11-26 12:00:45,930 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-26 12:00:45,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:45,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:45,931 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:45,931 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 12:00:45,931 INFO L748 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 [2023-11-26 12:00:45,931 INFO L750 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 [2023-11-26 12:00:45,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:45,932 INFO L85 PathProgramCache]: Analyzing trace with hash 588656997, now seen corresponding path program 1 times [2023-11-26 12:00:45,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:45,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146627456] [2023-11-26 12:00:45,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:45,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:45,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:45,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:45,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146627456] [2023-11-26 12:00:45,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146627456] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:45,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287239548] [2023-11-26 12:00:45,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:45,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:45,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:45,987 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:46,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-26 12:00:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:46,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:00:46,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:46,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:46,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:46,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287239548] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:46,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:00:46,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-26 12:00:46,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53514868] [2023-11-26 12:00:46,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:46,057 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:00:46,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:46,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1768756, now seen corresponding path program 2 times [2023-11-26 12:00:46,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:46,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412707186] [2023-11-26 12:00:46,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:46,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:46,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:46,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:46,097 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:46,097 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:46,098 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:46,098 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:46,098 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 12:00:46,098 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:46,098 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:46,098 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:46,098 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration6_Loop [2023-11-26 12:00:46,098 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:46,098 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:46,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,104 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,170 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:46,170 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 12:00:46,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:46,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:46,171 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:46,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-26 12:00:46,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:46,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:46,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:46,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:46,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:46,208 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:46,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-26 12:00:46,211 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 12:00:46,211 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:46,229 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 12:00:46,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:46,232 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:46,232 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:46,232 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:46,232 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:46,232 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:00:46,232 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:46,233 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:46,233 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:46,233 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration6_Loop [2023-11-26 12:00:46,233 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:46,233 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:46,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,311 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:46,311 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:00:46,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:46,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:46,312 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:46,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:46,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:46,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:46,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:46,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:46,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:46,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:46,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:46,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-26 12:00:46,339 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:00:46,342 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 12:00:46,342 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 12:00:46,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:46,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:46,348 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:46,353 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:00:46,353 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 12:00:46,353 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:00:46,353 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-26 12:00:46,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-26 12:00:46,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:46,358 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 12:00:46,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:46,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:46,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:46,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:46,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:46,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:46,433 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 12:00:46,433 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) [2023-11-26 12:00:46,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:46,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:46,485 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. [2023-11-26 12:00:46,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:46,486 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) [2023-11-26 12:00:46,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-26 12:00:46,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-26 12:00:46,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:46,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 4 letters. [2023-11-26 12:00:46,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:46,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 8 letters. [2023-11-26 12:00:46,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:46,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 160 transitions. [2023-11-26 12:00:46,491 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2023-11-26 12:00:46,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 87 states and 133 transitions. [2023-11-26 12:00:46,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2023-11-26 12:00:46,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2023-11-26 12:00:46,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 133 transitions. [2023-11-26 12:00:46,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:46,494 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 133 transitions. [2023-11-26 12:00:46,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 133 transitions. [2023-11-26 12:00:46,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2023-11-26 12:00:46,500 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) [2023-11-26 12:00:46,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 127 transitions. [2023-11-26 12:00:46,502 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 127 transitions. [2023-11-26 12:00:46,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:00:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:46,503 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) [2023-11-26 12:00:46,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:46,547 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2023-11-26 12:00:46,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 239 transitions. [2023-11-26 12:00:46,550 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 52 [2023-11-26 12:00:46,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 239 transitions. [2023-11-26 12:00:46,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2023-11-26 12:00:46,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2023-11-26 12:00:46,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 239 transitions. [2023-11-26 12:00:46,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:46,553 INFO L218 hiAutomatonCegarLoop]: Abstraction has 160 states and 239 transitions. [2023-11-26 12:00:46,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 239 transitions. [2023-11-26 12:00:46,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 136. [2023-11-26 12:00:46,563 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) [2023-11-26 12:00:46,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 207 transitions. [2023-11-26 12:00:46,564 INFO L240 hiAutomatonCegarLoop]: Abstraction has 136 states and 207 transitions. [2023-11-26 12:00:46,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:00:46,566 INFO L428 stractBuchiCegarLoop]: Abstraction has 136 states and 207 transitions. [2023-11-26 12:00:46,566 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-26 12:00:46,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 207 transitions. [2023-11-26 12:00:46,567 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2023-11-26 12:00:46,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:46,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:46,568 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-26 12:00:46,568 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 12:00:46,568 INFO L748 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 [2023-11-26 12:00:46,568 INFO L750 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 [2023-11-26 12:00:46,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:46,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1068495891, now seen corresponding path program 1 times [2023-11-26 12:00:46,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:46,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569223308] [2023-11-26 