./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-01.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_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/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_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/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_0d639095-a4d5-448e-90a7-a5134a459b71/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 7f247e4473503f47ee3194e296d6b905e51586799395e11124f119da43a61cc2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:39:47,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:39:48,060 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:39:48,064 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:39:48,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:39:48,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:39:48,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:39:48,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:39:48,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:39:48,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:39:48,100 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:39:48,100 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:39:48,101 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:39:48,101 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:39:48,102 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:39:48,102 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:39:48,103 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:39:48,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:39:48,104 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:39:48,105 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:39:48,105 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:39:48,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:39:48,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:39:48,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:39:48,114 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:39:48,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:39:48,115 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:39:48,116 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:39:48,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:39:48,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:39:48,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:39:48,119 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:39:48,121 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:39:48,122 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_0d639095-a4d5-448e-90a7-a5134a459b71/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f247e4473503f47ee3194e296d6b905e51586799395e11124f119da43a61cc2 [2023-11-06 22:39:48,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:39:48,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:39:48,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:39:48,442 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:39:48,443 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:39:48,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-bwb/or-01.c [2023-11-06 22:39:51,558 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:39:51,741 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:39:51,742 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/sv-benchmarks/c/termination-bwb/or-01.c [2023-11-06 22:39:51,752 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/data/678c17ed8/5db4e1a79f59455cad07b6786e4effac/FLAG9abd26f54 [2023-11-06 22:39:51,768 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/data/678c17ed8/5db4e1a79f59455cad07b6786e4effac [2023-11-06 22:39:51,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:39:51,772 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:39:51,773 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:39:51,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:39:51,779 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:39:51,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:39:51" (1/1) ... [2023-11-06 22:39:51,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e60565d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:51, skipping insertion in model container [2023-11-06 22:39:51,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:39:51" (1/1) ... [2023-11-06 22:39:51,801 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:39:51,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:39:51,973 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:39:51,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:39:52,005 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:39:52,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52 WrapperNode [2023-11-06 22:39:52,006 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:39:52,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:39:52,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:39:52,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:39:52,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2023-11-06 22:39:52,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2023-11-06 22:39:52,042 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-11-06 22:39:52,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:39:52,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:39:52,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:39:52,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:39:52,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2023-11-06 22:39:52,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2023-11-06 22:39:52,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2023-11-06 22:39:52,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2023-11-06 22:39:52,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2023-11-06 22:39:52,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2023-11-06 22:39:52,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2023-11-06 22:39:52,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2023-11-06 22:39:52,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:39:52,071 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:39:52,071 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:39:52,071 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:39:52,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (1/1) ... [2023-11-06 22:39:52,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:52,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:52,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:52,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:39:52,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:39:52,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:39:52,218 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:39:52,220 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:39:52,335 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:39:52,341 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:39:52,341 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:39:52,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:52 BoogieIcfgContainer [2023-11-06 22:39:52,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:39:52,345 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:39:52,345 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:39:52,350 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:39:52,350 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:39:52,351 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:39:51" (1/3) ... [2023-11-06 22:39:52,352 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5039e5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:39:52, skipping insertion in model container [2023-11-06 22:39:52,352 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:39:52,352 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:52" (2/3) ... [2023-11-06 22:39:52,353 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5039e5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:39:52, skipping insertion in model container [2023-11-06 22:39:52,353 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:39:52,353 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:52" (3/3) ... [2023-11-06 22:39:52,355 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-01.c [2023-11-06 22:39:52,417 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:39:52,417 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:39:52,418 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:39:52,418 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:39:52,418 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:39:52,418 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:39:52,420 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:39:52,421 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:39:52,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:39:52,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:39:52,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:39:52,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:39:52,458 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:39:52,458 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:39:52,458 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:39:52,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:39:52,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:39:52,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:39:52,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:39:52,463 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:39:52,464 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:39:52,472 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 5#L20-2true [2023-11-06 22:39:52,473 INFO L750 eck$LassoCheckResult]: Loop: 5#L20-2true assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 3#L22true assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 8#L22-4true main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 5#L20-2true [2023-11-06 22:39:52,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:39:52,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:52,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855435531] [2023-11-06 22:39:52,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:52,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:52,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:39:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:52,597 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:39:52,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:52,602 INFO L85 PathProgramCache]: Analyzing trace with hash 40819, now seen corresponding path program 1 times [2023-11-06 22:39:52,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:52,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627643323] [2023-11-06 22:39:52,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:52,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:52,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:39:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:52,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:39:52,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:52,664 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2023-11-06 22:39:52,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:52,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914551637] [2023-11-06 22:39:52,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:52,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:39:52,926 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 22:39:52,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:39:52,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914551637] [2023-11-06 22:39:52,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914551637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:39:52,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:39:52,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:39:52,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968645708] [2023-11-06 22:39:52,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:39:53,085 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:39:53,086 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:39:53,087 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:39:53,087 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:39:53,088 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:39:53,088 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:53,088 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:39:53,088 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:39:53,089 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration1_Loop [2023-11-06 22:39:53,089 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:39:53,089 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:39:53,111 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 22:39:53,165 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 22:39:53,205 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 22:39:53,373 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:39:53,374 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:39:53,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:53,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:53,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:53,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:39:53,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:39:53,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:39:53,424 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:39:53,424 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:39:53,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-06 22:39:53,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:53,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:53,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:53,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:39:53,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:39:53,441 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:39:53,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:53,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:53,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:53,481 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:53,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:39:53,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:39:53,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:39:53,817 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:39:53,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:53,822 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:39:53,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:39:53,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:39:53,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:39:53,822 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:39:53,822 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:53,822 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:39:53,822 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:39:53,823 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration1_Loop [2023-11-06 22:39:53,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:39:53,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:39:53,825 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 22:39:53,829 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:39:53,846 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 22:39:53,948 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:39:53,952 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:39:53,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:53,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:53,956 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:53,972 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 22:39:53,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:39:53,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:39:53,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:39:53,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:39:53,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:39:53,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:39:53,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:39:53,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:39:54,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:39:54,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:54,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:54,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:54,016 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:54,024 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 22:39:54,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:39:54,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:39:54,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:39:54,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:39:54,039 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:39:54,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:39:54,049 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:39:54,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:39:54,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:39:54,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:54,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:54,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:54,073 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:54,085 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 22:39:54,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:39:54,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:39:54,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:39:54,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:39:54,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:39:54,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:39:54,101 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:39:54,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:39:54,110 