./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.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_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/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_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/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_66541e0c-2938-4372-818d-19337b36208b/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 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:41:55,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:41:56,123 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 04:41:56,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:41:56,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:41:56,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:41:56,190 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:41:56,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:41:56,191 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:41:56,191 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:41:56,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:41:56,192 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:41:56,192 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:41:56,192 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 04:41:56,192 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 04:41:56,193 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 04:41:56,194 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 04:41:56,194 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 04:41:56,195 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 04:41:56,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:41:56,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 04:41:56,195 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:41:56,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:41:56,196 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 04:41:56,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 04:41:56,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 04:41:56,197 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:41:56,197 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:41:56,197 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 04:41:56,197 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:41:56,197 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:41:56,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:41:56,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:41:56,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:41:56,198 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 04:41:56,198 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 04:41:56,199 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_66541e0c-2938-4372-818d-19337b36208b/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 -> 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 [2024-11-28 04:41:56,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:41:56,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:41:56,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:41:56,617 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:41:56,617 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:41:56,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-11-28 04:42:00,342 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/data/2cdc61ae0/fe9771aab80443bea085aa8f63539c27/FLAG3896f2525 [2024-11-28 04:42:00,706 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:42:00,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-11-28 04:42:00,719 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/data/2cdc61ae0/fe9771aab80443bea085aa8f63539c27/FLAG3896f2525 [2024-11-28 04:42:00,750 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/data/2cdc61ae0/fe9771aab80443bea085aa8f63539c27 [2024-11-28 04:42:00,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:42:00,758 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:42:00,760 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:42:00,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:42:00,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:42:00,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:00" (1/1) ... [2024-11-28 04:42:00,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba99926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:00, skipping insertion in model container [2024-11-28 04:42:00,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:00" (1/1) ... [2024-11-28 04:42:00,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:42:01,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:42:01,022 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:42:01,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:42:01,058 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:42:01,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01 WrapperNode [2024-11-28 04:42:01,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:42:01,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:42:01,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:42:01,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:42:01,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,097 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2024-11-28 04:42:01,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:42:01,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:42:01,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:42:01,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:42:01,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,122 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 04:42:01,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,125 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,127 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:42:01,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:42:01,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:42:01,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:42:01,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (1/1) ... [2024-11-28 04:42:01,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:01,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:01,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:01,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 04:42:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:42:01,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:42:01,349 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:42:01,352 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:42:01,462 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-28 04:42:01,463 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:42:01,473 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:42:01,473 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:42:01,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:01 BoogieIcfgContainer [2024-11-28 04:42:01,474 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:42:01,475 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 04:42:01,475 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 04:42:01,484 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 04:42:01,485 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:42:01,485 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 04:42:00" (1/3) ... [2024-11-28 04:42:01,486 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58dea368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:42:01, skipping insertion in model container [2024-11-28 04:42:01,486 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:42:01,487 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:01" (2/3) ... [2024-11-28 04:42:01,487 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58dea368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:42:01, skipping insertion in model container [2024-11-28 04:42:01,487 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:42:01,487 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:01" (3/3) ... [2024-11-28 04:42:01,488 INFO L363 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-11-28 04:42:01,559 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 04:42:01,560 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 04:42:01,560 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 04:42:01,560 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 04:42:01,560 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 04:42:01,561 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 04:42:01,561 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 04:42:01,561 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 04:42:01,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:01,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 04:42:01,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:42:01,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:42:01,591 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 04:42:01,591 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 04:42:01,591 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 04:42:01,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:01,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 04:42:01,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:42:01,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:42:01,593 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 04:42:01,594 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 04:42:01,600 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" "assume main_~k~0#1 >= 1;main_~i~0#1 := 0;" [2024-11-28 04:42:01,600 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume !(main_~j~0#1 <= main_~i~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-28 04:42:01,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:01,607 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-28 04:42:01,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:42:01,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673703353] [2024-11-28 04:42:01,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:01,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:01,714 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:42:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:01,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:42:01,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:01,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1266379, now seen corresponding path program 1 times [2024-11-28 04:42:01,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:42:01,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303614537] [2024-11-28 04:42:01,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:01,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:01,773 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:42:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:01,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:42:01,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:01,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029100, now seen corresponding path program 1 times [2024-11-28 04:42:01,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:42:01,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072817591] [2024-11-28 04:42:01,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:01,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:01,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:42:01,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072817591] [2024-11-28 04:42:01,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072817591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:01,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476347900] [2024-11-28 04:42:01,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:01,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:42:01,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:01,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:42:01,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:42:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:02,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:42:02,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:02,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:02,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476347900] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:02,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:42:02,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-11-28 04:42:02,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480258327] [2024-11-28 04:42:02,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:02,299 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:42:02,300 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:42:02,301 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:42:02,301 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:42:02,301 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:42:02,301 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:02,302 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:42:02,302 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:42:02,302 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration1_Loop [2024-11-28 04:42:02,302 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:42:02,302 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:42:02,325 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:02,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:02,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:02,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:02,454 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:42:02,455 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:42:02,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:02,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:02,461 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:02,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 04:42:02,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:42:02,471 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:02,512 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:42:02,512 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 04:42:02,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:02,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:02,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:02,524 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:02,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 04:42:02,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:42:02,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:02,561 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:42:02,561 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 04:42:02,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-28 04:42:02,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:02,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:02,578 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:02,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 04:42:02,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:42:02,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:02,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-28 04:42:02,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:02,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:02,625 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:02,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 04:42:02,630 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:42:02,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:02,682 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:42:02,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:02,688 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:42:02,688 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:42:02,688 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:42:02,688 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:42:02,688 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:42:02,688 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:02,689 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:42:02,689 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:42:02,689 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration1_Loop [2024-11-28 04:42:02,689 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:42:02,689 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:42:02,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:02,700 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:02,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:02,725 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:02,813 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:42:02,819 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:42:02,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:02,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:02,823 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:02,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 04:42:02,830 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 04:42:02,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:42:02,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:42:02,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:42:02,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:42:02,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:42:02,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:42:02,871 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:42:02,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-28 04:42:02,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:02,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:02,894 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:02,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 04:42:02,899 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 04:42:02,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:42:02,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:42:02,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:42:02,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:42:02,925 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:42:02,925 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:42:02,941 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:42:02,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-28 04:42:02,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:02,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:02,956 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:02,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 04:42:02,963 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 04:42:02,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:42:02,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:42:02,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:42:02,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:42:02,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:42:02,986 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:42:02,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:42:02,994 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:42:03,001 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:42:03,005 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 04:42:03,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:03,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:03,011 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:03,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 04:42:03,015 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:42:03,016 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:42:03,016 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:42:03,017 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-28 04:42:03,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:03,036 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:42:03,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:03,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:42:03,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:03,122 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:42:03,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:03,206 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 04:42:03,243 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 04:42:03,245 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:03,382 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 55 transitions. Complement of second has 10 states. [2024-11-28 04:42:03,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 04:42:03,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2024-11-28 04:42:03,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-28 04:42:03,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:03,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-28 04:42:03,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:03,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-28 04:42:03,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:03,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 55 transitions. [2024-11-28 04:42:03,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-28 04:42:03,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 21 states and 26 transitions. [2024-11-28 04:42:03,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-28 04:42:03,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-28 04:42:03,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2024-11-28 04:42:03,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:42:03,412 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 26 transitions. [2024-11-28 04:42:03,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2024-11-28 04:42:03,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2024-11-28 