12:00:46,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:46,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:46,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:46,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569223308] [2023-11-26 12:00:46,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569223308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:46,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:46,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:46,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685735258] [2023-11-26 12:00:46,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:46,610 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:00:46,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:46,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1267308, now seen corresponding path program 2 times [2023-11-26 12:00:46,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:46,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632045277] [2023-11-26 12:00:46,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:46,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:46,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:46,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:46,650 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:46,650 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:46,650 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:46,650 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:46,651 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 12:00:46,651 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:46,651 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:46,651 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:46,651 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration7_Loop [2023-11-26 12:00:46,651 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:46,651 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:46,654 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,760 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:46,760 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 12:00:46,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:46,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:46,762 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:46,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:46,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:46,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-26 12:00:46,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:46,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:46,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:46,801 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:46,804 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 12:00:46,804 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:46,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-26 12:00:46,844 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 12:00:46,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:46,853 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:46,853 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:46,853 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:46,853 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:46,853 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:00:46,853 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:46,853 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:46,853 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:46,853 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration7_Loop [2023-11-26 12:00:46,853 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:46,854 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:46,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:46,947 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:46,947 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:00:46,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:46,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:46,948 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:46,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:46,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:46,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:46,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:46,971 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-26 12:00:46,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:46,972 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-26 12:00:46,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:46,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-26 12:00:46,988 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:00:47,002 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 12:00:47,002 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 12:00:47,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:47,004 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:47,007 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:00:47,008 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 12:00:47,008 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:00:47,008 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-26 12:00:47,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-26 12:00:47,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:47,013 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 12:00:47,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:47,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:47,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:47,065 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:47,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:47,104 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 12:00:47,105 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) [2023-11-26 12:00:47,143 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. [2023-11-26 12:00:47,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:47,146 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) [2023-11-26 12:00:47,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2023-11-26 12:00:47,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-26 12:00:47,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:47,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-26 12:00:47,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:47,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 8 letters. [2023-11-26 12:00:47,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:47,148 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 381 transitions. [2023-11-26 12:00:47,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2023-11-26 12:00:47,154 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 224 states and 333 transitions. [2023-11-26 12:00:47,154 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2023-11-26 12:00:47,154 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 112 [2023-11-26 12:00:47,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 333 transitions. [2023-11-26 12:00:47,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:47,155 INFO L218 hiAutomatonCegarLoop]: Abstraction has 224 states and 333 transitions. [2023-11-26 12:00:47,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 333 transitions. [2023-11-26 12:00:47,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 202. [2023-11-26 12:00:47,165 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) [2023-11-26 12:00:47,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 304 transitions. [2023-11-26 12:00:47,167 INFO L240 hiAutomatonCegarLoop]: Abstraction has 202 states and 304 transitions. [2023-11-26 12:00:47,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:47,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:47,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:47,172 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) [2023-11-26 12:00:47,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:47,195 INFO L93 Difference]: Finished difference Result 230 states and 313 transitions. [2023-11-26 12:00:47,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 230 states and 313 transitions. [2023-11-26 12:00:47,197 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 58 [2023-11-26 12:00:47,200 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 230 states to 230 states and 313 transitions. [2023-11-26 12:00:47,200 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 129 [2023-11-26 12:00:47,200 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2023-11-26 12:00:47,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 230 states and 313 transitions. [2023-11-26 12:00:47,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:47,201 INFO L218 hiAutomatonCegarLoop]: Abstraction has 230 states and 313 transitions. [2023-11-26 12:00:47,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states and 313 transitions. [2023-11-26 12:00:47,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 201. [2023-11-26 12:00:47,221 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) [2023-11-26 12:00:47,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 278 transitions. [2023-11-26 12:00:47,223 INFO L240 hiAutomatonCegarLoop]: Abstraction has 201 states and 278 transitions. [2023-11-26 12:00:47,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:47,229 INFO L428 stractBuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2023-11-26 12:00:47,231 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-26 12:00:47,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 278 transitions. [2023-11-26 12:00:47,232 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 52 [2023-11-26 12:00:47,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:47,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:47,233 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-26 12:00:47,233 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 12:00:47,234 INFO L748 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 [2023-11-26 12:00:47,234 INFO L750 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 [2023-11-26 12:00:47,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:47,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1454758974, now seen corresponding path program 1 times [2023-11-26 12:00:47,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:47,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394615486] [2023-11-26 12:00:47,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:47,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:47,297 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:47,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:47,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394615486] [2023-11-26 12:00:47,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394615486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:47,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:47,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:47,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956315114] [2023-11-26 12:00:47,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:47,299 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:00:47,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:47,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1267308, now seen corresponding path program 3 times [2023-11-26 12:00:47,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:47,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886740863] [2023-11-26 12:00:47,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:47,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:47,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:47,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:47,345 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:47,345 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:47,345 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:47,345 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:47,345 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 