./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Log.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Log.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 08d23a4fccc00925380f274033d6bce2f9ea0cd5a54ce734e93b963eb060b109 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:13:28,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:13:28,335 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 02:13:28,341 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:13:28,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:13:28,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:13:28,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:13:28,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:13:28,373 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:13:28,373 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:13:28,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:13:28,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:13:28,374 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:13:28,374 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 02:13:28,375 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 02:13:28,375 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 02:13:28,375 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 02:13:28,375 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 02:13:28,375 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 02:13:28,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:13:28,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 02:13:28,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:13:28,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:13:28,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 02:13:28,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 02:13:28,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 02:13:28,377 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:13:28,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:13:28,377 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 02:13:28,377 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:13:28,377 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:13:28,378 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:13:28,378 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:28,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:13:28,378 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 02:13:28,379 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 02:13:28,379 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08d23a4fccc00925380f274033d6bce2f9ea0cd5a54ce734e93b963eb060b109 [2024-11-28 02:13:28,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:13:28,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:13:28,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:13:28,773 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:13:28,774 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:13:28,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-restricted-15/Log.c [2024-11-28 02:13:32,345 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/data/c2111f37a/66ab267f579e4d41a20fb7c63f4d772e/FLAG35f029b72 [2024-11-28 02:13:32,718 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:13:32,719 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/sv-benchmarks/c/termination-restricted-15/Log.c [2024-11-28 02:13:32,732 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/data/c2111f37a/66ab267f579e4d41a20fb7c63f4d772e/FLAG35f029b72 [2024-11-28 02:13:32,756 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/data/c2111f37a/66ab267f579e4d41a20fb7c63f4d772e [2024-11-28 02:13:32,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:13:32,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:13:32,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:32,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:13:32,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:13:32,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:32" (1/1) ... [2024-11-28 02:13:32,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ff7820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:32, skipping insertion in model container [2024-11-28 02:13:32,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:32" (1/1) ... [2024-11-28 02:13:32,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:13:33,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:33,010 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:13:33,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:33,040 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:13:33,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33 WrapperNode [2024-11-28 02:13:33,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:33,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:33,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:13:33,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:13:33,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,084 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2024-11-28 02:13:33,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:33,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:13:33,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:13:33,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:13:33,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,099 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,106 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 02:13:33,107 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,107 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,110 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:13:33,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:13:33,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:13:33,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:13:33,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (1/1) ... [2024-11-28 02:13:33,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:33,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:33,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:33,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 02:13:33,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:13:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:13:33,318 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:13:33,321 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:13:33,400 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-28 02:13:33,402 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:13:33,417 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:13:33,417 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:13:33,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:33 BoogieIcfgContainer [2024-11-28 02:13:33,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:13:33,420 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 02:13:33,422 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 02:13:33,434 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 02:13:33,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:13:33,435 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:13:32" (1/3) ... [2024-11-28 02:13:33,436 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@131b6d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:13:33, skipping insertion in model container [2024-11-28 02:13:33,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:13:33,437 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:33" (2/3) ... [2024-11-28 02:13:33,437 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@131b6d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:13:33, skipping insertion in model container [2024-11-28 02:13:33,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:13:33,437 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:33" (3/3) ... [2024-11-28 02:13:33,442 INFO L363 chiAutomizerObserver]: Analyzing ICFG Log.c [2024-11-28 02:13:33,507 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 02:13:33,507 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 02:13:33,508 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 02:13:33,508 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 02:13:33,508 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 02:13:33,508 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 02:13:33,508 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 02:13:33,509 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 02:13:33,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) 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) [2024-11-28 02:13:33,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 02:13:33,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:13:33,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:13:33,540 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:13:33,541 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:13:33,541 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 02:13:33,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) 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) [2024-11-28 02:13:33,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 02:13:33,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:13:33,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:13:33,543 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:13:33,543 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:13:33,552 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0;" [2024-11-28 02:13:33,552 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 1;" "main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0;" "assume !(main_~xtmp~0#1 > 1);" "main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1;" [2024-11-28 02:13:33,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:33,559 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 02:13:33,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:13:33,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804796790] [2024-11-28 02:13:33,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:33,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:33,654 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:13:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:33,673 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:13:33,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:33,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1174027, now seen corresponding path program 1 times [2024-11-28 02:13:33,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:13:33,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381543261] [2024-11-28 02:13:33,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:33,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:33,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:13:33,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381543261] [2024-11-28 02:13:33,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381543261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:13:33,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096583081] [2024-11-28 02:13:33,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:33,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:33,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:33,801 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:13:33,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:13:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:33,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:13:33,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:33,900 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:13:33,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096583081] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:13:33,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:13:33,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 02:13:33,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107326665] [2024-11-28 02:13:33,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:13:33,936 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 02:13:33,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:13:33,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:13:33,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:33,976 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.4) 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) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:34,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:34,020 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2024-11-28 02:13:34,022 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2024-11-28 02:13:34,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-28 02:13:34,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2024-11-28 02:13:34,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-28 02:13:34,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-28 02:13:34,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2024-11-28 02:13:34,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:13:34,034 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-11-28 02:13:34,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2024-11-28 02:13:34,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-28 02:13:34,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:34,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2024-11-28 02:13:34,072 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-11-28 02:13:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:13:34,080 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-11-28 02:13:34,080 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 02:13:34,080 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2024-11-28 02:13:34,081 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-28 02:13:34,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:13:34,081 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:13:34,081 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:13:34,082 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-28 02:13:34,082 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0;" [2024-11-28 02:13:34,084 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 1;" "main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0;" "assume main_~xtmp~0#1 > 1;" "main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1;" "assume !