./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_13.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU --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 eeea679d58a502ae5881094604c1f31424fa081cb4c3d3de58dd4530f33f3571 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:07:22,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:07:22,554 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:07:22,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:07:22,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:07:22,607 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:07:22,608 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:07:22,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:07:22,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:07:22,611 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:07:22,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:07:22,613 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:07:22,613 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:07:22,613 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:07:22,616 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:07:22,617 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:07:22,618 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:07:22,635 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:07:22,636 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:07:22,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:07:22,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:07:22,638 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:07:22,639 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:07:22,639 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:07:22,640 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:07:22,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:07:22,640 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:07:22,641 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:07:22,641 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:07:22,642 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:07:22,642 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:07:22,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:07:22,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:07:22,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:07:22,643 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:07:22,644 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:07:22,644 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eeea679d58a502ae5881094604c1f31424fa081cb4c3d3de58dd4530f33f3571 [2024-10-31 22:07:22,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:07:23,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:07:23,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:07:23,008 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:07:23,009 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:07:23,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-restricted-15/NO_13.c Unable to find full path for "g++" [2024-10-31 22:07:25,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:07:25,567 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:07:25,569 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/sv-benchmarks/c/termination-restricted-15/NO_13.c [2024-10-31 22:07:25,576 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/data/f9b9dadd7/fe2587146e9044518154a5041efaad97/FLAG9e0b84ea5 [2024-10-31 22:07:25,953 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/data/f9b9dadd7/fe2587146e9044518154a5041efaad97 [2024-10-31 22:07:25,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:07:25,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:07:25,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:25,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:07:25,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:07:25,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:25" (1/1) ... [2024-10-31 22:07:25,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24edfd09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:25, skipping insertion in model container [2024-10-31 22:07:25,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:25" (1/1) ... [2024-10-31 22:07:26,010 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:07:26,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:26,328 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:07:26,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:26,360 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:07:26,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26 WrapperNode [2024-10-31 22:07:26,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:26,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:26,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:07:26,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:07:26,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,389 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2024-10-31 22:07:26,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:26,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:07:26,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:07:26,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:07:26,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,403 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,410 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:07:26,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:07:26,421 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:07:26,421 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:07:26,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:07:26,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:26,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:26,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:26,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:07:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:07:26,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:07:26,570 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:07:26,573 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:07:26,637 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-10-31 22:07:26,638 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:07:26,655 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:07:26,656 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:07:26,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:26 BoogieIcfgContainer [2024-10-31 22:07:26,657 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:07:26,658 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:07:26,658 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:07:26,663 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:07:26,664 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:07:26,664 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:07:25" (1/3) ... [2024-10-31 22:07:26,666 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f809ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:07:26, skipping insertion in model container [2024-10-31 22:07:26,666 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:07:26,667 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (2/3) ... [2024-10-31 22:07:26,668 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f809ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:07:26, skipping insertion in model container [2024-10-31 22:07:26,669 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:07:26,669 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:26" (3/3) ... [2024-10-31 22:07:26,672 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_13.c [2024-10-31 22:07:26,746 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:07:26,747 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:07:26,747 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:07:26,747 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:07:26,747 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:07:26,747 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:07:26,747 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:07:26,748 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:07:26,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:26,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:26,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:26,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:26,774 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:07:26,775 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:07:26,775 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:07:26,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:26,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:26,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:26,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:26,777 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:07:26,777 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:07:26,787 INFO L745 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 2#L12-2true [2024-10-31 22:07:26,788 INFO L747 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~i~0#1 < main_~j~0#1); 8#L12true assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2#L12-2true [2024-10-31 22:07:26,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:26,795 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:07:26,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:26,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556040512] [2024-10-31 22:07:26,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:26,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:26,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:26,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:26,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:26,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-10-31 22:07:26,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:26,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902489798] [2024-10-31 22:07:26,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:26,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:26,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:27,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:27,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:27,004 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-10-31 22:07:27,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:27,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853762736] [2024-10-31 22:07:27,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:27,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:27,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:27,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853762736] [2024-10-31 22:07:27,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853762736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:27,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:27,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:27,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157789045] [2024-10-31 22:07:27,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:27,289 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:27,290 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:27,290 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:27,291 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:27,291 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:07:27,291 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:27,291 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:27,291 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:27,291 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration1_Loop [2024-10-31 22:07:27,292 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:27,292 