12:00:47,346 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,346 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:47,346 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:47,346 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration8_Loop [2023-11-26 12:00:47,346 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:47,346 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:47,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:47,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:47,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:47,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:47,457 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:47,458 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 12:00:47,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:47,463 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:47,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:47,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:47,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-26 12:00:47,496 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:47,496 INFO L440 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: [] [2023-11-26 12:00:47,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:47,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:47,502 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:47,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:47,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:47,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-26 12:00:47,544 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:47,544 INFO L440 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: [] [2023-11-26 12:00:47,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:47,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:47,549 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:47,553 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:47,553 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:47,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-26 12:00:47,575 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:47,575 INFO L440 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: [] [2023-11-26 12:00:47,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:47,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:47,580 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:47,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:47,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:47,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-26 12:00:47,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:47,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:47,617 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:47,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 12:00:47,621 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:47,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-26 12:00:47,647 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 12:00:47,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-26 12:00:47,650 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:47,650 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:47,650 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:47,650 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:47,650 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:00:47,650 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,650 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:47,650 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:47,650 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration8_Loop [2023-11-26 12:00:47,651 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:47,651 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:47,652 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:47,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:47,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:47,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:47,771 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:47,771 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:00:47,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:47,772 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:47,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-26 12:00:47,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:47,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:47,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:47,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:47,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:47,788 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:47,788 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:47,792 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:47,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-26 12:00:47,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:47,795 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:47,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:47,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-26 12:00:47,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:47,808 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:47,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:47,808 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-26 12:00:47,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:47,809 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-26 12:00:47,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:47,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:47,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-11-26 12:00:47,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:47,815 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:47,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-26 12:00:47,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:47,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:47,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:47,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:47,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:47,829 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:47,829 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:47,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:47,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:47,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:47,862 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:47,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:47,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:47,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:47,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:47,881 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-26 12:00:47,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:47,883 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-26 12:00:47,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:47,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-26 12:00:47,904 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:00:47,908 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 12:00:47,908 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 12:00:47,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:47,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:47,909 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:47,913 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:00:47,913 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 12:00:47,914 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:00:47,914 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-26 12:00:47,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-26 12:00:47,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:47,918 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 12:00:47,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:47,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:47,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:47,969 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:47,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:47,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:47,993 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 12:00:47,993 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) [2023-11-26 12:00:48,019 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. [2023-11-26 12:00:48,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:48,020 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) [2023-11-26 12:00:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2023-11-26 12:00:48,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-26 12:00:48,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:48,021 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 12:00:48,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:48,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:48,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:48,077 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:48,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:48,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:48,099 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 12:00:48,100 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) [2023-11-26 12:00:48,126 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. [2023-11-26 12:00:48,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:48,128 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) [2023-11-26 12:00:48,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2023-11-26 12:00:48,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-26 12:00:48,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:48,129 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 12:00:48,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:48,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:48,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:48,170 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:48,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:48,195 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 12:00:48,195 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) [2023-11-26 12:00:48,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:48,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:48,237 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. [2023-11-26 12:00:48,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:48,240 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) [2023-11-26 12:00:48,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2023-11-26 12:00:48,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-26 12:00:48,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:48,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 18 letters. Loop has 4 letters. [2023-11-26 12:00:48,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:48,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 8 letters. [2023-11-26 12:00:48,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:48,247 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 334 states and 496 transitions. [2023-11-26 12:00:48,252 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2023-11-26 12:00:48,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 334 states to 268 states and 378 transitions. [2023-11-26 12:00:48,257 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2023-11-26 12:00:48,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2023-11-26 12:00:48,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 268 states and 378 transitions. [2023-11-26 12:00:48,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:48,259 INFO L218 hiAutomatonCegarLoop]: Abstraction has 268 states and 378 transitions. [2023-11-26 12:00:48,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states and 378 transitions. [2023-11-26 12:00:48,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 167. [2023-11-26 12:00:48,268 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) [2023-11-26 12:00:48,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 234 