04:42:03,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 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 04:42:03,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2024-11-28 04:42:03,471 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-11-28 04:42:03,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:42:03,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:42:03,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:42:03,475 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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 04:42:03,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:03,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:03,531 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2024-11-28 04:42:03,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2024-11-28 04:42:03,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-28 04:42:03,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 11 states and 12 transitions. [2024-11-28 04:42:03,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-28 04:42:03,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-28 04:42:03,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 12 transitions. [2024-11-28 04:42:03,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:42:03,535 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-11-28 04:42:03,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 12 transitions. [2024-11-28 04:42:03,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2024-11-28 04:42:03,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 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 04:42:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2024-11-28 04:42:03,537 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-28 04:42:03,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:42:03,543 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-28 04:42:03,543 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 04:42:03,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2024-11-28 04:42:03,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-28 04:42:03,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:42:03,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:42:03,544 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 04:42:03,544 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:42:03,546 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" "assume main_~k~0#1 >= 1;main_~i~0#1 := 0;" [2024-11-28 04:42:03,546 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := main_~j~0#1 + main_~k~0#1;" "assume !(main_~j~0#1 <= main_~i~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-28 04:42:03,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:03,547 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2024-11-28 04:42:03,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:42:03,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833850513] [2024-11-28 04:42:03,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:03,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:03,557 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:42:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:03,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:42:03,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:03,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1216927535, now seen corresponding path program 1 times [2024-11-28 04:42:03,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:42:03,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127728027] [2024-11-28 04:42:03,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:03,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:03,578 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:42:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:03,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:42:03,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:03,596 INFO L85 PathProgramCache]: Analyzing trace with hash -533885168, now seen corresponding path program 1 times [2024-11-28 04:42:03,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:42:03,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915717181] [2024-11-28 04:42:03,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:03,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:03,611 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:42:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:03,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:42:03,694 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:42:03,694 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:42:03,694 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:42:03,694 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:42:03,694 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:42:03,694 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:03,694 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:42:03,694 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:42:03,694 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration2_Loop [2024-11-28 04:42:03,694 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:42:03,694 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:42:03,696 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:03,703 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:03,711 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:03,715 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:03,808 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:42:03,809 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:42:03,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:03,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:03,812 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:03,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-28 04:42:03,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:42:03,817 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:03,848 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:42:03,848 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 04:42:03,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-28 04:42:03,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:03,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:03,862 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:03,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 04:42:03,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:42:03,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:03,898 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:42:03,898 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 04:42:03,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-28 04:42:03,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:03,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:03,913 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:03,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-28 04:42:03,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:42:03,918 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:03,942 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:42:03,942 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 04:42:03,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:03,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:03,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:03,957 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:03,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-28 04:42:03,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:42:03,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:03,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-28 04:42:03,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:03,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:03,991 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:03,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 04:42:03,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:42:03,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:04,104 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:42:04,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-28 04:42:04,109 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:42:04,109 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:42:04,109 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:42:04,109 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:42:04,109 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:42:04,109 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:04,110 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:42:04,110 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:42:04,110 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration2_Loop [2024-11-28 04:42:04,110 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:42:04,110 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:42:04,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,127 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,228 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:42:04,228 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:42:04,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:04,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:04,233 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:04,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 04:42:04,235 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 04:42:04,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:42:04,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:42:04,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:42:04,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:42:04,253 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:42:04,253 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:42:04,258 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:42:04,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-28 04:42:04,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:04,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:04,269 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:04,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 04:42:04,273 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 04:42:04,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:42:04,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:42:04,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:42:04,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:42:04,294 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:42:04,294 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:42:04,300 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:42:04,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-28 04:42:04,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:04,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:04,311 