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:27,318 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:27,333 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:27,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:27,481 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:27,482 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:07:27,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:27,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:27,489 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:27,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:07:27,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:27,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:27,526 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:27,527 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: [] [2024-10-31 22:07:27,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:27,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:27,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:27,550 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:27,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:07:27,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:27,558 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:27,585 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:27,585 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: [] [2024-10-31 22:07:27,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 22:07:27,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:27,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:27,608 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:27,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:07:27,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:27,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:27,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:27,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:27,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:27,642 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:27,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:07:27,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:07:27,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:27,686 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:07:27,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 22:07:27,691 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:27,692 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:27,692 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:27,692 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:27,692 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:07:27,692 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:27,692 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:27,693 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:27,693 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration1_Loop [2024-10-31 22:07:27,693 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:27,693 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:27,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:27,711 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:27,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:27,858 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:27,863 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:07:27,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:27,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:27,870 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:27,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:07:27,875 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 [2024-10-31 22:07:27,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:27,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:27,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:27,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:27,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:07:27,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:07:27,909 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:07:27,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 22:07:27,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:27,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:27,934 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:27,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:07:27,937 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 [2024-10-31 22:07:27,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:27,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:27,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:27,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:27,959 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:07:27,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:07:27,967 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:07:27,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:07:27,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:27,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:27,990 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:27,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:07:27,992 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 [2024-10-31 22:07:28,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:28,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:28,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:28,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:28,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:28,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:28,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:28,016 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:07:28,021 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:07:28,021 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:07:28,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:28,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:28,031 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:28,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:07:28,035 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:07:28,035 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:07:28,035 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:07:28,036 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2024-10-31 22:07:28,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 22:07:28,065 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:07:28,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:28,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:07:28,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:28,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:28,201 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:28,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:28,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:28,260 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:07:28,263 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:28,320 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 24 transitions. Complement of second has 6 states. [2024-10-31 22:07:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:07:28,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:28,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-10-31 22:07:28,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2024-10-31 22:07:28,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:28,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-31 22:07:28,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:28,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-31 22:07:28,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:28,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2024-10-31 22:07:28,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:28,340 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 8 states and 11 transitions. [2024-10-31 22:07:28,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:07:28,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-31 22:07:28,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-10-31 22:07:28,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:28,343 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-10-31 22:07:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-10-31 22:07:28,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-10-31 22:07:28,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:28,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-10-31 22:07:28,375 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-10-31 22:07:28,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:28,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:28,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:28,380 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:28,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:28,395 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2024-10-31 22:07:28,395 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2024-10-31 22:07:28,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:28,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2024-10-31 22:07:28,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-31 22:07:28,396 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-31 22:07:28,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2024-10-31 22:07:28,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:07:28,397 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2024-10-31 22:07:28,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2024-10-31 22:07:28,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2024-10-31 22:07:28,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:28,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2024-10-31 22:07:28,400 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2024-10-31 22:07:28,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:28,402 INFO L425 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2024-10-31 22:07:28,402 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:07:28,402 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2024-10-31 22:07:28,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:28,403 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:28,403 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:28,404 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:07:28,404 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:07:28,404 INFO L745 eck$LassoCheckResult]: Stem: 78#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 79#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 80#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 81#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 76#L12-2 [2024-10-31 22:07:28,404 INFO L747 eck$LassoCheckResult]: Loop: 76#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 77#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 76#L12-2 [2024-10-31 22:07:28,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:28,406 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-10-31 22:07:28,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:28,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135219979] [2024-10-31 22:07:28,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:28,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:28,415 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:28,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:28,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:28,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2024-10-31 22:07:28,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:28,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145850483] [2024-10-31 