transitions. [2023-11-26 12:00:48,269 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167 states and 234 transitions. [2023-11-26 12:00:48,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:48,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:48,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:48,271 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) [2023-11-26 12:00:48,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:48,298 INFO L93 Difference]: Finished difference Result 179 states and 246 transitions. [2023-11-26 12:00:48,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 179 states and 246 transitions. [2023-11-26 12:00:48,300 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 92 [2023-11-26 12:00:48,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 179 states to 177 states and 243 transitions. [2023-11-26 12:00:48,302 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2023-11-26 12:00:48,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2023-11-26 12:00:48,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 243 transitions. [2023-11-26 12:00:48,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:48,303 INFO L218 hiAutomatonCegarLoop]: Abstraction has 177 states and 243 transitions. [2023-11-26 12:00:48,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 243 transitions. [2023-11-26 12:00:48,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 170. [2023-11-26 12:00:48,307 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) [2023-11-26 12:00:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 234 transitions. [2023-11-26 12:00:48,308 INFO L240 hiAutomatonCegarLoop]: Abstraction has 170 states and 234 transitions. [2023-11-26 12:00:48,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:48,309 INFO L428 stractBuchiCegarLoop]: Abstraction has 170 states and 234 transitions. [2023-11-26 12:00:48,309 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-26 12:00:48,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 170 states and 234 transitions. [2023-11-26 12:00:48,311 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2023-11-26 12:00:48,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:48,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:48,312 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:48,312 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1] [2023-11-26 12:00:48,312 INFO L748 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 [2023-11-26 12:00:48,312 INFO L750 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 [2023-11-26 12:00:48,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:48,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1068497813, now seen corresponding path program 1 times [2023-11-26 12:00:48,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:48,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157844607] [2023-11-26 12:00:48,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:48,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:48,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:48,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157844607] [2023-11-26 12:00:48,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157844607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:48,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:48,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:48,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500853370] [2023-11-26 12:00:48,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:48,357 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:00:48,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:48,357 INFO L85 PathProgramCache]: Analyzing trace with hash -2142023595, now seen corresponding path program 1 times [2023-11-26 12:00:48,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:48,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746391331] [2023-11-26 12:00:48,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:48,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:48,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:48,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:48,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746391331] [2023-11-26 12:00:48,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746391331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:48,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:48,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:48,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132415080] [2023-11-26 12:00:48,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:48,379 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:00:48,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:48,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:48,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:48,380 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) [2023-11-26 12:00:48,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:48,388 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2023-11-26 12:00:48,388 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 118 transitions. [2023-11-26 12:00:48,389 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2023-11-26 12:00:48,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 84 states and 95 transitions. [2023-11-26 12:00:48,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2023-11-26 12:00:48,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2023-11-26 12:00:48,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84 states and 95 transitions. [2023-11-26 12:00:48,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:48,391 INFO L218 hiAutomatonCegarLoop]: Abstraction has 84 states and 95 transitions. [2023-11-26 12:00:48,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states and 95 transitions. [2023-11-26 12:00:48,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2023-11-26 12:00:48,393 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) [2023-11-26 12:00:48,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2023-11-26 12:00:48,393 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 93 transitions. [2023-11-26 12:00:48,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:48,394 INFO L428 stractBuchiCegarLoop]: Abstraction has 82 states and 93 transitions. [2023-11-26 12:00:48,394 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-26 12:00:48,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 93 transitions. [2023-11-26 12:00:48,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2023-11-26 12:00:48,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:48,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:48,397 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 1, 1, 1, 1] [2023-11-26 12:00:48,397 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 5, 5, 4, 2, 1, 1] [2023-11-26 12:00:48,397 INFO L748 eck$LassoCheckResult]: Stem: 3709#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3710#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3713#L18-1 assume !!(main_~i~0#1 > 0); 3740#L12 assume 1 == main_~i~0#1;main_~up~0#1 := 1; 3734#L12-2 assume !(10 == main_~i~0#1); 3733#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3732#L18-1 assume !!(main_~i~0#1 > 0); 3731#L12 assume !(1 == main_~i~0#1); 3730#L12-2 assume !(10 == main_~i~0#1); 3729#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3728#L18-1 assume !!(main_~i~0#1 > 0); 3727#L12 assume !(1 == main_~i~0#1); 3726#L12-2 assume !(10 == main_~i~0#1); 3725#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3724#L18-1 assume !!(main_~i~0#1 > 0); 3721#L12 assume !(1 == main_~i~0#1); 3723#L12-2 assume !(10 == main_~i~0#1); 3722#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3720#L18-1 assume !!(main_~i~0#1 > 0); 3719#L12 assume !(1 == main_~i~0#1); 3718#L12-2 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 3711#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3707#L18-1 assume !!(main_~i~0#1 > 0); 3708#L12 assume !(1 == main_~i~0#1); 3702#L12-2 assume !(10 == main_~i~0#1); 3704#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 3712#L18-1 assume !!(main_~i~0#1 > 0); 3714#L12 [2023-11-26 12:00:48,397 INFO L750 eck$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 [2023-11-26 12:00:48,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:48,398 INFO L85 PathProgramCache]: Analyzing trace with hash -608617554, now seen corresponding path program 2 times [2023-11-26 12:00:48,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:48,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382020616] [2023-11-26 12:00:48,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:48,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:48,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:48,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382020616] [2023-11-26 12:00:48,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382020616] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:48,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055015649] [2023-11-26 12:00:48,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:00:48,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:48,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:48,480 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:48,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-26 12:00:48,523 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:00:48,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:00:48,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:48,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:48,557 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:48,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:48,626 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:48,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055015649] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:48,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:00:48,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2023-11-26 12:00:48,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413947917] [2023-11-26 12:00:48,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:48,628 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 12:00:48,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:48,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1118663673, now seen corresponding path program 1 times [2023-11-26 12:00:48,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:48,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329487769] [2023-11-26 12:00:48,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:48,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:48,695 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:48,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:48,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329487769] [2023-11-26 12:00:48,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329487769] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:48,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827996747] [2023-11-26 12:00:48,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:48,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:48,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:48,697 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:48,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-26 12:00:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:48,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:48,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:48,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:48,860 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:00:48,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827996747] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:48,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:00:48,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-11-26 12:00:48,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658546977] [2023-11-26 12:00:48,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:48,861 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 