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:39:54,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:54,125 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-06 22:39:54,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:54,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:54,127 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:54,141 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 22:39:54,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:39:54,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:39:54,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:39:54,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:39:54,154 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-06 22:39:54,155 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-06 22:39:54,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:39:54,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:39:54,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:39:54,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:54,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:54,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:54,178 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:54,186 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 22:39:54,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:39:54,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:39:54,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:39:54,200 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:39:54,200 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-06 22:39:54,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:39:54,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:39:54,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:39:54,235 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:39:54,244 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-06 22:39:54,245 INFO L444 ModelExtractionUtils]: 5 out of 9 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:39:54,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:54,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:54,266 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:54,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:39:54,269 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:39:54,269 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:39:54,270 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:39:54,270 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-06 22:39:54,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-06 22:39:54,280 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:39:54,288 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2023-11-06 22:39:54,289 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0) could not be translated [2023-11-06 22:39:54,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:39:54,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:39:54,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:39:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:39:54,334 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:39:54,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:39:54,574 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 22:39:54,628 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-06 22:39:54,630 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 22:39:54,823 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 30 states and 42 transitions. Complement of second has 12 states. [2023-11-06 22:39:54,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-06 22:39:54,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 22:39:54,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 14 transitions. [2023-11-06 22:39:54,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 14 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-06 22:39:54,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:39:54,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-06 22:39:54,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:39:54,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 14 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-06 22:39:54,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:39:54,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 42 transitions. [2023-11-06 22:39:54,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:39:54,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 16 states and 21 transitions. [2023-11-06 22:39:54,847 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-06 22:39:54,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-06 22:39:54,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2023-11-06 22:39:54,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:39:54,850 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-06 22:39:54,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2023-11-06 22:39:54,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2023-11-06 22:39:54,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 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 22:39:54,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-06 22:39:54,879 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-06 22:39:54,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:39:54,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:39:54,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:39:54,884 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 22:39:54,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:39:54,918 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2023-11-06 22:39:54,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2023-11-06 22:39:54,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:39:54,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2023-11-06 22:39:54,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-06 22:39:54,924 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-06 22:39:54,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2023-11-06 22:39:54,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:39:54,924 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2023-11-06 22:39:54,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2023-11-06 22:39:54,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2023-11-06 22:39:54,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:39:54,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2023-11-06 22:39:54,928 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-06 22:39:54,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:39:54,930 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-06 22:39:54,930 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:39:54,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2023-11-06 22:39:54,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:39:54,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:39:54,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:39:54,934 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-06 22:39:54,934 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:39:54,934 INFO L748 eck$LassoCheckResult]: Stem: 125#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 126#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 123#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 121#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 122#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 127#L22-4 [2023-11-06 22:39:54,934 INFO L750 eck$LassoCheckResult]: Loop: 127#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 128#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 131#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 127#L22-4 [2023-11-06 22:39:54,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:54,935 INFO L85 PathProgramCache]: Analyzing trace with hash 28699821, now seen corresponding path program 1 times [2023-11-06 22:39:54,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:54,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907199568] [2023-11-06 22:39:54,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:54,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:54,946 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:39:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:54,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:39:54,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:54,956 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 2 times [2023-11-06 22:39:54,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:54,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020670243] [2023-11-06 22:39:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:54,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:54,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:39:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:54,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:39:54,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:54,969 INFO L85 PathProgramCache]: Analyzing trace with hash 297897965, now seen corresponding path program 1 times [2023-11-06 22:39:54,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:54,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083847646] [2023-11-06 22:39:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:54,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:39:55,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:39:55,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:39:55,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083847646] [2023-11-06 22:39:55,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083847646] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:39:55,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215720410] [2023-11-06 22:39:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:55,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:39:55,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:55,156 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:39:55,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:39:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:39:55,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:39:55,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:39:55,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:39:55,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:39:55,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-06 22:39:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:39:55,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215720410] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:39:55,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:39:55,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 15 [2023-11-06 22:39:55,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343692653] [2023-11-06 22:39:55,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:39:55,547 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:39:55,548 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:39:55,548 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:39:55,548 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:39:55,548 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:39:55,548 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:55,548 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:39:55,548 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:39:55,549 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration2_Loop [2023-11-06 22:39:55,549 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:39:55,549 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:39:55,550 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 22:39:55,553 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 22:39:55,675 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:39:55,675 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:39:55,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:55,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:55,677 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:55,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:39:55,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:39:55,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:39:55,704 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:39:55,704 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:39:55,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:55,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:55,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:55,716 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:55,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:39:55,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:39:55,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:39:55,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:55,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:55,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:55,773 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:55,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:39:55,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:39:55,781 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:39:56,469 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:39:56,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:56,483 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:39:56,484 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:39:56,484 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:39:56,484 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:39:56,484 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:39:56,484 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:56,484 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:39:56,484 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:39:56,484 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration2_Loop [2023-11-06 22:39:56,484 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:39:56,485 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:39:56,486 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 22:39:56,502 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 22:39:56,639 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:39:56,639 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:39:56,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:56,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:56,641 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:56,652 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 22:39:56,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:39:56,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:39:56,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:39:56,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:39:56,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:39:56,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:39:56,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:39:56,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:39:56,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:39:56,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:56,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:56,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:56,699 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:56,707 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 22:39:56,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:39:56,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:39:56,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:39:56,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:39:56,721 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:39:56,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:39:56,732 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:39:56,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:39:56,744 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:39:56,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:56,753 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-06 22:39:56,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:56,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:56,755 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:56,764 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 22:39:56,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:39:56,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:39:56,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:39:56,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:39:56,777 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-06 22:39:56,778 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-06 22:39:56,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:39:56,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:39:56,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:39:56,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:56,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:56,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:56,806 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:56,810 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 22:39:56,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:39:56,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:39:56,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:39:56,823 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:39:56,824 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-06 22:39:56,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:39:56,830 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:39:56,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:39:56,844 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:39:56,853 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-06 22:39:56,853 INFO L444 ModelExtractionUtils]: 6 out of 11 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:39:56,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:56,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:56,859 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:56,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 