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:04,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-28 04:42:04,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 04:42:04,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:42:04,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:42:04,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:42:04,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:42:04,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:42:04,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:42:04,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:42:04,340 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:42:04,347 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-28 04:42:04,347 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 04:42:04,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:04,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:04,356 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:04,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-28 04:42:04,358 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:42:04,358 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:42:04,358 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:42:04,359 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-28 04:42:04,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-28 04:42:04,368 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:42:04,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:04,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:42:04,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:04,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:42:04,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:04,477 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 04:42:04,478 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 04:42:04,478 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 04:42:04,521 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) Result 15 states and 18 transitions. Complement of second has 4 states. [2024-11-28 04:42:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 04:42:04,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 04:42:04,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-28 04:42:04,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-28 04:42:04,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:04,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 6 letters. [2024-11-28 04:42:04,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:04,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 12 letters. [2024-11-28 04:42:04,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:04,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2024-11-28 04:42:04,524 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:42:04,524 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 14 states and 17 transitions. [2024-11-28 04:42:04,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-28 04:42:04,525 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-28 04:42:04,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2024-11-28 04:42:04,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:42:04,525 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-11-28 04:42:04,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2024-11-28 04:42:04,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-11-28 04:42:04,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:04,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2024-11-28 04:42:04,527 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-28 04:42:04,527 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-11-28 04:42:04,527 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 04:42:04,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2024-11-28 04:42:04,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:42:04,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:42:04,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:42:04,528 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-28 04:42:04,528 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:42:04,528 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" "assume main_~k~0#1 >= 1;main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" [2024-11-28 04:42:04,528 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := main_~j~0#1 + main_~k~0#1;" [2024-11-28 04:42:04,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:04,528 INFO L85 PathProgramCache]: Analyzing trace with hash 28693894, now seen corresponding path program 1 times [2024-11-28 04:42:04,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:42:04,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367775702] [2024-11-28 04:42:04,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:04,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:04,534 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:42:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:04,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:42:04,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:04,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1637, now seen corresponding path program 1 times [2024-11-28 04:42:04,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:42:04,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811567481] [2024-11-28 04:42:04,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:04,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:04,543 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:42:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:04,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:42:04,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:04,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029034, now seen corresponding path program 1 times [2024-11-28 04:42:04,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:42:04,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562751274] [2024-11-28 04:42:04,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:04,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:04,553 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:42:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:04,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:42:04,659 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:42:04,659 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:42:04,659 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:42:04,659 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:42:04,659 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:42:04,660 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:04,660 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:42:04,660 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:42:04,660 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration3_Lasso [2024-11-28 04:42:04,660 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:42:04,660 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:42:04,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,705 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,709 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,715 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,720 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:04,826 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:42:04,826 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:42:04,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:04,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:04,829 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:04,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-28 04:42:04,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:42:04,834 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:04,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-28 04:42:04,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:04,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:04,873 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:04,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-28 04:42:04,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:42:04,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:05,067 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:42:05,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-28 04:42:05,073 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:42:05,073 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:42:05,073 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:42:05,073 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:42:05,073 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:42:05,074 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:05,074 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:42:05,074 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:42:05,074 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration3_Lasso [2024-11-28 04:42:05,074 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:42:05,074 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:42:05,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,086 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,096 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,129 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,238 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:42:05,238 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:42:05,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:05,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:05,241 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:05,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-28 04:42:05,246 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 04:42:05,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:42:05,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:42:05,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:42:05,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:42:05,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:42:05,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:42:05,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:42:05,268 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:42:05,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:05,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:05,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:05,281 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:05,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-28 04:42:05,284 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 04:42:05,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:42:05,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:42:05,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:42:05,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:42:05,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:42:05,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:42:05,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:42:05,303 