12:00:48,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:48,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 12:00:48,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:00:48,862 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) [2023-11-26 12:00:48,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:48,922 INFO L93 Difference]: Finished difference Result 169 states and 180 transitions. [2023-11-26 12:00:48,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 180 transitions. [2023-11-26 12:00:48,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2023-11-26 12:00:48,925 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 149 states and 160 transitions. [2023-11-26 12:00:48,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2023-11-26 12:00:48,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2023-11-26 12:00:48,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 160 transitions. [2023-11-26 12:00:48,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:48,926 INFO L218 hiAutomatonCegarLoop]: Abstraction has 149 states and 160 transitions. [2023-11-26 12:00:48,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 160 transitions. [2023-11-26 12:00:48,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 142. [2023-11-26 12:00:48,929 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) [2023-11-26 12:00:48,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 153 transitions. [2023-11-26 12:00:48,930 INFO L240 hiAutomatonCegarLoop]: Abstraction has 142 states and 153 transitions. [2023-11-26 12:00:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 12:00:48,931 INFO L428 stractBuchiCegarLoop]: Abstraction has 142 states and 153 transitions. [2023-11-26 12:00:48,931 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-26 12:00:48,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 153 transitions. [2023-11-26 12:00:48,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 46 [2023-11-26 12:00:48,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:48,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:48,934 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [12, 10, 10, 9, 2, 1, 1, 1, 1] [2023-11-26 12:00:48,934 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [11, 10, 10, 9, 2, 1, 1] [2023-11-26 12:00:48,935 INFO L748 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 [2023-11-26 12:00:48,935 INFO L750 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 [2023-11-26 12:00:48,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:48,935 INFO L85 PathProgramCache]: Analyzing trace with hash -733322943, now seen corresponding path program 3 times [2023-11-26 12:00:48,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:48,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552537046] [2023-11-26 12:00:48,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:48,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:48,946 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:48,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:48,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:48,956 INFO L85 PathProgramCache]: Analyzing trace with hash 491326234, now seen corresponding path program 2 times [2023-11-26 12:00:48,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:48,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822789470] [2023-11-26 12:00:48,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:48,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:48,972 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:48,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:48,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:48,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1133081510, now seen corresponding path program 4 times [2023-11-26 12:00:48,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:48,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43222566] [2023-11-26 12:00:48,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:48,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:49,107 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 562 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-26 12:00:49,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:49,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43222566] [2023-11-26 12:00:49,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43222566] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:49,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686483460] [2023-11-26 12:00:49,108 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-26 12:00:49,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:49,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:49,110 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:49,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-26 12:00:49,168 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-26 12:00:49,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:00:49,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:00:49,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:49,191 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 562 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-26 12:00:49,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 562 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-11-26 12:00:49,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686483460] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:49,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:00:49,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2023-11-26 12:00:49,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469759327] [2023-11-26 12:00:49,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:49,458 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:49,458 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:49,458 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:49,458 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:49,459 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 12:00:49,459 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:49,459 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:49,459 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:49,459 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration11_Loop [2023-11-26 12:00:49,459 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:49,459 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:49,460 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:49,463 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:49,466 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:49,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:49,511 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:49,512 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 12:00:49,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:49,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:49,516 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:49,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:49,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:49,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-26 12:00:49,552 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:49,552 INFO L440 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: [] [2023-11-26 12:00:49,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:49,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:49,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:49,558 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:49,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:49,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:49,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-26 12:00:49,592 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:49,592 INFO L440 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: [] [2023-11-26 12:00:49,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:49,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:49,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:49,598 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:49,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:49,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:49,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-26 12:00:49,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:49,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:49,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:49,639 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:49,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 12:00:49,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:49,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-26 12:00:49,672 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 12:00:49,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:49,676 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:49,676 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:49,676 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:49,676 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:49,676 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:00:49,676 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:49,676 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:49,676 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:49,676 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration11_Loop [2023-11-26 12:00:49,676 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:49,677 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:49,677 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:49,682 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:49,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:49,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:49,743 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:49,744 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:00:49,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:49,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:49,745 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:49,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:49,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:49,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:49,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:49,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:49,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:49,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:49,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-26 12:00:49,784 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:49,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:49,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:49,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:49,789 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:49,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:49,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:49,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:49,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:49,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:49,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:49,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:49,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-26 12:00:49,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:49,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:49,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:49,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:49,829 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:49,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:49,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:49,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:49,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:49,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:49,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:49,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:49,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:49,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-26 12:00:49,864 