22:39:56,862 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:39:56,862 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:39:56,862 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:39:56,862 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_#t~nondet2#1 Supporting invariants [] [2023-11-06 22:39:56,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:56,873 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:39:56,875 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2023-11-06 22:39:56,875 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated [2023-11-06 22:39:56,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:39:56,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:39:56,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:39:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:39:56,923 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:39:56,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:39:57,116 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 22:39:57,117 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-06 22:39:57,117 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 22:39:57,161 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 25 states and 33 transitions. Complement of second has 7 states. [2023-11-06 22:39:57,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:39:57,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 22:39:57,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-06 22:39:57,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-06 22:39:57,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:39:57,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 3 letters. [2023-11-06 22:39:57,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:39:57,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 6 letters. [2023-11-06 22:39:57,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:39:57,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-06 22:39:57,167 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-06 22:39:57,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 24 states and 32 transitions. [2023-11-06 22:39:57,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-06 22:39:57,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2023-11-06 22:39:57,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 32 transitions. [2023-11-06 22:39:57,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:39:57,169 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 32 transitions. [2023-11-06 22:39:57,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 32 transitions. [2023-11-06 22:39:57,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-11-06 22:39:57,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 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 22:39:57,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2023-11-06 22:39:57,173 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 31 transitions. [2023-11-06 22:39:57,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:39:57,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:39:57,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:39:57,175 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:39:57,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:39:57,414 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-11-06 22:39:57,414 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2023-11-06 22:39:57,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 22:39:57,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 29 states and 34 transitions. [2023-11-06 22:39:57,417 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-06 22:39:57,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-06 22:39:57,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 34 transitions. [2023-11-06 22:39:57,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:39:57,418 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-06 22:39:57,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 34 transitions. [2023-11-06 22:39:57,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2023-11-06 22:39:57,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.2) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 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 22:39:57,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2023-11-06 22:39:57,421 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-11-06 22:39:57,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:39:57,423 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-11-06 22:39:57,423 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:39:57,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 24 transitions. [2023-11-06 22:39:57,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:39:57,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:39:57,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:39:57,425 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1] [2023-11-06 22:39:57,425 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:39:57,425 INFO L748 eck$LassoCheckResult]: Stem: 340#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 341#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 345#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 348#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 347#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 346#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 338#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 334#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 335#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 342#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 343#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 352#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 349#L22-2 [2023-11-06 22:39:57,426 INFO L750 eck$LassoCheckResult]: Loop: 349#L22-2 assume 0 == main_~a~0#1;main_#t~nondet2#1 := main_~b~0#1; 350#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 353#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 351#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 349#L22-2 [2023-11-06 22:39:57,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:57,426 INFO L85 PathProgramCache]: Analyzing trace with hash 898884598, now seen corresponding path program 1 times [2023-11-06 22:39:57,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:57,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809920047] [2023-11-06 22:39:57,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:57,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:57,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:39:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:57,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:39:57,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:57,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1512010, now seen corresponding path program 1 times [2023-11-06 22:39:57,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:57,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179400213] [2023-11-06 22:39:57,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:57,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:57,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:39:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:57,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:57,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:39:57,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:57,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1065487425, now seen corresponding path program 1 times [2023-11-06 22:39:57,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:57,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955255660] [2023-11-06 22:39:57,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:57,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:39:57,590 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:39:57,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:39:57,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955255660] [2023-11-06 22:39:57,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955255660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:39:57,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:39:57,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:39:57,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375504987] [2023-11-06 22:39:57,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:39:57,647 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:39:57,647 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:39:57,647 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:39:57,647 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:39:57,648 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:39:57,648 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:57,648 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:39:57,648 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:39:57,648 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration3_Loop [2023-11-06 22:39:57,648 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:39:57,649 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:39:57,650 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 22:39:57,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:39:57,658 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 22:39:57,660 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:39:57,784 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:39:57,785 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:39:57,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:57,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:57,786 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:57,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 22:39:57,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:39:57,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:39:57,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:57,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:57,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:57,841 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:57,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:39:57,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:39:57,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 22:39:57,892 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:39:57,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:57,901 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:39:57,901 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:39:57,902 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:39:57,902 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:39:57,902 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:39:57,902 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:57,902 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:39:57,902 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:39:57,902 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration3_Loop [2023-11-06 22:39:57,902 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:39:57,903 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:39:57,904 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 22:39:57,910 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 22:39:57,913 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 22:39:57,915 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 22:39:58,050 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:39:58,050 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:39:58,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:58,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:58,052 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:58,056 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 22:39:58,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:39:58,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:39:58,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:39:58,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:39:58,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:39:58,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 22:39:58,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:39:58,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:39:58,093 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:39:58,096 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:39:58,096 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:39:58,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:58,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:58,098 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:58,105 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:39:58,105 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:39:58,106 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:39:58,106 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 1 Supporting invariants [] [2023-11-06 22:39:58,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-06 22:39:58,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:58,116 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:39:58,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:39:58,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:39:58,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:39:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:39:58,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:39:58,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:39:58,216 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 22:39:58,217 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-06 22:39:58,217 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 24 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 22:39:58,256 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 24 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 50 states and 62 transitions. Complement of second has 6 states. [2023-11-06 22:39:58,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:39:58,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 22:39:58,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-06 22:39:58,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-06 22:39:58,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:39:58,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-06 22:39:58,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:39:58,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-06 22:39:58,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:39:58,262 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 62 transitions. [2023-11-06 22:39:58,267 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:39:58,269 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 41 states and 51 transitions. [2023-11-06 22:39:58,269 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2023-11-06 22:39:58,269 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-06 22:39:58,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2023-11-06 22:39:58,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:39:58,270 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 51 transitions. [2023-11-06 22:39:58,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2023-11-06 22:39:58,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2023-11-06 22:39:58,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 35 states have internal predecessors, (46), 0 states have call successors, (0), 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 22:39:58,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2023-11-06 22:39:58,278 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 46 transitions. [2023-11-06 22:39:58,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:39:58,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:39:58,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:39:58,280 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 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 22:39:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:39:58,307 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-11-06 22:39:58,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 33 transitions. [2023-11-06 22:39:58,310 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:39:58,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 16 states and 17 transitions. [2023-11-06 22:39:58,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-06 22:39:58,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-11-06 22:39:58,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2023-11-06 22:39:58,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:39:58,313 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-06 22:39:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2023-11-06 22:39:58,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-06 22:39:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 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 22:39:58,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2023-11-06 22:39:58,318 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-06 22:39:58,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:39:58,322 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-06 22:39:58,322 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:39:58,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 17 transitions. [2023-11-06 22:39:58,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:39:58,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:39:58,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:39:58,325 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1] [2023-11-06 22:39:58,325 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:39:58,325 INFO L748 eck$LassoCheckResult]: Stem: 548#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 549#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 547#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 545#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 