(main_~xtmp~0#1 > 1);" "main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1;" [2024-11-28 02:13:34,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:34,085 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-28 02:13:34,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:13:34,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364502170] [2024-11-28 02:13:34,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:34,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:34,098 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:13:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:34,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:13:34,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:34,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1128177167, now seen corresponding path program 1 times [2024-11-28 02:13:34,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:13:34,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322187423] [2024-11-28 02:13:34,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:34,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:34,132 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:13:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:34,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:13:34,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:34,150 INFO L85 PathProgramCache]: Analyzing trace with hash 208226385, now seen corresponding path program 1 times [2024-11-28 02:13:34,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:13:34,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803462669] [2024-11-28 02:13:34,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:34,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:34,162 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:13:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:34,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:13:34,327 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:13:34,328 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:13:34,328 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:13:34,328 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:13:34,329 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:13:34,329 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:34,329 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:13:34,329 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:13:34,329 INFO L132 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration2_Loop [2024-11-28 02:13:34,330 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:13:34,330 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:13:34,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:34,373 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:34,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:34,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:34,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:34,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:34,562 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:13:34,563 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:13:34,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:34,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:34,569 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:34,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 02:13:34,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:13:34,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:34,614 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:13:34,615 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:13:34,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-28 02:13:34,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:34,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:34,634 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:34,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 02:13:34,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:13:34,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:34,669 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:13:34,669 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:13:34,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-28 02:13:34,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:34,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:34,680 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:34,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 02:13:34,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:13:34,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:34,725 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:13:34,726 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~xtmp~0#1=0} Honda state: {ULTIMATE.start_main_~xtmp~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:13:34,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-28 02:13:34,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:34,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:34,748 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:34,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 02:13:34,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:13:34,755 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:34,777 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:13:34,777 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0#1=1} Honda state: {ULTIMATE.start_main_~restmp~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:13:34,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:34,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:34,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:34,792 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:34,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 02:13:34,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:13:34,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:34,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:34,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:34,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:34,832 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:34,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 02:13:34,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:13:34,839 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:34,907 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:13:34,907 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0#1=0} Honda state: {ULTIMATE.start_main_~res~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0#1=1}, {ULTIMATE.start_main_~res~0#1=5}, {ULTIMATE.start_main_~res~0#1=-5}] Lambdas: [1, 2, 1] Nus: [0, 1] [2024-11-28 02:13:34,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:34,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:34,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:34,924 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:34,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 02:13:34,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:13:34,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:34,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-28 02:13:34,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:34,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:34,969 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:34,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 02:13:34,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:13:34,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:34,998 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:13:35,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-28 02:13:35,012 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:13:35,012 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:13:35,012 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:13:35,012 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:13:35,012 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:13:35,012 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:35,013 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:13:35,013 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:13:35,013 INFO L132 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration2_Loop [2024-11-28 02:13:35,013 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:13:35,013 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:13:35,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:35,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:35,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:35,041 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:35,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:35,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:35,190 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:13:35,196 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:13:35,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:35,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:35,201 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:35,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-28 02:13:35,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:13:35,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:13:35,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:13:35,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:13:35,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:13:35,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:13:35,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:13:35,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:13:35,238 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:13:35,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-28 02:13:35,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:35,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:35,253 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:35,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 02:13:35,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:13:35,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:13:35,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:13:35,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:13:35,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:13:35,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:13:35,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:13:35,289 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:13:35,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:35,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:35,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:35,302 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:35,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-28 