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:00:49,877 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 12:00:49,877 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 12:00:49,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:49,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:49,884 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:49,885 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:00:49,885 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 12:00:49,885 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:00:49,886 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 9 Supporting invariants [] [2023-11-26 12:00:49,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-11-26 12:00:49,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:49,890 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 12:00:49,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:49,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:49,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:50,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:50,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-26 12:00:50,141 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 [2023-11-26 12:00:50,141 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) [2023-11-26 12:00:50,194 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. [2023-11-26 12:00:50,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:50,196 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) [2023-11-26 12:00:50,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-26 12:00:50,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-26 12:00:50,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:50,197 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 12:00:50,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:50,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:50,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:50,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:50,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-26 12:00:50,438 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 [2023-11-26 12:00:50,438 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) [2023-11-26 12:00:50,504 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. [2023-11-26 12:00:50,505 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 [2023-11-26 12:00:50,505 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) [2023-11-26 12:00:50,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2023-11-26 12:00:50,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-26 12:00:50,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:50,506 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 12:00:50,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:50,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:50,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:50,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:50,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:50,758 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-26 12:00:50,759 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 [2023-11-26 12:00:50,759 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) [2023-11-26 12:00:50,800 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. [2023-11-26 12:00:50,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:50,801 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) [2023-11-26 12:00:50,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2023-11-26 12:00:50,802 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-26 12:00:50,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:50,804 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 12:00:50,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:50,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:50,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:50,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:50,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:50,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-26 12:00:51,040 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 [2023-11-26 12:00:51,040 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) [2023-11-26 12:00:51,119 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. [2023-11-26 12:00:51,119 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 [2023-11-26 12:00:51,120 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) [2023-11-26 12:00:51,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2023-11-26 12:00:51,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-26 12:00:51,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:51,122 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 12:00:51,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:51,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:51,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:51,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:51,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:51,342 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 11 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-26 12:00:51,343 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 [2023-11-26 12:00:51,344 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) [2023-11-26 12:00:51,573 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 [2023-11-26 12:00:51,574 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 [2023-11-26 12:00:51,574 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) [2023-11-26 12:00:51,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 70 transitions. [2023-11-26 12:00:51,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 47 letters. Loop has 44 letters. [2023-11-26 12:00:51,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:51,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 91 letters. Loop has 44 letters. [2023-11-26 12:00:51,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:51,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 47 letters. Loop has 88 letters. [2023-11-26 12:00:51,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:51,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1899 states and 2480 transitions. [2023-11-26 12:00:51,616 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 96 [2023-11-26 12:00:51,624 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1899 states to 956 states and 1245 transitions. [2023-11-26 12:00:51,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 100 [2023-11-26 12:00:51,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2023-11-26 12:00:51,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 956 states and 1245 transitions. [2023-11-26 12:00:51,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:51,625 INFO L218 hiAutomatonCegarLoop]: Abstraction has 956 states and 1245 transitions. [2023-11-26 12:00:51,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states and 1245 transitions. [2023-11-26 12:00:51,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 564. [2023-11-26 12:00:51,637 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) [2023-11-26 12:00:51,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 787 transitions. [2023-11-26 12:00:51,639 INFO L240 hiAutomatonCegarLoop]: Abstraction has 564 states and 787 transitions. [2023-11-26 12:00:51,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:51,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:00:51,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:51,640 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) [2023-11-26 12:00:51,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:51,687 INFO L93 Difference]: Finished difference Result 692 states and 978 transitions. [2023-11-26 12:00:51,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 692 states and 978 transitions. [2023-11-26 12:00:51,694 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 98 [2023-11-26 12:00:51,700 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 692 states to 675 states and 954 transitions. [2023-11-26 12:00:51,700 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2023-11-26 12:00:51,701 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2023-11-26 12:00:51,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 675 states and 954 transitions. [2023-11-26 12:00:51,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:51,701 INFO L218 hiAutomatonCegarLoop]: Abstraction has 675 states and 954 transitions. [2023-11-26 12:00:51,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states and 954 transitions. [2023-11-26 12:00:51,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 634. [2023-11-26 12:00:51,712 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) [2023-11-26 12:00:51,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 895 transitions. [2023-11-26 12:00:51,714 INFO L240 hiAutomatonCegarLoop]: Abstraction has 634 states and 895 transitions. [2023-11-26 12:00:51,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:00:51,715 INFO L428 stractBuchiCegarLoop]: Abstraction has 634 states and 895 transitions. [2023-11-26 12:00:51,715 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2023-11-26 12:00:51,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 634 states and 895 transitions. [2023-11-26 12:00:51,720 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 90 [2023-11-26 12:00:51,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:51,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:51,722 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [16, 14, 14, 9, 6, 1, 1, 1, 1] [2023-11-26 12:00:51,722 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [15, 14, 14, 9, 6, 1, 1] [2023-11-26 12:00:51,723 INFO L748 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 [2023-11-26 12:00:51,723 INFO L750 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 [2023-11-26 12:00:51,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:51,723 INFO L85 PathProgramCache]: Analyzing trace with hash 912728085, now seen corresponding path program 5 times [2023-11-26 12:00:51,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:51,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204142610] [2023-11-26 12:00:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:51,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:51,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:51,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1190197230, now seen corresponding path program 3 times [2023-11-26 12:00:51,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:51,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847827854] [2023-11-26 12:00:51,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:51,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:51,760 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:51,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:51,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1444454914, now seen corresponding path program 6 times [2023-11-26 12:00:51,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:51,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110229533] [2023-11-26 12:00:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:51,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:51,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 1138 proven. 55 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2023-11-26 12:00:51,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:51,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110229533] [2023-11-26 12:00:51,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110229533] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:51,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431263285] [2023-11-26 12:00:51,966 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-26 12:00:51,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:51,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:51,967 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:52,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-26 12:00:52,055 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 22 check-sat command(s) [2023-11-26 12:00:52,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:00:52,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 12:00:52,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:52,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 1138 proven. 