./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaA1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaA1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ab6c18b18e668cddc67355c8fe64fffbf634b674076a13c061b751962efeb393 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:28:05,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:28:05,901 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:28:05,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:28:05,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:28:05,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:28:05,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:28:05,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:28:05,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:28:05,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:28:05,939 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:28:05,940 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:28:05,941 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:28:05,941 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:28:05,942 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:28:05,942 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:28:05,943 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:28:05,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:28:05,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:28:05,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:28:05,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:28:05,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:28:05,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:28:05,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:28:05,947 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:28:05,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:28:05,948 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:28:05,949 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:28:05,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:28:05,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:28:05,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:28:05,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:28:05,951 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:28:05,952 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_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab6c18b18e668cddc67355c8fe64fffbf634b674076a13c061b751962efeb393 [2023-11-06 22:28:06,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:28:06,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:28:06,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:28:06,264 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:28:06,265 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:28:06,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-restricted-15/PastaA1.c [2023-11-06 22:28:09,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:28:09,760 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:28:09,761 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/sv-benchmarks/c/termination-restricted-15/PastaA1.c [2023-11-06 22:28:09,778 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/data/d72ea2f00/b802b2c3c4d648478214fb33df7e6c7e/FLAG4f8f190e6 [2023-11-06 22:28:10,134 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/data/d72ea2f00/b802b2c3c4d648478214fb33df7e6c7e [2023-11-06 22:28:10,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:28:10,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:28:10,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:28:10,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:28:10,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:28:10,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f00c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10, skipping insertion in model container [2023-11-06 22:28:10,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,201 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:28:10,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:28:10,360 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:28:10,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:28:10,387 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:28:10,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10 WrapperNode [2023-11-06 22:28:10,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:28:10,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:28:10,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:28:10,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:28:10,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,417 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-11-06 22:28:10,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:28:10,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:28:10,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:28:10,419 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:28:10,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,436 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:28:10,439 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:28:10,439 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:28:10,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:28:10,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10" (1/1) ... [2023-11-06 22:28:10,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:10,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:10,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:10,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:28:10,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:28:10,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:28:10,596 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:28:10,599 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:28:10,665 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:28:10,672 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:28:10,672 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:28:10,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:28:10 BoogieIcfgContainer [2023-11-06 22:28:10,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:28:10,676 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:28:10,676 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:28:10,680 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:28:10,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:28:10,681 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:28:10" (1/3) ... [2023-11-06 22:28:10,682 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45a653f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:28:10, skipping insertion in model container [2023-11-06 22:28:10,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:28:10,683 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:28:10" (2/3) ... [2023-11-06 22:28:10,683 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45a653f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:28:10, skipping insertion in model container [2023-11-06 22:28:10,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:28:10,684 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:28:10" (3/3) ... [2023-11-06 22:28:10,685 INFO L332 chiAutomizerObserver]: Analyzing ICFG PastaA1.c [2023-11-06 22:28:10,739 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:28:10,739 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:28:10,739 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:28:10,740 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:28:10,740 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:28:10,740 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:28:10,740 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:28:10,740 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:28:10,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2023-11-06 22:28:10,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:28:10,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:28:10,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:28:10,764 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:28:10,764 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:28:10,764 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:28:10,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2023-11-06 22:28:10,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:28:10,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:28:10,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:28:10,766 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:28:10,766 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:28:10,773 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 4#L10-2true [2023-11-06 22:28:10,773 INFO L750 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~x~0#1 > 0);main_~y~0#1 := 0; 2#L12-2true assume !(main_~y~0#1 < main_~x~0#1); 5#L12-3true main_~x~0#1 := main_~x~0#1 - 1; 4#L10-2true [2023-11-06 22:28:10,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:10,779 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:28:10,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:10,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035783156] [2023-11-06 22:28:10,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:10,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:10,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:28:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:10,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:28:10,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:10,886 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2023-11-06 22:28:10,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:10,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492615269] [2023-11-06 22:28:10,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:10,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:10,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:28:10,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:10,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492615269] [2023-11-06 22:28:10,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492615269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:10,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:10,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:28:10,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281853206] [2023-11-06 22:28:10,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:10,970 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:28:10,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:11,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:28:11,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:28:11,006 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:11,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:11,028 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2023-11-06 