22:07:28,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:28,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:28,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:28,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:28,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:28,433 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2024-10-31 22:07:28,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:28,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231724892] [2024-10-31 22:07:28,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:28,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:28,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:28,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:28,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231724892] [2024-10-31 22:07:28,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231724892] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:07:28,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700915190] [2024-10-31 22:07:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:28,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:07:28,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:28,536 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:07:28,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 22:07:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:28,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:07:28,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:28,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:07:28,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:28,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700915190] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:07:28,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:07:28,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-31 22:07:28,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26127053] [2024-10-31 22:07:28,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:07:28,690 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:28,690 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:28,690 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:28,690 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:28,690 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:07:28,690 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:28,691 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:28,691 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:28,691 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration2_Loop [2024-10-31 22:07:28,691 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:28,691 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:28,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:28,700 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:28,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:28,792 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:28,792 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:07:28,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:28,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:28,795 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:28,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:07:28,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:28,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:28,827 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:28,827 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: [] [2024-10-31 22:07:28,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 22:07:28,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:28,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:28,852 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:28,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:07:28,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:28,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:28,891 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:28,891 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: [] [2024-10-31 22:07:28,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:07:28,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:28,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:28,916 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:28,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:07:28,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:28,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:28,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:07:28,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:28,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:28,982 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:28,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:07:28,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:07:28,992 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:29,102 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:07:29,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:07:29,112 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:29,116 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:29,116 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:29,116 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:29,116 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:07:29,116 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:29,117 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:29,117 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:29,117 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration2_Loop [2024-10-31 22:07:29,117 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:29,117 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:29,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:29,144 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:29,162 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:29,287 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:29,287 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:07:29,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:29,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:29,289 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:29,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:07:29,292 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 [2024-10-31 22:07:29,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:29,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:29,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:29,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:29,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:07:29,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:07:29,319 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:07:29,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:07:29,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:29,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:29,342 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:29,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:07:29,345 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 [2024-10-31 22:07:29,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:29,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:29,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:29,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:29,368 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:07:29,368 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:07:29,374 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:07:29,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:07:29,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:29,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:29,397 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:29,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:07:29,400 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 [2024-10-31 22:07:29,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:29,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:29,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:29,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:29,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:29,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:29,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:29,422 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:07:29,430 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:07:29,430 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:07:29,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:29,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:29,433 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:29,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:07:29,441 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:07:29,441 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:07:29,441 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:07:29,441 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2024-10-31 22:07:29,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-31 22:07:29,463 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:07:29,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:29,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:29,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:29,515 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:29,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:29,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:29,520 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:07:29,521 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:29,537 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 5 states. [2024-10-31 22:07:29,539 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 [2024-10-31 22:07:29,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:29,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-10-31 22:07:29,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-31 22:07:29,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:29,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-31 22:07:29,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:29,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2024-10-31 22:07:29,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:29,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2024-10-31 22:07:29,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:29,546 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2024-10-31 22:07:29,547 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-10-31 22:07:29,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-31 22:07:29,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2024-10-31 22:07:29,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:29,547 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-10-31 22:07:29,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2024-10-31 22:07:29,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-10-31 22:07:29,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:29,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2024-10-31 22:07:29,550 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-10-31 22:07:29,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:29,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:07:29,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:07:29,552 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:29,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:29,590 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2024-10-31 22:07:29,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2024-10-31 22:07:29,591 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:29,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 13 transitions. [2024-10-31 22:07:29,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-31 