546#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 550#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 551#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 560#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 559#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 558#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 557#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 556#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 553#L22-2 [2023-11-06 22:39:58,326 INFO L750 eck$LassoCheckResult]: Loop: 553#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 554#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 555#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 552#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 553#L22-2 [2023-11-06 22:39:58,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:58,326 INFO L85 PathProgramCache]: Analyzing trace with hash 898884598, now seen corresponding path program 2 times [2023-11-06 22:39:58,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:58,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992693179] [2023-11-06 22:39:58,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:58,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:58,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:39:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:58,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:39:58,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:58,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 1 times [2023-11-06 22:39:58,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:58,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990795157] [2023-11-06 22:39:58,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:58,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:58,386 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:39:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:58,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:39:58,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:39:58,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1065427843, now seen corresponding path program 3 times [2023-11-06 22:39:58,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:39:58,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802967669] [2023-11-06 22:39:58,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:39:58,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:39:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:58,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:39:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:39:58,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:39:58,673 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:39:58,673 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:39:58,673 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:39:58,674 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:39:58,674 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:39:58,674 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:58,674 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:39:58,674 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:39:58,674 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Loop [2023-11-06 22:39:58,674 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:39:58,674 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:39:58,678 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 22:39:58,742 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 22:39:58,828 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-06 22:39:59,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:39:59,407 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:39:59,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:59,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:59,412 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:59,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:39:59,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:39:59,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-06 22:39:59,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:59,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:59,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:59,465 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:59,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:39:59,472 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:39:59,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-06 22:39:59,525 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:39:59,526 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 0, 1] Nus: [1, 0] [2023-11-06 22:39:59,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:59,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:59,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:59,537 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:59,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:39:59,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:39:59,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-06 22:39:59,576 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:39:59,576 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:39:59,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:59,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-06 22:39:59,788 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:39:59,788 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:39:59,788 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:39:59,788 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:39:59,788 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:39:59,788 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:39:59,789 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:39:59,789 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:39:59,789 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Lasso [2023-11-06 22:39:59,789 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:39:59,789 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:39:59,791 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 22:39:59,794 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 22:39:59,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:39:59,868 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 22:39:59,959 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-06 22:40:00,518 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:40:00,518 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:40:00,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:00,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:00,524 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:00,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:00,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:00,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-06 22:40:00,552 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:40:00,552 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:40:00,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:00,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:00,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:00,565 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:00,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:00,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:00,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-06 22:40:00,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:00,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:00,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:00,625 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:00,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:40:00,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:00,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-06 22:40:00,720 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:40:00,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:00,729 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:40:00,729 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:40:00,729 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:40:00,730 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:40:00,730 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:40:00,730 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:00,730 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:40:00,730 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:40:00,730 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration4_Lasso [2023-11-06 22:40:00,730 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:40:00,730 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:40:00,732 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 22:40:00,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:40:00,739 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 22:40:00,804 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 22:40:00,889 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-06 22:40:01,470 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:40:01,470 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:40:01,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:01,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:01,475 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:01,481 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 22:40:01,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-06 22:40:01,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:01,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:40:01,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:01,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:40:01,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:40:01,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:40:01,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:40:01,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:40:01,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:01,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:01,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:01,513 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:01,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-06 22:40:01,520 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 22:40:01,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:01,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:40:01,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:01,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:40:01,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:40:01,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:40:01,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:40:01,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:40:01,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-06 22:40:01,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:01,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:01,554 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:01,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-06 22:40:01,556 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 22:40:01,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:01,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:01,566 INFO L204 nArgumentSynthesizer]: 7 loop disjuncts [2023-11-06 22:40:01,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:40:01,690 INFO L401 nArgumentSynthesizer]: We have 126 Motzkin's Theorem applications. [2023-11-06 22:40:01,690 INFO L402 nArgumentSynthesizer]: A total of 14 supporting invariants were added. [2023-11-06 22:40:03,713 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:40:05,314 INFO L443 ModelExtractionUtils]: Simplification made 31 calls to the SMT solver. [2023-11-06 22:40:05,314 INFO L444 ModelExtractionUtils]: 36 out of 76 variables were initially zero. Simplification set additionally 25 variables to zero. [2023-11-06 22:40:05,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:05,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:05,316 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:05,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-06 22:40:05,318 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:40:05,347 INFO L438 nArgumentSynthesizer]: Removed 11 redundant supporting invariants from a total of 14. [2023-11-06 22:40:05,347 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:40:05,348 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 >= 0, 1*ULTIMATE.start_main_~b~0#1 - 1*ULTIMATE.start_main_~a~0#1 + 1 >= 0, 1*ULTIMATE.start_main_~a~0#1 >= 0] [2023-11-06 22:40:05,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:05,380 INFO L156 tatePredicateManager]: 1 out of 3 supporting invariants were superfluous and have been removed [2023-11-06 22:40:05,411 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:05,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-06 22:40:05,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:05,597 WARN L260 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:40:05,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:05,713 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 22:40:05,714 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 4 loop predicates [2023-11-06 22:40:05,714 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 17 transitions. cyclomatic complexity: 2 Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 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 22:40:05,838 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 17 transitions. cyclomatic complexity: 2. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 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 30 states and 33 transitions. Complement of second has 11 states. [2023-11-06 22:40:05,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-06 22:40:05,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 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 22:40:05,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-11-06 22:40:05,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-06 22:40:05,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:05,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 16 letters. Loop has 4 letters. [2023-11-06 22:40:05,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:05,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-06 22:40:05,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:05,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 33 transitions. [2023-11-06 22:40:05,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:40:05,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 21 states and 23 transitions. [2023-11-06 22:40:05,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-06 22:40:05,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-06 22:40:05,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 23 transitions. [2023-11-06 22:40:05,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:05,851 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-11-06 22:40:05,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 23 transitions. [2023-11-06 22:40:05,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2023-11-06 22:40:05,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.1) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:05,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-11-06 22:40:05,855 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-11-06 22:40:05,855 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-11-06 22:40:05,855 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:40:05,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 22 transitions. [2023-11-06 22:40:05,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:40:05,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:40:05,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:40:05,857 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 1, 1, 1] [2023-11-06 22:40:05,857 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:40:05,857 INFO L748 eck$LassoCheckResult]: Stem: 702#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 703#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 699#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 695#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 696#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 707#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 714#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 697#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 698#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 706#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 700#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 701#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 711#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 713#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 712#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 710#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 704#L22-4 [2023-11-06 22:40:05,857 INFO L750 eck$LassoCheckResult]: Loop: 704#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 705#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 709#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 704#L22-4 [2023-11-06 22:40:05,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:05,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1065427845, now seen corresponding path program 2 times [2023-11-06 22:40:05,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:05,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786411009] [2023-11-06 22:40:05,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:05,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:06,176 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:06,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:06,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786411009] [2023-11-06 22:40:06,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786411009] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:40:06,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593037517] [2023-11-06 