22:28:11,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2023-11-06 22:28:11,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:28:11,034 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2023-11-06 22:28:11,035 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-06 22:28:11,035 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-06 22:28:11,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2023-11-06 22:28:11,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:11,036 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-06 22:28:11,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2023-11-06 22:28:11,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-11-06 22:28:11,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:11,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2023-11-06 22:28:11,062 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-06 22:28:11,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:28:11,068 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2023-11-06 22:28:11,069 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:28:11,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2023-11-06 22:28:11,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:28:11,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:28:11,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:28:11,070 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:28:11,070 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:28:11,071 INFO L748 eck$LassoCheckResult]: Stem: 32#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 33#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 30#L10-2 [2023-11-06 22:28:11,071 INFO L750 eck$LassoCheckResult]: Loop: 30#L10-2 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 0; 28#L12-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 1 + main_~y~0#1; 29#L12-2 assume !(main_~y~0#1 < main_~x~0#1); 31#L12-3 main_~x~0#1 := main_~x~0#1 - 1; 30#L10-2 [2023-11-06 22:28:11,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:11,072 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-06 22:28:11,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:11,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143244196] [2023-11-06 22:28:11,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:11,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:11,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:28:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:11,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:28:11,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:11,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1271024, now seen corresponding path program 1 times [2023-11-06 22:28:11,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:11,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985594199] [2023-11-06 22:28:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:11,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:11,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:28:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:11,101 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:28:11,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:11,102 INFO L85 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2023-11-06 22:28:11,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:11,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861265250] [2023-11-06 22:28:11,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:11,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:11,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:28:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:11,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:28:11,221 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:28:11,221 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:28:11,222 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:28:11,222 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:28:11,222 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:28:11,222 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:11,222 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:28:11,222 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:28:11,223 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2023-11-06 22:28:11,223 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:28:11,223 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:28:11,242 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:11,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:11,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:11,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:11,339 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:28:11,340 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:28:11,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:11,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:11,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:11,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:28:11,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:28:11,369 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:28:11,407 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:28:11,407 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:28:11,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:11,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:11,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:11,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:11,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:28:11,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:28:11,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:28:11,469 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:28:11,469 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:28:11,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:11,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:11,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:11,476 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:11,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:28:11,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:28:11,481 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:28:11,497 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:28:11,497 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:28:11,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:11,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:11,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:11,512 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:11,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:28:11,521 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:28:11,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:28:11,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:11,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:11,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:11,562 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:11,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:28:11,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:28:11,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:28:11,603 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:28:11,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:11,608 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:28:11,608 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:28:11,608 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:28:11,608 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:28:11,608 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:28:11,608 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:11,608 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:28:11,609 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:28:11,609 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2023-11-06 22:28:11,609 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:28:11,609 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:28:11,611 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:11,619 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:11,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:11,640 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:11,714 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:28:11,718 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:28:11,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:11,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:11,721 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:11,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:28:11,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:28:11,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:28:11,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:28:11,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:28:11,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:28:11,752 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:28:11,752 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:28:11,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:28:11,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:11,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:11,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:11,783 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:11,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:28:11,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:28:11,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:28:11,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:28:11,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:28:11,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:28:11,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:28:11,811 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:28:11,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:28:11,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:11,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:11,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:11,853 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:11,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:28:11,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:28:11,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:28:11,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:28:11,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:28:11,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:28:11,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:28:11,879 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:28:11,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:28:11,890 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:28:11,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-06 22:28:11,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:11,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:11,898 