22:07:29,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-31 22:07:29,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2024-10-31 22:07:29,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:07:29,592 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-10-31 22:07:29,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2024-10-31 22:07:29,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-31 22:07:29,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:29,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2024-10-31 22:07:29,595 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-10-31 22:07:29,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:07:29,596 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-10-31 22:07:29,596 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:07:29,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2024-10-31 22:07:29,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:07:29,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:29,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:29,598 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1] [2024-10-31 22:07:29,598 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:07:29,598 INFO L745 eck$LassoCheckResult]: Stem: 188#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 189#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 190#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 191#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 186#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 187#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 197#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 196#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 195#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 194#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 193#L12-2 [2024-10-31 22:07:29,598 INFO L747 eck$LassoCheckResult]: Loop: 193#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 192#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 193#L12-2 [2024-10-31 22:07:29,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:29,599 INFO L85 PathProgramCache]: Analyzing trace with hash 742492623, now seen corresponding path program 2 times [2024-10-31 22:07:29,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:29,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344980109] [2024-10-31 22:07:29,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:29,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:29,615 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:29,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:29,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:29,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2024-10-31 22:07:29,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:29,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943306950] [2024-10-31 22:07:29,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:29,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:29,650 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:29,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:29,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:29,660 INFO L85 PathProgramCache]: Analyzing trace with hash 570839924, now seen corresponding path program 2 times [2024-10-31 22:07:29,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:29,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920342652] [2024-10-31 22:07:29,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:29,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:29,790 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:29,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:29,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920342652] [2024-10-31 22:07:29,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920342652] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:07:29,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553205748] [2024-10-31 22:07:29,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:07:29,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:07:29,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:29,793 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:07:29,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-31 22:07:29,847 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:07:29,847 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:07:29,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:07:29,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:29,893 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:29,893 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:07:29,989 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:29,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553205748] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:07:29,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:07:29,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-10-31 22:07:29,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217311642] [2024-10-31 22:07:29,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:07:30,027 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:30,027 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:30,027 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:30,027 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:30,028 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:07:30,028 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:30,028 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:30,028 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:30,028 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration3_Loop [2024-10-31 22:07:30,028 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:30,028 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:30,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:30,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:30,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:30,104 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:30,104 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:07:30,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:30,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:30,107 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:30,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:07:30,119 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:30,119 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:30,145 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:07:30,145 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:07:30,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:30,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:30,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:30,166 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:30,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:07:30,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:30,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:30,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:07:30,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:30,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:30,209 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:30,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:07:30,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:07:30,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:30,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 22:07:30,293 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:07:30,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:30,297 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:30,298 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:30,298 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:30,298 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:30,298 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:07:30,298 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:30,298 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:30,298 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:30,298 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration3_Loop [2024-10-31 22:07:30,298 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:30,298 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:30,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:30,307 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:30,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:30,385 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:30,385 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:07:30,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:30,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:30,388 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:30,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:07:30,391 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 [2024-10-31 22:07:30,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:30,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:30,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:30,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:30,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:07:30,412 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:07:30,417 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:07:30,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-10-31 22:07:30,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:30,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:30,440 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:30,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:07:30,442 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 [2024-10-31 22:07:30,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:30,457 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:30,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:30,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:30,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:30,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:30,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:30,464 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:07:30,470 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:07:30,470 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:07:30,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:30,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:30,472 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:30,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:07:30,475 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:07:30,475 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:07:30,476 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:07:30,476 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 103 Supporting invariants [] [2024-10-31 22:07:30,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:30,496 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:07:30,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:30,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:30,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:30,556 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:30,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:30,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:30,561 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:07:30,561 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2024-10-31 22:07:30,571 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 13 states and 14 transitions. Complement of second has 5 states. [2024-10-31 22:07:30,571 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 [2024-10-31 22:07:30,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2024-10-31 