22:40:06,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:40:06,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:06,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:06,180 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:40:06,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-06 22:40:06,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:40:06,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:40:06,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-06 22:40:06,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:06,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:40:06,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:06,797 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:06,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593037517] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:40:06,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:40:06,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 12] total 29 [2023-11-06 22:40:06,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743231624] [2023-11-06 22:40:06,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:40:06,801 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:40:06,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:06,801 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 3 times [2023-11-06 22:40:06,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:06,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038631792] [2023-11-06 22:40:06,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:06,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:06,806 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:40:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:06,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:40:06,854 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:40:06,854 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:40:06,854 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:40:06,854 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:40:06,854 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:40:06,854 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:06,855 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:40:06,855 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:40:06,855 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration5_Loop [2023-11-06 22:40:06,855 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:40:06,855 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:40:06,857 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 22:40:06,859 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 22:40:06,968 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:40:06,968 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:40:06,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:06,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:06,971 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:06,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:06,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:06,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-06 22:40:06,998 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:40:06,998 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:40:07,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:07,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:07,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:07,003 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:07,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-06 22:40:07,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:07,007 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:07,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:07,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:07,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:07,042 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:07,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:40:07,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:07,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-06 22:40:07,684 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:40:07,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-11-06 22:40:07,689 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:40:07,689 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:40:07,689 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:40:07,689 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:40:07,689 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:40:07,689 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:07,689 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:40:07,689 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:40:07,689 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration5_Loop [2023-11-06 22:40:07,689 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:40:07,689 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:40:07,690 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 22:40:07,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:40:07,810 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:40:07,810 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:40:07,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:07,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:07,811 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:07,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:40:07,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:07,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:40:07,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:07,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:40:07,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:40:07,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:40:07,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:40:07,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-06 22:40:07,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:40:07,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:07,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:07,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:07,857 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:07,864 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 22:40:07,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-06 22:40:07,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:07,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:40:07,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:07,878 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:40:07,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:40:07,882 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:40:07,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:40:07,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:40:07,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:07,908 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-06 22:40:07,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:07,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:07,909 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:07,916 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 22:40:07,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-06 22:40:07,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:07,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:40:07,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:07,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:40:07,927 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-06 22:40:07,928 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-06 22:40:07,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:40:07,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:40:07,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:07,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:07,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:07,944 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:07,952 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 22:40:07,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-06 22:40:07,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:07,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:40:07,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:07,965 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:40:07,965 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-06 22:40:07,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:40:07,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:40:07,983 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:40:07,992 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-06 22:40:07,992 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-06 22:40:07,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:07,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:08,002 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:08,008 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:40:08,009 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:40:08,009 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:40:08,009 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = -1*ULTIMATE.start_main_#t~nondet2#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-06 22:40:08,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-06 22:40:08,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:08,018 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:40:08,020 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2023-11-06 22:40:08,020 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated [2023-11-06 22:40:08,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:08,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:40:08,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:08,088 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:40:08,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:08,222 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 22:40:08,223 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-06 22:40:08,223 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:08,255 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 34 transitions. Complement of second has 7 states. [2023-11-06 22:40:08,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:40:08,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-11-06 22:40:08,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 16 letters. Loop has 3 letters. [2023-11-06 22:40:08,259 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:08,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 19 letters. Loop has 3 letters. [2023-11-06 22:40:08,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:08,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 16 letters. Loop has 6 letters. [2023-11-06 22:40:08,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:08,261 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 34 transitions. [2023-11-06 22:40:08,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:40:08,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 28 states and 32 transitions. [2023-11-06 22:40:08,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-06 22:40:08,262 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-06 22:40:08,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2023-11-06 22:40:08,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:40:08,263 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-11-06 22:40:08,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2023-11-06 22:40:08,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2023-11-06 22:40:08,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:08,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-11-06 22:40:08,270 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-11-06 22:40:08,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:08,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-06 22:40:08,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2023-11-06 22:40:08,271 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 30 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 30 states have internal predecessors, (46), 0 states have call successors, (0), 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 22:40:08,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:40:08,527 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2023-11-06 22:40:08,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 47 transitions. [2023-11-06 22:40:08,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 22:40:08,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 43 states and 47 transitions. [2023-11-06 22:40:08,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-06 22:40:08,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-06 22:40:08,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 47 transitions. [2023-11-06 22:40:08,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:40:08,530 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 47 transitions. [2023-11-06 22:40:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 47 transitions. [2023-11-06 22:40:08,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2023-11-06 22:40:08,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 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 22:40:08,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2023-11-06 22:40:08,533 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 46 transitions. [2023-11-06 22:40:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:40:08,534 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 46 transitions. [2023-11-06 22:40:08,535 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 22:40:08,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 46 transitions. [2023-11-06 22:40:08,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:40:08,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:40:08,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:40:08,537 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 8, 8, 7, 1, 1, 1] [2023-11-06 22:40:08,537 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:40:08,537 INFO L748 eck$LassoCheckResult]: Stem: 1035#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1036#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1032#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1028#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1029#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1040#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1068#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1030#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1031#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1039#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1033#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1034#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1065#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1064#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1063#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1062#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1061#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1060#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1059#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1058#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1057#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1056#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1055#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1054#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1053#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1052#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1051#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1050#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1047#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1049#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1048#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1046#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 1045#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1043#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1069#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1066#L22-2 [2023-11-06 22:40:08,537 INFO L750 eck$LassoCheckResult]: Loop: 1066#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1037#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1038#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1067#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1066#L22-2 [2023-11-06 22:40:08,538 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:08,538 INFO L85 PathProgramCache]: Analyzing trace with hash -213061435, now seen corresponding path program 3 times [2023-11-06 22:40:08,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:08,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968018030] [2023-11-06 22:40:08,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:08,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:08,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:09,226 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:09,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:40:09,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968018030] [2023-11-06 22:40:09,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968018030] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:40:09,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141177057] [2023-11-06 22:40:09,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:40:09,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:40:09,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:09,228 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:40:09,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-06 22:40:09,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2023-11-06 22:40:09,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:40:09,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-06 