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:11,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:28:11,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:28:11,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:28:11,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:28:11,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:28:11,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:28:11,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:28:11,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:28:11,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:28:11,948 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:28:11,952 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:28:11,952 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:28:11,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:11,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:11,984 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:11,989 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:28:11,989 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:28:11,989 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:28:11,989 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-06 22:28:11,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:28:11,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:11,997 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:28:12,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:12,025 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:28:12,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:12,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:28:12,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:28:12,077 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:28:12,078 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:12,118 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 4 states. [2023-11-06 22:28:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:28:12,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:12,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-06 22:28:12,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-06 22:28:12,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:28:12,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-06 22:28:12,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:28:12,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-06 22:28:12,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:28:12,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2023-11-06 22:28:12,125 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:28:12,126 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 12 transitions. [2023-11-06 22:28:12,126 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-06 22:28:12,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-06 22:28:12,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-11-06 22:28:12,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:28:12,126 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-06 22:28:12,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-11-06 22:28:12,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-06 22:28:12,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:12,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-06 22:28:12,128 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-06 22:28:12,129 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-06 22:28:12,129 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:28:12,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-11-06 22:28:12,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:28:12,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:28:12,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:28:12,130 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:28:12,130 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:28:12,131 INFO L748 eck$LassoCheckResult]: Stem: 87#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 88#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 84#L10-2 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 0; 81#L12-2 [2023-11-06 22:28:12,131 INFO L750 eck$LassoCheckResult]: Loop: 81#L12-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 1 + main_~y~0#1; 81#L12-2 [2023-11-06 22:28:12,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:12,131 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-06 22:28:12,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:12,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946209268] [2023-11-06 22:28:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:12,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:12,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:28:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:12,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:28:12,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:12,141 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-11-06 22:28:12,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:12,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010131075] [2023-11-06 22:28:12,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:12,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:12,146 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:28:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:12,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:28:12,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:12,151 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2023-11-06 22:28:12,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:12,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358098225] [2023-11-06 22:28:12,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:12,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:12,157 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:28:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:12,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:28:12,179 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:28:12,179 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:28:12,180 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:28:12,180 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:28:12,180 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:28:12,180 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:12,180 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:28:12,180 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:28:12,180 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2023-11-06 22:28:12,181 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:28:12,181 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:28:12,182 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:12,186 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:12,189 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:12,230 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:28:12,230 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:28:12,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:12,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:12,232 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:12,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:28:12,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:28:12,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:28:12,262 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:28:12,262 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:28:12,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:12,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:12,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:12,267 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:12,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:28:12,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:28:12,270 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:28:12,307 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:28:12,307 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:28:12,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:12,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:12,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:12,317 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:12,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:28:12,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:28:12,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:28:12,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:12,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:12,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:12,352 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:12,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:28:12,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:28:12,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:28:12,502 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:28:12,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:12,508 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:28:12,508 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:28:12,508 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:28:12,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:28:12,508 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:28:12,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:12,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:28:12,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:28:12,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2023-11-06 22:28:12,509 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:28:12,509 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:28:12,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:12,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:12,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:12,564 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:28:12,564 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:28:12,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:12,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:12,565 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:12,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:28:12,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:28:12,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:28:12,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:28:12,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:28:12,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:28:12,593 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:28:12,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:28:12,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:28:12,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:12,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:12,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:12,614 