22:07:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-10-31 22:07:30,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2024-10-31 22:07:30,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:30,573 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:07:30,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:30,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:30,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:30,628 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:30,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:30,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:30,633 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:07:30,634 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2024-10-31 22:07:30,643 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 13 states and 14 transitions. Complement of second has 5 states. [2024-10-31 22:07:30,643 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 [2024-10-31 22:07:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2024-10-31 22:07:30,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-10-31 22:07:30,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 10 letters. Loop has 2 letters. [2024-10-31 22:07:30,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:30,645 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:07:30,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:30,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:30,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:30,702 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:30,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:30,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:30,707 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:07:30,707 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2024-10-31 22:07:30,724 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 17 states and 19 transitions. Complement of second has 4 states. [2024-10-31 22:07:30,725 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 [2024-10-31 22:07:30,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2024-10-31 22:07:30,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-10-31 22:07:30,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2024-10-31 22:07:30,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:30,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 12 letters. Loop has 2 letters. [2024-10-31 22:07:30,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:30,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 4 letters. [2024-10-31 22:07:30,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:30,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2024-10-31 22:07:30,731 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:07:30,731 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 16 transitions. [2024-10-31 22:07:30,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-31 22:07:30,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-31 22:07:30,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2024-10-31 22:07:30,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:30,732 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-10-31 22:07:30,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2024-10-31 22:07:30,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-10-31 22:07:30,734 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) [2024-10-31 22:07:30,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2024-10-31 22:07:30,735 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2024-10-31 22:07:30,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:30,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:07:30,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:07:30,737 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 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) [2024-10-31 22:07:30,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:30,809 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2024-10-31 22:07:30,809 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 34 transitions. [2024-10-31 22:07:30,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:07:30,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 28 transitions. [2024-10-31 22:07:30,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2024-10-31 22:07:30,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2024-10-31 22:07:30,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 28 transitions. [2024-10-31 22:07:30,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:30,812 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-10-31 22:07:30,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 28 transitions. [2024-10-31 22:07:30,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2024-10-31 22:07:30,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.08) internal successors, (27), 24 states have internal predecessors, (27), 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) [2024-10-31 22:07:30,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2024-10-31 22:07:30,815 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 27 transitions. [2024-10-31 22:07:30,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:07:30,816 INFO L425 stractBuchiCegarLoop]: Abstraction has 25 states and 27 transitions. [2024-10-31 22:07:30,816 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:07:30,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 27 transitions. [2024-10-31 22:07:30,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:07:30,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:30,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:30,818 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 9, 1, 1] [2024-10-31 22:07:30,818 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:07:30,819 INFO L745 eck$LassoCheckResult]: Stem: 501#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 502#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 503#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 504#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 496#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 497#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 520#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 519#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 518#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 517#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 516#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 515#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 514#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 513#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 512#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 511#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 510#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 509#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 508#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 507#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 506#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 500#L12 [2024-10-31 22:07:30,819 INFO L747 eck$LassoCheckResult]: Loop: 500#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 505#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 500#L12 [2024-10-31 22:07:30,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:30,819 INFO L85 PathProgramCache]: Analyzing trace with hash -926509747, now seen corresponding path program 3 times [2024-10-31 22:07:30,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:30,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57823082] [2024-10-31 22:07:30,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:30,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:30,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:30,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:30,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:30,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2024-10-31 22:07:30,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:30,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379801673] [2024-10-31 22:07:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:30,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:30,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:30,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:30,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:30,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1317636150, now seen corresponding path program 4 times [2024-10-31 22:07:30,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:30,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058137126] [2024-10-31 22:07:30,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:30,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:30,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:30,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:30,947 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:30,947 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:30,948 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:30,948 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:30,948 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:07:30,948 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:30,948 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:30,948 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:30,949 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration4_Loop [2024-10-31 22:07:30,949 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:30,949 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:30,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:30,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:30,968 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:31,037 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:31,038 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:07:31,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:31,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:31,040 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:31,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:07:31,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:31,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:31,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:31,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:31,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:31,088 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:31,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:07:31,091 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:07:31,091 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:31,143 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:07:31,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:31,147 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:31,148 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:31,148 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:31,148 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:31,148 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:07:31,148 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:31,148 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:31,148 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:31,149 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration4_Loop [2024-10-31 22:07:31,149 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:31,149 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:31,151 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:31,165 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:31,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:31,239 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:31,239 