22:40:09,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:09,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:40:10,973 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 23 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:10,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141177057] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:40:10,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:40:10,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 25] total 58 [2023-11-06 22:40:10,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136008502] [2023-11-06 22:40:10,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:40:10,975 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:40:10,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:10,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 2 times [2023-11-06 22:40:10,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:10,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242054201] [2023-11-06 22:40:10,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:10,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:10,980 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:40:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:10,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:40:11,215 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:40:11,216 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:40:11,216 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:40:11,216 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:40:11,216 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:40:11,216 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:11,216 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:40:11,216 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:40:11,216 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration6_Loop [2023-11-06 22:40:11,216 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:40:11,217 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:40:11,218 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:40:11,280 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 22:40:11,349 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-06 22:40:11,882 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:40:11,882 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:40:11,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:11,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:11,888 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:11,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-06 22:40:11,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:11,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:11,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:11,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:11,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:11,919 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:11,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-06 22:40:11,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:40:11,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:11,952 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:40:11,952 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 0, 1] Nus: [1, 0] [2023-11-06 22:40:11,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:11,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:11,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:11,961 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:11,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-06 22:40:11,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:11,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:11,977 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:40:11,977 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:40:11,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-11-06 22:40:11,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:40:11,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-11-06 22:40:11,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=640, Invalid=2666, Unknown=0, NotChecked=0, Total=3306 [2023-11-06 22:40:11,982 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. cyclomatic complexity: 7 Second operand has 58 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 58 states have internal predecessors, (97), 0 states have call successors, (0), 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 22:40:12,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:40:12,686 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2023-11-06 22:40:12,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 71 transitions. [2023-11-06 22:40:12,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 22:40:12,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 67 states and 71 transitions. [2023-11-06 22:40:12,688 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-06 22:40:12,688 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-06 22:40:12,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 71 transitions. [2023-11-06 22:40:12,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:40:12,688 INFO L218 hiAutomatonCegarLoop]: Abstraction has 67 states and 71 transitions. [2023-11-06 22:40:12,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 71 transitions. [2023-11-06 22:40:12,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2023-11-06 22:40:12,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.0606060606060606) internal successors, (70), 65 states have internal predecessors, (70), 0 states have call successors, (0), 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 22:40:12,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2023-11-06 22:40:12,692 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 70 transitions. [2023-11-06 22:40:12,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-06 22:40:12,693 INFO L428 stractBuchiCegarLoop]: Abstraction has 66 states and 70 transitions. [2023-11-06 22:40:12,693 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-06 22:40:12,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 70 transitions. [2023-11-06 22:40:12,694 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:40:12,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:40:12,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:40:12,696 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [15, 14, 14, 13, 1, 1, 1] [2023-11-06 22:40:12,696 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:40:12,697 INFO L748 eck$LassoCheckResult]: Stem: 1434#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1435#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 1432#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1428#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1429#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1440#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1433#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1430#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1431#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1438#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1439#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1492#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1489#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1488#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1487#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1486#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1485#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1484#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1483#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1482#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1481#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1480#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1479#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1478#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1477#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1476#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1475#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1474#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1473#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1472#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1471#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1470#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1469#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1468#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1467#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1466#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1465#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1464#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1463#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1462#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1461#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1460#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1459#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1458#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1457#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1456#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1455#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1454#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1453#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1452#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1451#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1450#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1447#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1449#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1448#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1446#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 1445#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1443#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1493#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1490#L22-2 [2023-11-06 22:40:12,697 INFO L750 eck$LassoCheckResult]: Loop: 1490#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 1436#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 1437#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1491#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 1490#L22-2 [2023-11-06 22:40:12,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:12,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1273996581, now seen corresponding path program 4 times [2023-11-06 22:40:12,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:12,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804075919] [2023-11-06 22:40:12,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:12,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:12,740 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:40:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:12,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:40:12,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:12,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 3 times [2023-11-06 22:40:12,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:12,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038910863] [2023-11-06 22:40:12,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:12,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:12,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:40:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:12,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:40:12,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:12,799 INFO L85 PathProgramCache]: Analyzing trace with hash 745232610, now seen corresponding path program 5 times [2023-11-06 22:40:12,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:12,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571707201] [2023-11-06 22:40:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:12,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:12,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:40:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:12,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:40:13,153 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:40:13,153 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:40:13,153 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:40:13,153 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:40:13,154 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:40:13,154 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:13,154 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:40:13,154 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:40:13,154 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Loop [2023-11-06 22:40:13,154 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:40:13,154 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:40:13,155 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 22:40:13,216 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 22:40:13,296 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-06 22:40:13,849 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:40:13,850 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:40:13,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:13,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:13,851 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:13,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-06 22:40:13,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:13,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:13,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-11-06 22:40:13,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:13,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:13,878 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:13,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-06 22:40:13,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:40:13,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:13,910 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:40:13,910 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=-1, ULTIMATE.start_main_~b~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=1, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0, ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~b~0#1=0}] Lambdas: [1, 1, 0] Nus: [0, 1] [2023-11-06 22:40:13,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-06 22:40:13,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:13,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:13,917 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:13,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-06 22:40:13,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:13,924 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:13,936 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:40:13,936 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:40:13,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-06 22:40:16,440 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:40:16,440 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:40:16,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:40:16,440 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:40:16,440 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:40:16,441 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:16,441 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:40:16,441 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:40:16,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Lasso [2023-11-06 22:40:16,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:40:16,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:40:16,443 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 22:40:16,446 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 22:40:16,448 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 22:40:16,451 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 22:40:16,517 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 22:40:16,544 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 22:40:16,662 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-06 22:40:17,242 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:40:17,243 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:40:17,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:17,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:17,245 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:17,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:17,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:17,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-06 22:40:17,276 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:40:17,276 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:40:17,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:17,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:17,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:17,280 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:17,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-06 22:40:17,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:17,296 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:40:17,296 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:40:17,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2023-11-06 22:40:17,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:17,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:17,300 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:17,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-06 22:40:17,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:17,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:17,316 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:40:17,316 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:40:17,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:17,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:17,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:17,320 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:17,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-06 