02:13:35,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:13:35,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:13:35,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:13:35,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:13:35,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:13:35,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:13:35,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:13:35,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:13:35,328 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:13:35,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-28 02:13:35,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:35,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:35,340 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:35,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-28 02:13:35,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:13:35,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:13:35,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:13:35,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:13:35,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:13:35,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:13:35,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:13:35,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:13:35,362 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:13:35,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-28 02:13:35,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:35,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:35,372 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:35,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 02:13:35,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:13:35,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:13:35,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:13:35,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:13:35,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:13:35,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:13:35,396 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:13:35,403 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:13:35,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-28 02:13:35,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:35,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:35,419 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:35,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 02:13:35,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:13:35,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:13:35,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:13:35,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:13:35,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:13:35,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:13:35,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:13:35,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:13:35,452 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:13:35,459 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:13:35,466 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 02:13:35,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:35,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:35,479 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:35,484 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:13:35,484 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:13:35,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 02:13:35,484 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:13:35,485 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-28 02:13:35,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-28 02:13:35,500 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:13:35,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:35,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:13:35,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:35,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:13:35,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:35,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:13:35,617 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 [2024-11-28 02:13:35,618 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2 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) [2024-11-28 02:13:35,701 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2. 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 14 states and 17 transitions. Complement of second has 8 states. [2024-11-28 02:13:35,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 02:13:35,703 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) [2024-11-28 02:13:35,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2024-11-28 02:13:35,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-28 02:13:35,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:13:35,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 8 letters. Loop has 6 letters. [2024-11-28 02:13:35,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:13:35,710 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 12 letters. [2024-11-28 02:13:35,710 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:13:35,711 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2024-11-28 02:13:35,711 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:13:35,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 16 transitions. [2024-11-28 02:13:35,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-28 02:13:35,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-28 02:13:35,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2024-11-28 02:13:35,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:13:35,713 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-28 02:13:35,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2024-11-28 02:13:35,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-28 02:13:35,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:35,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2024-11-28 02:13:35,714 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-11-28 02:13:35,714 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-11-28 02:13:35,715 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 02:13:35,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2024-11-28 02:13:35,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:13:35,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:13:35,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:13:35,716 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-28 02:13:35,716 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 02:13:35,716 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0;" "assume main_~x~0#1 > 1;" "main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0;" [2024-11-28 02:13:35,716 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~xtmp~0#1 > 1;" "main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1;" [2024-11-28 02:13:35,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:35,717 INFO L85 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2024-11-28 02:13:35,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:13:35,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176042282] [2024-11-28 02:13:35,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:35,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:35,723 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:13:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:35,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:13:35,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:35,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1541, now seen corresponding path program 1 times [2024-11-28 02:13:35,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:13:35,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079178834] [2024-11-28 02:13:35,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:35,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:35,735 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:13:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:35,746 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:13:35,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:35,747 INFO L85 PathProgramCache]: Analyzing trace with hash 889601163, now seen corresponding path program 1 times [2024-11-28 02:13:35,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:13:35,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365056060] [2024-11-28 02:13:35,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:35,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:35,763 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:13:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:35,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:13:35,836 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:13:35,836 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:13:35,836 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:13:35,836 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:13:35,836 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:13:35,836 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:35,836 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:13:35,836 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:13:35,836 INFO L132 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration3_Loop [2024-11-28 02:13:35,836 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:13:35,836 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:13:35,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:35,843 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:35,848 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:35,854 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:35,937 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:13:35,938 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:13:35,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:35,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:35,944 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:35,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-28 02:13:35,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:13:35,948 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:35,979 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:13:35,979 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:13:35,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:35,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:35,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:35,992 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:35,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-28 02:13:35,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:13:35,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:36,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-28 02:13:36,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:36,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:36,021 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:36,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-28 02:13:36,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:13:36,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:36,066 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:13:36,067 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0#1=0} Honda state: {ULTIMATE.start_main_~restmp~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0#1=0}, {ULTIMATE.start_main_~restmp~0#1=5}, {ULTIMATE.start_main_~restmp~0#1=-4}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-11-28 02:13:36,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-28 02:13:36,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:36,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:36,081 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:36,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-28 02:13:36,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:13:36,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:36,119 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:13:36,119 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:13:36,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-28 02:13:36,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:36,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:36,134 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:36,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-28 02:13:36,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:13:36,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:36,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:36,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:36,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:36,175 