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:07:31,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:31,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:31,244 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:31,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:07:31,246 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 [2024-10-31 22:07:31,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:31,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:31,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:31,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:31,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:31,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:31,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:31,267 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:07:31,271 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:07:31,271 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:07:31,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:31,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:31,274 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:31,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:07:31,277 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:07:31,277 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:07:31,277 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:07:31,277 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2024-10-31 22:07:31,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:31,297 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:07:31,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:31,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:31,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:31,395 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:31,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:31,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:31,422 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 [2024-10-31 22:07:31,422 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 27 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2024-10-31 22:07:31,436 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 27 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 38 states and 42 transitions. Complement of second has 5 states. [2024-10-31 22:07:31,436 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 [2024-10-31 22:07:31,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2024-10-31 22:07:31,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-10-31 22:07:31,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 2 letters. [2024-10-31 22:07:31,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:31,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 23 letters. Loop has 2 letters. [2024-10-31 22:07:31,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:31,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 21 letters. Loop has 4 letters. [2024-10-31 22:07:31,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:31,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 42 transitions. [2024-10-31 22:07:31,442 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:07:31,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 28 states and 31 transitions. [2024-10-31 22:07:31,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-10-31 22:07:31,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-10-31 22:07:31,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 31 transitions. [2024-10-31 22:07:31,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:31,443 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 31 transitions. [2024-10-31 22:07:31,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 31 transitions. [2024-10-31 22:07:31,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-10-31 22:07:31,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:31,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2024-10-31 22:07:31,446 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 30 transitions. [2024-10-31 22:07:31,446 INFO L425 stractBuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2024-10-31 22:07:31,446 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:07:31,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2024-10-31 22:07:31,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:07:31,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:31,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:31,448 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [12, 10, 1, 1, 1] [2024-10-31 22:07:31,448 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:07:31,448 INFO L745 eck$LassoCheckResult]: Stem: 652#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 653#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 648#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 649#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 654#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 655#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 650#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 651#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 674#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 673#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 672#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 671#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 670#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 669#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 668#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 667#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 666#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 665#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 664#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 663#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 662#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 661#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 660#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 657#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 656#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 658#L12 [2024-10-31 22:07:31,448 INFO L747 eck$LassoCheckResult]: Loop: 658#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 659#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 658#L12 [2024-10-31 22:07:31,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:31,449 INFO L85 PathProgramCache]: Analyzing trace with hash 767012677, now seen corresponding path program 3 times [2024-10-31 22:07:31,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:31,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762504884] [2024-10-31 22:07:31,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:31,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:31,725 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:31,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:31,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762504884] [2024-10-31 22:07:31,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762504884] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:07:31,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145956226] [2024-10-31 22:07:31,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:07:31,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:07:31,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:31,729 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:07:31,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-31 22:07:31,777 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-10-31 22:07:31,778 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:07:31,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:07:31,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:31,840 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:07:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 11 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:32,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145956226] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:07:32,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:07:32,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2024-10-31 22:07:32,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404318984] [2024-10-31 22:07:32,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:07:32,132 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:07:32,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:32,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2024-10-31 22:07:32,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:32,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105797858] [2024-10-31 22:07:32,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:32,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:32,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:32,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:32,165 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:32,165 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:32,166 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:32,166 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:32,166 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:07:32,166 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:32,166 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:32,166 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:32,166 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration5_Loop [2024-10-31 22:07:32,166 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:32,166 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:32,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:32,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:32,181 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:32,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-31 22:07:32,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-10-31 22:07:32,283 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:32,285 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:07:32,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:32,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:32,288 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:32,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:07:32,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:07:32,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:32,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:32,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:32,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:32,327 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:32,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 22:07:32,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:07:32,337 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:07:32,382 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:07:32,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:32,386 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:07:32,386 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:07:32,386 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:07:32,386 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:07:32,386 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:07:32,387 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:32,387 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:07:32,387 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:07:32,387 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_13.c_Iteration5_Loop [2024-10-31 22:07:32,387 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:07:32,387 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:07:32,389 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:32,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:32,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:07:32,456 