22:40:17,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:17,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:17,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2023-11-06 22:40:17,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:17,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:17,343 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:17,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-06 22:40:17,345 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:40:17,345 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:17,373 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:40:17,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:17,377 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:40:17,377 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:40:17,377 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:40:17,377 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:40:17,377 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:40:17,377 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:17,378 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:40:17,378 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:40:17,378 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration7_Lasso [2023-11-06 22:40:17,378 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:40:17,378 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:40:17,380 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 22:40:17,383 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 22:40:17,385 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 22:40:17,388 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 22:40:17,411 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 22:40:17,473 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 22:40:17,581 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-11-06 22:40:18,152 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:40:18,153 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:40:18,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:18,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:18,154 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:18,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-06 22:40:18,157 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 22:40:18,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:18,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:18,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:40:18,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:40:18,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:40:18,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:40:18,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:40:18,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-11-06 22:40:18,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:18,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:18,175 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:18,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-06 22:40:18,178 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 22:40:18,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:18,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:40:18,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:18,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:40:18,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:40:18,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:40:18,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:40:18,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:40:18,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2023-11-06 22:40:18,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:18,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:18,194 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:18,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-06 22:40:18,196 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 22:40:18,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:18,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:40:18,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:18,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:40:18,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:40:18,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:40:18,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:40:18,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:40:18,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2023-11-06 22:40:18,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:18,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:18,212 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:18,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-06 22:40:18,214 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 22:40:18,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:18,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:18,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:40:18,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:40:18,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:40:18,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:40:18,259 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:40:18,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:18,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:18,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:18,264 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:18,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-06 22:40:18,268 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 22:40:18,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:18,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:18,281 INFO L204 nArgumentSynthesizer]: 7 loop disjuncts [2023-11-06 22:40:18,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:40:18,392 INFO L401 nArgumentSynthesizer]: We have 126 Motzkin's Theorem applications. [2023-11-06 22:40:18,393 INFO L402 nArgumentSynthesizer]: A total of 14 supporting invariants were added. [2023-11-06 22:40:19,964 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:40:20,971 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2023-11-06 22:40:20,972 INFO L444 ModelExtractionUtils]: 47 out of 76 variables were initially zero. Simplification set additionally 23 variables to zero. [2023-11-06 22:40:20,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:20,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:20,975 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:20,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-06 22:40:20,976 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:40:21,000 INFO L438 nArgumentSynthesizer]: Removed 13 redundant supporting invariants from a total of 14. [2023-11-06 22:40:21,000 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:40:21,000 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 4294967295 Supporting invariants [-2*ULTIMATE.start_main_~a~0#1 + 2*ULTIMATE.start_main_~b~0#1 + 3 >= 0] [2023-11-06 22:40:21,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:21,017 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-06 22:40:21,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:21,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:40:21,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:21,217 WARN L260 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:40:21,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:21,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:21,431 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 4 loop predicates [2023-11-06 22:40:21,431 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7 Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:21,565 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 105 states and 110 transitions. Complement of second has 11 states. [2023-11-06 22:40:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-06 22:40:21,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:21,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-11-06 22:40:21,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 10 transitions. Stem has 59 letters. Loop has 4 letters. [2023-11-06 22:40:21,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:21,567 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:40:21,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:21,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:40:21,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:21,769 WARN L260 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:40:21,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:21,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:21,998 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 22:40:21,999 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 4 loop predicates [2023-11-06 22:40:21,999 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7 Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:22,326 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 70 transitions. cyclomatic complexity: 7. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 118 states and 125 transitions. Complement of second has 14 states. [2023-11-06 22:40:22,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 3 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-06 22:40:22,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:40:22,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2023-11-06 22:40:22,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. Stem has 59 letters. Loop has 4 letters. [2023-11-06 22:40:22,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:22,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. Stem has 63 letters. Loop has 4 letters. [2023-11-06 22:40:22,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:22,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 11 transitions. Stem has 59 letters. Loop has 8 letters. [2023-11-06 22:40:22,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:22,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 125 transitions. [2023-11-06 22:40:22,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:40:22,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 73 states and 78 transitions. [2023-11-06 22:40:22,333 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-06 22:40:22,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-06 22:40:22,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 78 transitions. [2023-11-06 22:40:22,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:40:22,334 INFO L218 hiAutomatonCegarLoop]: Abstraction has 73 states and 78 transitions. [2023-11-06 22:40:22,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 78 transitions. [2023-11-06 22:40:22,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2023-11-06 22:40:22,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.0588235294117647) internal successors, (72), 67 states have internal predecessors, (72), 0 states have call successors, (0), 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 22:40:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2023-11-06 22:40:22,347 INFO L240 hiAutomatonCegarLoop]: Abstraction has 68 states and 72 transitions. [2023-11-06 22:40:22,347 INFO L428 stractBuchiCegarLoop]: Abstraction has 68 states and 72 transitions. [2023-11-06 22:40:22,347 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-06 22:40:22,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 72 transitions. [2023-11-06 22:40:22,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:40:22,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:40:22,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:40:22,350 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [15, 14, 14, 14, 1, 1, 1] [2023-11-06 22:40:22,352 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:40:22,353 INFO L748 eck$LassoCheckResult]: Stem: 2175#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2176#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := 16;main_~b~0#1 := 30;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2172#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2173#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2179#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2178#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2174#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2170#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2171#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2180#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2235#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2234#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2233#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2232#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2231#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2230#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2229#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2228#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2227#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2226#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2225#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2224#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2223#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2222#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2221#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2220#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2219#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2218#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2217#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2216#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2215#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2214#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2213#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2212#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2211#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2210#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2209#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2208#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2207#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2206#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2205#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2204#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2203#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2202#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2201#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2200#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2199#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2198#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2197#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2196#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2195#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2193#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2192#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2190#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2191#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2194#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 2187#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2188#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2183#L22 assume !(0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1); 2181#L22-2 assume !(0 == main_~a~0#1);assume (main_~b~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 >= main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~nondet2#1 >= main_~b~0#1;assume (main_~b~0#1 < 0 || main_~a~0#1 < 0) || main_#t~nondet2#1 <= main_~b~0#1 + main_~a~0#1;assume (main_~b~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~nondet2#1 < 0;assume main_#t~nondet2#1 <= 2147483647; 2169#L22-4 [2023-11-06 22:40:22,353 INFO L750 eck$LassoCheckResult]: Loop: 2169#L22-4 main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - main_~b~0#1; 2177#L20-2 assume !!