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:42:05,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-28 04:42:05,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:05,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:05,317 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:05,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-28 04:42:05,324 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 04:42:05,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:42:05,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:42:05,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:42:05,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:42:05,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:42:05,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:42:05,355 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:42:05,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:05,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:05,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:05,370 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:05,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-28 04:42:05,374 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 04:42:05,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:42:05,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:42:05,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:42:05,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:42:05,396 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:42:05,396 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:42:05,402 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:42:05,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:05,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:05,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:05,417 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:05,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-28 04:42:05,424 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 04:42:05,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:42:05,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:42:05,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:42:05,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:42:05,450 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:42:05,450 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:42:05,461 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:42:05,470 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-28 04:42:05,470 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 04:42:05,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:05,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:05,476 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:05,478 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:42:05,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-28 04:42:05,500 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-11-28 04:42:05,500 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:42:05,500 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~j~0#1) = 2*ULTIMATE.start_main_~i~0#1 - 2*ULTIMATE.start_main_~j~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~k~0#1 - 1 >= 0] [2024-11-28 04:42:05,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-28 04:42:05,516 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-28 04:42:05,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:05,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:42:05,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:05,628 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:42:05,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:05,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:05,724 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 04:42:05,725 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-28 04:42:05,725 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:05,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:05,793 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 29 transitions. Complement of second has 6 states. [2024-11-28 04:42:05,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 04:42:05,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-11-28 04:42:05,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-28 04:42:05,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:05,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-28 04:42:05,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:05,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-28 04:42:05,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:05,796 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2024-11-28 04:42:05,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:42:05,797 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 17 states and 20 transitions. [2024-11-28 04:42:05,797 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-28 04:42:05,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-28 04:42:05,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 20 transitions. [2024-11-28 04:42:05,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:42:05,798 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 20 transitions. [2024-11-28 04:42:05,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 20 transitions. [2024-11-28 04:42:05,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2024-11-28 04:42:05,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 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 04:42:05,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2024-11-28 04:42:05,800 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2024-11-28 04:42:05,800 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2024-11-28 04:42:05,800 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 04:42:05,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2024-11-28 04:42:05,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:42:05,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:42:05,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:42:05,801 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:05,802 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:42:05,802 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" "assume main_~k~0#1 >= 1;main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := main_~j~0#1 + main_~k~0#1;" "assume !(main_~j~0#1 <= main_~i~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" [2024-11-28 04:42:05,802 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := main_~j~0#1 + main_~k~0#1;" [2024-11-28 04:42:05,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:05,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1962537868, now seen corresponding path program 2 times [2024-11-28 04:42:05,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:42:05,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546038960] [2024-11-28 04:42:05,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:05,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:05,813 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:42:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:05,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:42:05,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:05,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1637, now seen corresponding path program 2 times [2024-11-28 04:42:05,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:42:05,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520840823] [2024-11-28 04:42:05,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:05,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:05,826 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:42:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:05,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:42:05,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:05,829 INFO L85 PathProgramCache]: Analyzing trace with hash -508247528, now seen corresponding path program 3 times [2024-11-28 04:42:05,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:42:05,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261558569] [2024-11-28 04:42:05,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:05,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:42:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:05,839 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:42:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:42:05,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:42:05,964 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:42:05,965 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:42:05,965 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:42:05,965 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:42:05,965 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:42:05,965 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:05,965 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:42:05,965 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:42:05,965 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration4_Lasso [2024-11-28 04:42:05,965 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:42:05,965 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:42:05,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,986 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,990 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:05,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,001 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,102 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:42:06,102 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:42:06,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:06,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:06,105 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:06,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-28 04:42:06,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:42:06,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:06,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-28 04:42:06,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:06,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:06,135 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:06,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-28 04:42:06,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:42:06,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:42:06,350 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:42:06,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-28 04:42:06,356 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:42:06,356 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:42:06,356 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:42:06,356 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:42:06,356 