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:12,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:28:12,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:28:12,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:28:12,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:28:12,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:28:12,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:28:12,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:28:12,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:28:12,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:28:12,659 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:28:12,679 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:28:12,679 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:28:12,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:12,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:12,683 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:12,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:28:12,701 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:28:12,701 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:28:12,702 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:28:12,702 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-06 22:28:12,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:12,707 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:28:12,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:12,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:28:12,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:12,741 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:28:12,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:12,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:28:12,742 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-06 22:28:12,743 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:12,758 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 5 states. [2023-11-06 22:28:12,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:28:12,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:12,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-06 22:28:12,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-06 22:28:12,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:28:12,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-06 22:28:12,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:28:12,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-06 22:28:12,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:28:12,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2023-11-06 22:28:12,763 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:28:12,763 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2023-11-06 22:28:12,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-06 22:28:12,764 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-11-06 22:28:12,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2023-11-06 22:28:12,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:28:12,764 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-06 22:28:12,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2023-11-06 22:28:12,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2023-11-06 22:28:12,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:12,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-11-06 22:28:12,766 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-06 22:28:12,766 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-06 22:28:12,766 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:28:12,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2023-11-06 22:28:12,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:28:12,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:28:12,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:28:12,768 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2023-11-06 22:28:12,768 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:28:12,768 INFO L748 eck$LassoCheckResult]: Stem: 142#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 143#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 139#L10-2 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 0; 137#L12-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 1 + main_~y~0#1; 138#L12-2 assume !(main_~y~0#1 < main_~x~0#1); 141#L12-3 main_~x~0#1 := main_~x~0#1 - 1; 140#L10-2 assume !!(main_~x~0#1 > 0);main_~y~0#1 := 0; 136#L12-2 [2023-11-06 22:28:12,768 INFO L750 eck$LassoCheckResult]: Loop: 136#L12-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 1 + main_~y~0#1; 136#L12-2 [2023-11-06 22:28:12,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:12,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 2 times [2023-11-06 22:28:12,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:12,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509670820] [2023-11-06 22:28:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:12,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:28:12,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:12,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509670820] [2023-11-06 22:28:12,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509670820] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:28:12,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734415197] [2023-11-06 22:28:12,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:28:12,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:28:12,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:12,833 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:28:12,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-06 22:28:12,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:28:12,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:28:12,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:28:12,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:12,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:28:12,918 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:28:12,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:28:12,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734415197] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:28:12,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:28:12,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-11-06 22:28:12,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884291150] [2023-11-06 22:28:12,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:28:12,947 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:28:12,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:12,947 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2023-11-06 22:28:12,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:12,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310288512] [2023-11-06 22:28:12,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:12,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:12,955 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:28:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:28:12,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:28:12,993 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:28:12,993 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:28:12,993 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:28:12,993 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:28:12,993 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:28:12,993 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:12,993 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:28:12,994 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:28:12,994 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2023-11-06 22:28:12,994 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:28:12,994 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:28:12,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:12,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:13,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:13,040 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:28:13,040 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:28:13,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:13,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:13,048 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:13,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:28:13,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:28:13,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 22:28:13,081 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:28:13,081 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:28:13,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:13,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:13,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:13,090 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:13,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 22:28:13,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:28:13,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:28:13,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:13,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:13,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:13,129 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:13,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:28:13,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:28:13,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 22:28:13,296 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:28:13,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:13,300 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:28:13,300 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:28:13,300 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:28:13,300 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:28:13,300 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:28:13,300 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:13,300 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:28:13,300 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:28:13,301 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2023-11-06 22:28:13,301 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:28:13,301 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:28:13,302 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:13,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:13,324 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:28:13,383 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:28:13,383 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:28:13,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:13,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:13,386 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:13,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:28:13,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-06 