(main_~x~0#1 > 0);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 2168#L22 assume 0 == main_~b~0#1 || main_~b~0#1 == main_~a~0#1;main_#t~nondet2#1 := main_~a~0#1; 2169#L22-4 [2023-11-06 22:40:22,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:22,354 INFO L85 PathProgramCache]: Analyzing trace with hash -839188326, now seen corresponding path program 6 times [2023-11-06 22:40:22,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:22,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756420467] [2023-11-06 22:40:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:22,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:22,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:40:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:22,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:40:22,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:22,435 INFO L85 PathProgramCache]: Analyzing trace with hash 52249, now seen corresponding path program 4 times [2023-11-06 22:40:22,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:22,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476617270] [2023-11-06 22:40:22,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:22,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:22,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:40:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:22,448 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:40:22,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:22,449 INFO L85 PathProgramCache]: Analyzing trace with hash 745232608, now seen corresponding path program 7 times [2023-11-06 22:40:22,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:40:22,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664119488] [2023-11-06 22:40:22,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:40:22,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:40:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:22,485 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:40:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:40:22,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:40:22,570 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:40:22,570 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:40:22,571 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:40:22,571 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:40:22,571 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:40:22,571 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:22,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:40:22,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:40:22,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration8_Loop [2023-11-06 22:40:22,571 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:40:22,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:40:22,572 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 22:40:22,589 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 22:40:22,687 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:40:22,687 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:40:22,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:22,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:22,688 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:22,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:40:22,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:22,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-06 22:40:22,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:22,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:22,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:22,721 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:22,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:40:22,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:40:22,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-06 22:40:23,365 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:40:23,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2023-11-06 22:40:23,370 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:40:23,370 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:40:23,370 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:40:23,370 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:40:23,370 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:40:23,370 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:23,370 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:40:23,370 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:40:23,370 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-01.c_Iteration8_Loop [2023-11-06 22:40:23,370 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:40:23,371 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:40:23,371 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 22:40:23,373 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 22:40:23,494 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:40:23,494 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:40:23,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:23,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:23,496 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:23,504 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 22:40:23,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:23,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:40:23,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:23,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:40:23,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:40:23,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:40:23,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:40:23,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-06 22:40:23,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:40:23,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:23,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:23,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:23,533 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:23,538 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 22:40:23,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-11-06 22:40:23,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:23,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:40:23,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:23,551 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:40:23,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:40:23,554 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:40:23,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:40:23,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:40:23,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:23,577 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-06 22:40:23,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:23,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:23,578 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:23,584 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 22:40:23,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:23,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:40:23,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:23,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:40:23,597 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-06 22:40:23,598 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-06 22:40:23,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:40:23,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2023-11-06 22:40:23,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:40:23,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:23,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:23,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:23,628 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:23,636 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 22:40:23,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:40:23,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:40:23,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:40:23,649 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:40:23,649 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-06 22:40:23,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-11-06 22:40:23,654 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:40:23,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:40:23,671 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:40:23,679 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-06 22:40:23,679 INFO L444 ModelExtractionUtils]: 6 out of 11 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:40:23,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:40:23,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:40:23,681 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:40:23,684 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:40:23,684 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:40:23,685 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:40:23,685 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -1*ULTIMATE.start_main_~a~0#1 f1 = -1*ULTIMATE.start_main_#t~nondet2#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-06 22:40:23,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-11-06 22:40:23,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:23,690 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:40:23,691 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated [2023-11-06 22:40:23,691 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated [2023-11-06 22:40:23,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:23,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:40:23,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:23,868 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:40:23,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:24,005 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 22:40:24,006 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-06 22:40:24,007 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 22:40:24,037 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 76 transitions. Complement of second has 7 states. [2023-11-06 22:40:24,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:40:24,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 22:40:24,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-06 22:40:24,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 60 letters. Loop has 3 letters. [2023-11-06 22:40:24,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:24,039 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:40:24,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:24,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:40:24,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:24,191 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:40:24,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:24,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:40:24,351 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-06 22:40:24,351 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 22:40:24,376 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 76 transitions. Complement of second has 7 states. [2023-11-06 22:40:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:40:24,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 22:40:24,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-06 22:40:24,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 60 letters. Loop has 3 letters. [2023-11-06 22:40:24,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:24,378 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:40:24,394 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:40:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:24,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:40:24,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:24,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:40:24,556 WARN L260 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:40:24,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:40:24,698 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 22:40:24,699 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 3 loop predicates [2023-11-06 22:40:24,699 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 22:40:24,730 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 72 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 131 states and 139 transitions. Complement of second has 8 states. [2023-11-06 22:40:24,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:40:24,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 22:40:24,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-06 22:40:24,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 60 letters. Loop has 3 letters. [2023-11-06 22:40:24,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:24,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 63 letters. Loop has 3 letters. [2023-11-06 22:40:24,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:24,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 60 letters. Loop has 6 letters. [2023-11-06 22:40:24,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:40:24,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 131 states and 139 transitions. [2023-11-06 22:40:24,734 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:40:24,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 131 states to 0 states and 0 transitions. [2023-11-06 22:40:24,735 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:40:24,735 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:40:24,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:40:24,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:40:24,735 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:40:24,735 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:40:24,735 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:40:24,736 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-06 22:40:24,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:40:24,736 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:40:24,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:40:24,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:40:24 BoogieIcfgContainer [2023-11-06 22:40:24,744 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:40:24,744 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:40:24,744 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:40:24,744 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:40:24,745 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:52" (3/4) ... [2023-11-06 22:40:24,747 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:40:24,748 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:40:24,748 INFO L158 Benchmark]: Toolchain (without parser) took 32976.67ms. Allocated memory was 197.1MB in the beginning and 308.3MB in the end (delta: 111.1MB). Free memory was 153.4MB in the beginning and 243.6MB in the end (delta: -90.2MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2023-11-06 22:40:24,749 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 197.1MB. Free memory is still 173.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:40:24,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.33ms. Allocated memory is still 197.1MB. Free memory was 153.3MB in the beginning and 143.9MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:40:24,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.55ms. Allocated memory is still 197.1MB. Free memory was 143.9MB in the beginning and 142.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:40:24,750 INFO L158 Benchmark]: Boogie Preprocessor took 26.98ms. Allocated memory is still 197.1MB. Free memory was 142.5MB in the beginning and 141.6MB in the end (delta: 909.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:40:24,750 INFO L158 Benchmark]: RCFGBuilder took 273.20ms. Allocated memory is still 197.1MB. Free memory was 141.3MB in the beginning and 132.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:40:24,750 INFO L158 Benchmark]: BuchiAutomizer took 32398.58ms. Allocated memory was 197.1MB in the beginning and 308.3MB in the end (delta: 111.1MB). Free memory was 132.0MB in the beginning and 243.6MB in the end (delta: -111.6MB). Peak memory consumption was 875.4kB. Max. memory is 16.1GB. [2023-11-06 22:40:24,751 INFO L158 Benchmark]: Witness Printer took 3.76ms. Allocated memory is still 308.3MB. Free memory is still 243.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:40:24,752 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 197.1MB. Free memory is still 173.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.33ms. Allocated memory is still 197.1MB. Free memory was 153.3MB in the beginning and 143.9MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.55ms. Allocated memory is still 197.1MB. Free memory was 143.9MB in the beginning and 142.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.98ms. Allocated memory is still 197.1MB. Free memory was 142.5MB in the beginning and 141.6MB in the end (delta: 909.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 273.20ms. Allocated memory is still 197.1MB. Free memory was 141.3MB in the beginning and 132.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 32398.58ms. Allocated memory was 197.1MB in the beginning and 308.3MB in the end (delta: 111.1MB). Free memory was 132.0MB in the beginning and 243.6MB in the end (delta: -111.6MB). Peak memory consumption was 875.4kB. Max. memory is 16.1GB. * Witness Printer took 3.76ms. Allocated memory is still 308.3MB. Free memory is still 243.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -1 * ~a~0 > 0 then -1 * ~a~0 else ~x~0 + -1 * #t~nondet2) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (5 trivial, 6 deterministic, 1 nondeterministic). One deterministic module has 2-nested ranking function NULL, NULL and consists of 7 locations. One deterministic module has 2-nested ranking function NULL, NULL and consists of 4 locations. One deterministic module has affine ranking function ((-2 * a) + 1) and consists of 4 locations. One deterministic module has affine ranking function ((2 * x) + 1) and consists of 7 locations. One deterministic module has 2-nested ranking function NULL, NULL and consists of 4 locations. One deterministic module has affine ranking function (4294967295 + (-2 * a)) and consists of 9 locations. One nondeterministic module has 2-nested ranking function NULL, NULL and consists of 4 locations. 5 modules have a trivial ranking function, the largest among these consists of 58 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 32.3s and 9 iterations. TraceHistogramMax:15. Analysis of lassos took 26.7s. Construction of modules took 0.8s. Büchi inclusion checks took 4.5s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 30 StatesRemovedByMinimization, 10 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 [5, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 246 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 239 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 213 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1044 IncrementalHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 213 mSolverCounterUnsat, 66 mSDtfsCounter, 1044 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN1 SILU0 SILI0 SILT1 lasso2 LassoPreprocessingBenchmarks: Lassos: inital57 mio100 ax100 hnf100 lsp99 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf94 smp100 dnf901 smp57 tf101 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 3794ms VariablesStem: 4 VariablesLoop: 7 DisjunctsStem: 1 DisjunctsLoop: 7 SupportingInvariants: 14 MotzkinApplications: 126 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.3s 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 22:40:24,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-06 22:40:24,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:25,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:40:25,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d639095-a4d5-448e-90a7-a5134a459b71/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