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:42:06,356 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:06,356 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:42:06,356 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:42:06,356 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration4_Lasso [2024-11-28 04:42:06,356 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:42:06,356 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:42:06,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,380 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,383 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,388 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,392 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,400 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:42:06,493 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:42:06,493 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:42:06,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:06,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:06,495 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:06,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-28 04:42:06,498 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 04:42:06,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:42:06,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:42:06,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:42:06,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:42:06,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:42:06,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:42:06,534 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:42:06,548 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-28 04:42:06,548 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2024-11-28 04:42:06,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:42:06,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:06,551 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:06,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-28 04:42:06,555 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:42:06,572 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-11-28 04:42:06,573 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:42:06,573 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~k~0#1 - 1 >= 0] [2024-11-28 04:42:06,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-28 04:42:06,587 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-28 04:42:06,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:06,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:42:06,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:06,753 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:42:06,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:06,796 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 04:42:06,797 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-28 04:42:06,797 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:06,860 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 22 transitions. Complement of second has 6 states. [2024-11-28 04:42:06,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 04:42:06,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:06,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-11-28 04:42:06,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 11 letters. Loop has 2 letters. [2024-11-28 04:42:06,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:06,866 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 04:42:06,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:06,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:42:06,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:07,047 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:42:07,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:07,079 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 04:42:07,080 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-28 04:42:07,080 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:07,132 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 22 transitions. Complement of second has 6 states. [2024-11-28 04:42:07,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 04:42:07,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:07,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-11-28 04:42:07,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 11 letters. Loop has 2 letters. [2024-11-28 04:42:07,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:07,135 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 04:42:07,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:07,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:42:07,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:07,294 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:42:07,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:07,327 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 04:42:07,328 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-11-28 04:42:07,328 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:07,387 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 20 transitions. Complement of second has 5 states. [2024-11-28 04:42:07,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-28 04:42:07,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:42:07,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-28 04:42:07,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2024-11-28 04:42:07,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:07,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 13 letters. Loop has 2 letters. [2024-11-28 04:42:07,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:07,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 4 letters. [2024-11-28 04:42:07,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:42:07,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2024-11-28 04:42:07,391 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 04:42:07,391 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2024-11-28 04:42:07,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 04:42:07,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 04:42:07,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 04:42:07,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:42:07,392 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:42:07,392 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:42:07,392 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:42:07,392 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 04:42:07,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:42:07,393 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 04:42:07,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-28 04:42:07,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 04:42:07 BoogieIcfgContainer [2024-11-28 04:42:07,404 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 04:42:07,405 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:42:07,405 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:42:07,406 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:42:07,407 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:01" (3/4) ... [2024-11-28 04:42:07,409 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:42:07,411 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:42:07,415 INFO L158 Benchmark]: Toolchain (without parser) took 6655.04ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 48.2MB in the end (delta: 58.7MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2024-11-28 04:42:07,416 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 167.8MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:42:07,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.67ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 97.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:42:07,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.28ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 96.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:42:07,417 INFO L158 Benchmark]: Boogie Preprocessor took 45.53ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 95.1MB in the end (delta: 972.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:42:07,417 INFO L158 Benchmark]: RCFGBuilder took 328.42ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 86.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:42:07,417 INFO L158 Benchmark]: BuchiAutomizer took 5929.24ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 48.3MB in the end (delta: 37.8MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2024-11-28 04:42:07,418 INFO L158 Benchmark]: Witness Printer took 5.63ms. Allocated memory is still 142.6MB. Free memory was 48.3MB in the beginning and 48.2MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:42:07,422 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 167.8MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.67ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 97.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.28ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 96.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.53ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 95.1MB in the end (delta: 972.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 328.42ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 86.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5929.24ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 48.3MB in the end (delta: 37.8MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * Witness Printer took 5.63ms. Allocated memory is still 142.6MB. Free memory was 48.3MB in the beginning and 48.2MB in the end (delta: 36.9kB). 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 (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((long) -1 * i) and consists of 6 locations. One deterministic module has affine ranking function (((long) -1 * i) + n) and consists of 3 locations. One deterministic module has affine ranking function ((((long) -2 * j) + ((long) 2 * i)) + 1) and consists of 4 locations. One nondeterministic module has affine ranking function ((((long) -2 * j) + ((long) 2 * i)) + 1) and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.0s. Construction of modules took 0.1s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 4 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 40 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax159 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 51ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s 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 04:42:07,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:07,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:07,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66541e0c-2938-4372-818d-19337b36208b/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