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:36,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-28 02:13:36,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:13:36,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:36,224 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:13:36,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-28 02:13:36,228 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:13:36,228 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:13:36,229 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:13:36,229 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:13:36,229 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:13:36,229 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:36,229 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:13:36,229 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:13:36,229 INFO L132 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration3_Loop [2024-11-28 02:13:36,229 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:13:36,229 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:13:36,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:36,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:36,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:36,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:36,339 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:13:36,339 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:13:36,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:36,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:36,342 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:36,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-28 02:13:36,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:13:36,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:13:36,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:13:36,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:13:36,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:13:36,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:13:36,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:13:36,383 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:13:36,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:36,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:36,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:36,401 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:36,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-28 02:13:36,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:13:36,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:13:36,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:13:36,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:13:36,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:13:36,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:13:36,424 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:13:36,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:13:36,428 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:13:36,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-28 02:13:36,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:36,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:36,442 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:36,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-28 02:13:36,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:13:36,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:13:36,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:13:36,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:13:36,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:13:36,472 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:13:36,472 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:13:36,484 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:13:36,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:36,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:36,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:36,499 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:36,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-28 02:13:36,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:13:36,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:13:36,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:13:36,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:13:36,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:13:36,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:13:36,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:13:36,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:13:36,537 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:13:36,541 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-28 02:13:36,541 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 02:13:36,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:36,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:36,546 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:36,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-28 02:13:36,548 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:13:36,548 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:13:36,548 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:13:36,548 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2024-11-28 02:13:36,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:36,561 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:13:36,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:36,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:13:36,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:36,605 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:13:36,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:36,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:36,628 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 02:13:36,629 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:36,658 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 30 transitions. Complement of second has 7 states. [2024-11-28 02:13:36,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:13:36,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-11-28 02:13:36,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-28 02:13:36,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:13:36,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-28 02:13:36,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:13:36,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2024-11-28 02:13:36,662 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:13:36,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2024-11-28 02:13:36,663 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:13:36,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 17 states and 20 transitions. [2024-11-28 02:13:36,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-28 02:13:36,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-28 02:13:36,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 20 transitions. [2024-11-28 02:13:36,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:13:36,665 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 20 transitions. [2024-11-28 02:13:36,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 20 transitions. [2024-11-28 02:13:36,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2024-11-28 02:13:36,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:36,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2024-11-28 02:13:36,668 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-11-28 02:13:36,668 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-11-28 02:13:36,668 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 02:13:36,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2024-11-28 02:13:36,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:13:36,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:13:36,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:13:36,672 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 02:13:36,672 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 02:13:36,672 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~xtmp~0#1, main_~res~0#1, main_~restmp~0#1;havoc main_~x~0#1;havoc main_~xtmp~0#1;havoc main_~res~0#1;havoc main_~restmp~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~res~0#1 := 0;" "assume main_~x~0#1 > 1;" "main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0;" "assume main_~xtmp~0#1 > 1;" "main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1;" "assume !(main_~xtmp~0#1 > 1);" "main_~x~0#1 := main_~xtmp~0#1;main_~res~0#1 := 1 + main_~res~0#1;" "assume main_~x~0#1 > 1;" "main_~xtmp~0#1 := main_~x~0#1;main_~restmp~0#1 := 0;" [2024-11-28 02:13:36,672 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~xtmp~0#1 > 1;" "main_~xtmp~0#1 := main_~xtmp~0#1 - 2;main_~restmp~0#1 := 1 + main_~restmp~0#1;" [2024-11-28 02:13:36,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:36,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1757906667, now seen corresponding path program 2 times [2024-11-28 02:13:36,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:13:36,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19543240] [2024-11-28 02:13:36,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:36,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:36,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:13:36,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19543240] [2024-11-28 02:13:36,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19543240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:13:36,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145329208] [2024-11-28 02:13:36,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:36,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:36,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:36,736 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:13:36,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 02:13:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:36,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:13:36,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:36,796 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:13:36,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145329208] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:13:36,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:13:36,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-28 02:13:36,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221886584] [2024-11-28 02:13:36,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:13:36,850 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 02:13:36,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:36,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-28 02:13:36,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1541, now seen corresponding path program 2 times [2024-11-28 02:13:36,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:13:36,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383720842] [2024-11-28 02:13:36,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:36,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:36,858 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:13:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:13:36,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:13:36,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-28 02:13:36,895 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:13:36,895 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:13:36,895 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:13:36,895 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:13:36,895 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:13:36,895 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:36,895 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:13:36,895 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:13:36,896 INFO L132 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration4_Loop [2024-11-28 02:13:36,896 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:13:36,896 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:13:36,897 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:36,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:36,911 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:36,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:36,982 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:13:36,982 