55 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2023-11-26 12:00:52,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:52,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 1138 proven. 55 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2023-11-26 12:00:52,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431263285] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:52,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:00:52,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2023-11-26 12:00:52,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999964200] [2023-11-26 12:00:52,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:52,501 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:52,501 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:52,501 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:52,501 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:52,502 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 12:00:52,502 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:52,502 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:52,502 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:52,502 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration12_Loop [2023-11-26 12:00:52,502 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:52,502 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:52,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:52,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:52,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:52,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:52,549 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:52,550 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 12:00:52,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:52,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:52,551 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:52,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-11-26 12:00:52,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:52,564 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:52,592 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:52,592 INFO L440 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: [] [2023-11-26 12:00:52,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:52,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:52,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:52,598 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:52,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:52,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:52,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-11-26 12:00:52,628 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:00:52,628 INFO L440 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: [] [2023-11-26 12:00:52,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:52,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:52,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:52,633 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:52,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:00:52,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:52,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2023-11-26 12:00:52,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2023-11-26 12:00:52,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:52,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:52,659 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:52,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2023-11-26 12:00:52,661 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 12:00:52,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:00:52,674 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 12:00:52,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2023-11-26 12:00:52,677 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:00:52,677 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:00:52,677 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:00:52,677 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:00:52,677 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:00:52,678 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:52,678 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:00:52,678 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:00:52,678 INFO L133 ssoRankerPreferences]: Filename of dumped script: Ex08.c_Iteration12_Loop [2023-11-26 12:00:52,678 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:00:52,678 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:00:52,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:52,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:52,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:52,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:00:52,745 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:00:52,745 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:00:52,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:52,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:52,747 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:52,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2023-11-26 12:00:52,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:52,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:52,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:52,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:52,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:52,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 12:00:52,762 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 12:00:52,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:52,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:52,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:52,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:52,794 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:52,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:52,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:52,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:52,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:52,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:52,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:52,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:52,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:52,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2023-11-26 12:00:52,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:00:52,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:52,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:52,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:52,831 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:52,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 12:00:52,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:00:52,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:00:52,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:00:52,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:00:52,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:00:52,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:00:52,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:00:52,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2023-11-26 12:00:52,864 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:00:52,866 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 12:00:52,866 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 12:00:52,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:00:52,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:52,872 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:52,876 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:00:52,876 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 12:00:52,876 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:00:52,876 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 5 Supporting invariants [] [2023-11-26 12:00:52,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2023-11-26 12:00:52,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:52,885 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 12:00:52,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:52,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:52,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:53,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 12:00:53,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:53,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:53,324 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-26 12:00:53,325 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 [2023-11-26 12:00:53,325 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) [2023-11-26 12:00:53,375 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. [2023-11-26 12:00:53,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:53,376 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) [2023-11-26 12:00:53,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-26 12:00:53,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-26 12:00:53,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:53,377 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 12:00:53,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:53,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:53,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:53,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 12:00:53,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:53,786 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-26 12:00:53,786 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 [2023-11-26 12:00:53,787 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) [2023-11-26 12:00:53,867 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. [2023-11-26 12:00:53,867 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 [2023-11-26 12:00:53,868 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) [2023-11-26 12:00:53,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2023-11-26 12:00:53,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-26 12:00:53,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:53,869 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 12:00:53,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:53,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:53,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:53,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 12:00:53,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-26 12:00:54,235 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 [2023-11-26 12:00:54,236 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) [2023-11-26 12:00:54,280 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. [2023-11-26 12:00:54,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 12:00:54,281 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) [2023-11-26 12:00:54,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2023-11-26 12:00:54,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-26 12:00:54,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:54,283 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 12:00:54,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:54,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:54,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:54,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 12:00:54,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-26 12:00:54,605 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 [2023-11-26 12:00:54,605 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) [2023-11-26 12:00:54,705 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. [2023-11-26 12:00:54,705 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 [2023-11-26 12:00:54,706 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) [2023-11-26 