22:28:13,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:28:13,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:28:13,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:28:13,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:28:13,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:28:13,422 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:28:13,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:28:13,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:13,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:13,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:13,450 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:13,456 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:28:13,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-06 22:28:13,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:28:13,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:28:13,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:28:13,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:28:13,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:28:13,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:28:13,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:28:13,481 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:28:13,485 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:28:13,485 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:28:13,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:28:13,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:28:13,490 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:28:13,492 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:28:13,492 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:28:13,492 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:28:13,493 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-06 22:28:13,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-06 22:28:13,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:13,504 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:28:13,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:13,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:28:13,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:13,564 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:28:13,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:13,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:28:13,565 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-06 22:28:13,566 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:13,589 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 18 transitions. Complement of second has 5 states. [2023-11-06 22:28:13,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:28:13,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-06 22:28:13,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-06 22:28:13,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:28:13,594 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:28:13,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:13,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:28:13,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:13,635 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:28:13,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:28:13,636 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-06 22:28:13,637 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:13,656 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 18 transitions. Complement of second has 5 states. [2023-11-06 22:28:13,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:28:13,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:13,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-06 22:28:13,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-06 22:28:13,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:28:13,660 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:28:13,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:13,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:28:13,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:13,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:13,741 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:28:13,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:28:13,746 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-06 22:28:13,746 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:13,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:13,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:13,767 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 13 transitions. Complement of second has 4 states. [2023-11-06 22:28:13,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:28:13,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:13,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-11-06 22:28:13,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-06 22:28:13,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:28:13,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 1 letters. [2023-11-06 22:28:13,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:28:13,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-06 22:28:13,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:28:13,771 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2023-11-06 22:28:13,772 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:28:13,772 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2023-11-06 22:28:13,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:28:13,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:28:13,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:28:13,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:13,773 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:28:13,773 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:28:13,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:13,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:28:13,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:28:13,774 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:28:13,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:13,775 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-06 22:28:13,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-06 22:28:13,775 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:28:13,775 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:28:13,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:28:13,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:28:13,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:28:13,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:13,776 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:28:13,776 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:28:13,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:28:13,777 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:28:13,777 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:28:13,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:28:13,778 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:28:13,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:28:13,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:28:13 BoogieIcfgContainer [2023-11-06 22:28:13,787 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:28:13,788 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:28:13,788 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:28:13,788 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:28:13,789 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:28:10" (3/4) ... [2023-11-06 22:28:13,791 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:28:13,792 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:28:13,799 INFO L158 Benchmark]: Toolchain (without parser) took 3646.86ms. Allocated memory is still 209.7MB. Free memory was 174.2MB in the beginning and 170.3MB in the end (delta: 3.8MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-11-06 22:28:13,802 INFO L158 Benchmark]: CDTParser took 0.94ms. Allocated memory is still 130.0MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:28:13,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.04ms. Allocated memory is still 209.7MB. Free memory was 174.0MB in the beginning and 164.8MB in the end (delta: 9.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:28:13,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.03ms. Allocated memory is still 209.7MB. Free memory was 164.8MB in the beginning and 163.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:28:13,803 INFO L158 Benchmark]: Boogie Preprocessor took 19.75ms. Allocated memory is still 209.7MB. Free memory was 163.5MB in the beginning and 162.5MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:28:13,804 INFO L158 Benchmark]: RCFGBuilder took 235.89ms. Allocated memory is still 209.7MB. Free memory was 162.5MB in the beginning and 154.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:28:13,804 INFO L158 Benchmark]: BuchiAutomizer took 3111.82ms. Allocated memory is still 209.7MB. Free memory was 153.8MB in the beginning and 170.3MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:28:13,804 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 209.7MB. Free memory is still 170.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:28:13,806 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94ms. Allocated memory is still 130.0MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.04ms. Allocated memory is still 209.7MB. Free memory was 174.0MB in the beginning and 164.8MB in the end (delta: 9.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.03ms. Allocated memory is still 209.7MB. Free memory was 164.8MB in the beginning and 163.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.75ms. Allocated memory is still 209.7MB. Free memory was 163.5MB in the beginning and 162.5MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 235.89ms. Allocated memory is still 209.7MB. Free memory was 162.5MB in the beginning and 154.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3111.82ms. Allocated memory is still 209.7MB. Free memory was 153.8MB in the beginning and 170.3MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 209.7MB. Free memory is still 170.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function ((-1 * y) + x) and consists of 3 locations. One nondeterministic module has affine ranking function ((-1 * y) + x) and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 26 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax203 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf92 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-06 22:28:13,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:28:14,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03c43a40-5679-4443-b918-a890456b09f2/bin/uautomizer-verify-WvqO1wxjHP/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 Result: TRUE