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:13:36,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:36,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:36,985 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:36,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-28 02:13:36,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:13:36,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:37,018 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:13:37,018 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:13:37,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:37,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:37,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:37,029 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:37,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-28 02:13:37,036 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:13:37,036 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:37,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-28 02:13:37,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:37,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:37,058 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:37,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-28 02:13:37,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:13:37,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:13:37,087 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:13:37,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-28 02:13:37,090 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:13:37,090 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:13:37,090 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:13:37,090 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:13:37,090 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:13:37,090 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:37,090 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:13:37,090 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:13:37,090 INFO L132 ssoRankerPreferences]: Filename of dumped script: Log.c_Iteration4_Loop [2024-11-28 02:13:37,090 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:13:37,091 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:13:37,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:37,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:37,105 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:37,111 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:13:37,191 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:13:37,192 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:13:37,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:37,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:37,195 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:37,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-28 02:13:37,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:13:37,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:13:37,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:13:37,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:13:37,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:13:37,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:13:37,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:13:37,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:13:37,223 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:13:37,229 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:13:37,229 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 02:13:37,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:13:37,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:37,232 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:37,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-28 02:13:37,236 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:13:37,236 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:13:37,237 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:13:37,237 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2024-11-28 02:13:37,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:37,249 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:13:37,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:37,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:13:37,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:37,322 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:13:37,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:37,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:37,356 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 02:13:37,357 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:37,394 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 23 transitions. Complement of second has 7 states. [2024-11-28 02:13:37,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:13:37,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:37,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-11-28 02:13:37,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 2 letters. [2024-11-28 02:13:37,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:13:37,398 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 02:13:37,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:37,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:13:37,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:37,472 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:13:37,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:37,510 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 02:13:37,510 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:37,544 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 23 transitions. Complement of second has 7 states. [2024-11-28 02:13:37,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:13:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:37,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-11-28 02:13:37,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 2 letters. [2024-11-28 02:13:37,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:13:37,547 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 02:13:37,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:37,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:13:37,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:37,600 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:13:37,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:37,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:13:37,623 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 02:13:37,623 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:37,661 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 20 transitions. Complement of second has 6 states. [2024-11-28 02:13:37,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 02:13:37,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:37,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-28 02:13:37,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2024-11-28 02:13:37,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:13:37,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-28 02:13:37,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:13:37,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-28 02:13:37,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:13:37,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2024-11-28 02:13:37,669 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 02:13:37,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2024-11-28 02:13:37,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 02:13:37,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 02:13:37,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 02:13:37,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:13:37,670 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:13:37,670 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:13:37,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:13:37,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:13:37,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:37,671 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:13:37,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:37,671 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-28 02:13:37,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-28 02:13:37,671 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 02:13:37,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:13:37,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 02:13:37,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 02:13:37,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 02:13:37,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:13:37,671 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:13:37,671 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:13:37,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:13:37,672 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:13:37,672 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 02:13:37,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:13:37,672 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 02:13:37,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-28 02:13:37,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:13:37 BoogieIcfgContainer [2024-11-28 02:13:37,691 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 02:13:37,692 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:13:37,692 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:13:37,693 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:13:37,693 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:33" (3/4) ... [2024-11-28 02:13:37,696 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:13:37,698 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:13:37,702 INFO L158 Benchmark]: Toolchain (without parser) took 4934.27ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 60.0MB in the end (delta: 24.3MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2024-11-28 02:13:37,702 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:13:37,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.44ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 74.3MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:13:37,703 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.28ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 73.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:13:37,703 INFO L158 Benchmark]: Boogie Preprocessor took 39.87ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 72.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:13:37,703 INFO L158 Benchmark]: RCFGBuilder took 293.03ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 64.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:13:37,703 INFO L158 Benchmark]: BuchiAutomizer took 4271.71ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 60.0MB in the end (delta: 3.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2024-11-28 02:13:37,704 INFO L158 Benchmark]: Witness Printer took 5.48ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 60.0MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:13:37,707 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.44ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 74.3MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.28ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 73.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.87ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 72.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 293.03ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 64.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4271.71ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 60.0MB in the end (delta: 3.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Witness Printer took 5.48ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 60.0MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 4 locations. One nondeterministic module has affine ranking function xtmp and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 34 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax172 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq155 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-28 02:13:37,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:37,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:38,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:13:38,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a078f5e0-7d0e-4971-9e91-f6c7d80683dd/bin/uautomizer-verify-aQ6SnzHsRB/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