12:00:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2023-11-26 12:00:54,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-26 12:00:54,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:54,709 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 12:00:54,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:54,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:54,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:54,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 12:00:54,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:55,082 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 59 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-26 12:00:55,083 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 [2023-11-26 12:00:55,083 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) [2023-11-26 12:00:55,824 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 [2023-11-26 12:00:55,825 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 [2023-11-26 12:00:55,825 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) [2023-11-26 12:00:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 110 transitions. [2023-11-26 12:00:55,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 110 transitions. Stem has 63 letters. Loop has 60 letters. [2023-11-26 12:00:55,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:55,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 110 transitions. Stem has 123 letters. Loop has 60 letters. [2023-11-26 12:00:55,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:55,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 110 transitions. Stem has 63 letters. Loop has 120 letters. [2023-11-26 12:00:55,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:00:55,870 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11129 states and 19734 transitions. [2023-11-26 12:00:55,989 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 248 [2023-11-26 12:00:56,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11129 states to 4882 states and 8741 transitions. [2023-11-26 12:00:56,037 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 330 [2023-11-26 12:00:56,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 575 [2023-11-26 12:00:56,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4882 states and 8741 transitions. [2023-11-26 12:00:56,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:56,040 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4882 states and 8741 transitions. [2023-11-26 12:00:56,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4882 states and 8741 transitions. [2023-11-26 12:00:56,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4882 to 3014. [2023-11-26 12:00:56,125 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) [2023-11-26 12:00:56,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3014 states to 3014 states and 5467 transitions. [2023-11-26 12:00:56,136 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3014 states and 5467 transitions. [2023-11-26 12:00:56,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:56,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 12:00:56,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:00:56,137 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) [2023-11-26 12:00:56,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:56,214 INFO L93 Difference]: Finished difference Result 3401 states and 6312 transitions. [2023-11-26 12:00:56,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3401 states and 6312 transitions. [2023-11-26 12:00:56,257 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 168 [2023-11-26 12:00:56,294 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3401 states to 3369 states and 6221 transitions. [2023-11-26 12:00:56,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 238 [2023-11-26 12:00:56,295 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 238 [2023-11-26 12:00:56,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3369 states and 6221 transitions. [2023-11-26 12:00:56,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 12:00:56,296 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3369 states and 6221 transitions. [2023-11-26 12:00:56,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states and 6221 transitions. [2023-11-26 12:00:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3222. [2023-11-26 12:00:56,404 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) [2023-11-26 12:00:56,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 5927 transitions. [2023-11-26 12:00:56,417 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3222 states and 5927 transitions. [2023-11-26 12:00:56,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 12:00:56,420 INFO L428 stractBuchiCegarLoop]: Abstraction has 3222 states and 5927 transitions. [2023-11-26 12:00:56,421 INFO L335 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2023-11-26 12:00:56,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3222 states and 5927 transitions. [2023-11-26 12:00:56,440 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 152 [2023-11-26 12:00:56,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:00:56,441 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:00:56,443 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [19, 17, 17, 9, 9, 1, 1, 1, 1] [2023-11-26 12:00:56,443 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [18, 17, 17, 9, 9, 1, 1] [2023-11-26 12:00:56,444 INFO L748 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 [2023-11-26 12:00:56,444 INFO L750 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 [2023-11-26 12:00:56,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:56,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1568126196, now seen corresponding path program 7 times [2023-11-26 12:00:56,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:56,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341484226] [2023-11-26 12:00:56,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:56,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:56,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:56,470 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:56,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:56,471 INFO L85 PathProgramCache]: Analyzing trace with hash 537366349, now seen corresponding path program 4 times [2023-11-26 12:00:56,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:56,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549797596] [2023-11-26 12:00:56,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:56,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:56,482 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:56,493 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:56,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:56,494 INFO L85 PathProgramCache]: Analyzing trace with hash 758614336, now seen corresponding path program 8 times [2023-11-26 12:00:56,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:56,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526570468] [2023-11-26 12:00:56,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:56,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:56,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:56,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:57,386 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:57,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 12:00:57 BoogieIcfgContainer [2023-11-26 12:00:57,474 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 12:00:57,490 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:00:57,491 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:00:57,491 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:00:57,491 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:41" (3/4) ... [2023-11-26 12:00:57,493 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-26 12:00:57,563 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:00:57,564 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:00:57,564 INFO L158 Benchmark]: Toolchain (without parser) took 16152.29ms. Allocated memory was 134.2MB in the beginning and 243.3MB in the end (delta: 109.1MB). Free memory was 102.0MB in the beginning and 197.4MB in the end (delta: -95.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:57,565 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:57,565 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.77ms. Allocated memory is still 134.2MB. Free memory was 101.6MB in the beginning and 92.1MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 12:00:57,566 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.17ms. Allocated memory is still 134.2MB. Free memory was 92.1MB in the beginning and 90.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:57,566 INFO L158 Benchmark]: Boogie Preprocessor took 33.65ms. Allocated memory is still 134.2MB. Free memory was 90.9MB in the beginning and 89.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:57,566 INFO L158 Benchmark]: RCFGBuilder took 249.31ms. Allocated memory is still 134.2MB. Free memory was 89.5MB in the beginning and 81.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 12:00:57,567 INFO L158 Benchmark]: BuchiAutomizer took 15510.36ms. Allocated memory was 134.2MB in the beginning and 243.3MB in the end (delta: 109.1MB). Free memory was 80.6MB in the beginning and 67.0MB in the end (delta: 13.6MB). Peak memory consumption was 124.6MB. Max. memory is 16.1GB. [2023-11-26 12:00:57,567 INFO L158 Benchmark]: Witness Printer took 73.33ms. Allocated memory is still 243.3MB. Free memory was 201.6MB in the beginning and 197.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:57,569 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.77ms. Allocated memory is still 134.2MB. Free memory was 101.6MB in the beginning and 92.1MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.17ms. Allocated memory is still 134.2MB. Free memory was 92.1MB in the beginning and 90.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.65ms. Allocated memory is still 134.2MB. Free memory was 90.9MB in the beginning and 89.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 249.31ms. Allocated memory is still 134.2MB. Free memory was 89.5MB in the beginning and 81.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 15510.36ms. Allocated memory was 134.2MB in the beginning and 243.3MB in the end (delta: 109.1MB). Free memory was 80.6MB in the beginning and 67.0MB in the end (delta: 13.6MB). Peak memory consumption was 124.6MB. Max. memory is 16.1GB. * Witness Printer took 73.33ms. Allocated memory is still 243.3MB. Free memory was 201.6MB in the beginning and 197.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 ((-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 ((-2 * i) + 9) and consists of 9 locations. One nondeterministic module has affine ranking function ((-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 15.3s and 13 iterations. TraceHistogramMax:19. Analysis of lassos took 8.3s. Construction of modules took 0.6s. Büchi inclusion checks took 5.8s. Highest rank in rank-based complementation 5. Minimization of det autom 2. Minimization of nondet autom 15. Automata minimization 0.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 2653 StatesRemovedByMinimization, 14 NontrivialMinimizations. Non-live state removal took 0.3s 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, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 393 mSDsluCounter, 230 SdHoareTripleChecker+Invalid, 0.7s 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: 127ms 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! [2023-11-26 12:00:57,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:57,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:58,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-26 12:00:58,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-26 12:00:58,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-26 12:00:58,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e934f743-9697-4c45-a569-a422ce5bda46/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)