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:07:32,456 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:07:32,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:32,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:32,458 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:32,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:07:32,461 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 [2024-10-31 22:07:32,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:07:32,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:07:32,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:07:32,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:07:32,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:07:32,481 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:07:32,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:07:32,485 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:07:32,488 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:07:32,488 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:07:32,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:32,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:32,491 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:32,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:07:32,492 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:07:32,493 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:07:32,493 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:07:32,493 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2024-10-31 22:07:32,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-10-31 22:07:32,518 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:07:32,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:32,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:32,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:32,600 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:32,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:32,618 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 [2024-10-31 22:07:32,618 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:32,633 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 42 transitions. Complement of second has 5 states. [2024-10-31 22:07:32,634 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 [2024-10-31 22:07:32,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:32,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-10-31 22:07:32,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 25 letters. Loop has 2 letters. [2024-10-31 22:07:32,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:32,637 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:07:32,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:32,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:32,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:32,717 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:32,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:32,736 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:07:32,736 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:32,756 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 43 transitions. Complement of second has 5 states. [2024-10-31 22:07:32,757 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 [2024-10-31 22:07:32,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:32,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-10-31 22:07:32,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 25 letters. Loop has 2 letters. [2024-10-31 22:07:32,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:32,758 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:07:32,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:32,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:07:32,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:32,838 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:07:32,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:32,857 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:07:32,857 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:32,871 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 45 transitions. Complement of second has 4 states. [2024-10-31 22:07:32,872 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 [2024-10-31 22:07:32,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:32,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-31 22:07:32,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 2 letters. [2024-10-31 22:07:32,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:32,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 27 letters. Loop has 2 letters. [2024-10-31 22:07:32,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:32,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 25 letters. Loop has 4 letters. [2024-10-31 22:07:32,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:07:32,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 45 transitions. [2024-10-31 22:07:32,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:07:32,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 29 states and 32 transitions. [2024-10-31 22:07:32,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:07:32,878 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-31 22:07:32,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 32 transitions. [2024-10-31 22:07:32,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:32,878 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 32 transitions. [2024-10-31 22:07:32,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 32 transitions. [2024-10-31 22:07:32,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2024-10-31 22:07:32,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 25 states have internal predecessors, (28), 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) [2024-10-31 22:07:32,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-10-31 22:07:32,882 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-10-31 22:07:32,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:32,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-31 22:07:32,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-10-31 22:07:32,886 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 24 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 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) [2024-10-31 22:07:33,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:33,002 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2024-10-31 22:07:33,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 65 transitions. [2024-10-31 22:07:33,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:07:33,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 51 states and 53 transitions. [2024-10-31 22:07:33,007 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:07:33,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-31 22:07:33,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 53 transitions. [2024-10-31 22:07:33,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:33,008 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 53 transitions. [2024-10-31 22:07:33,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 53 transitions. [2024-10-31 22:07:33,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2024-10-31 22:07:33,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.04) internal successors, (52), 49 states have internal predecessors, (52), 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) [2024-10-31 22:07:33,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2024-10-31 22:07:33,013 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 52 transitions. [2024-10-31 22:07:33,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-31 22:07:33,014 INFO L425 stractBuchiCegarLoop]: Abstraction has 50 states and 52 transitions. [2024-10-31 22:07:33,015 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:07:33,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 52 transitions. [2024-10-31 22:07:33,016 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:07:33,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:33,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:33,017 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [24, 22, 1, 1, 1] [2024-10-31 22:07:33,017 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-10-31 22:07:33,018 INFO L745 eck$LassoCheckResult]: Stem: 1321#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1322#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 1317#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1318#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1323#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1324#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1319#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1320#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1366#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1365#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1364#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1363#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1362#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1361#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1360#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1359#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1358#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1357#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1356#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1355#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1354#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1353#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1352#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1351#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1350#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1349#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1348#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1347#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1346#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1345#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1344#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1343#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1342#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1341#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1340#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1339#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1338#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1337#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1336#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1335#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1334#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1333#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1332#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1331#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1330#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1329#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1328#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1326#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1325#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1327#L12 [2024-10-31 22:07:33,018 INFO L747 eck$LassoCheckResult]: Loop: 1327#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1328#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1326#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1325#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1327#L12 [2024-10-31 22:07:33,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:33,018 INFO L85 PathProgramCache]: Analyzing trace with hash -694298463, now seen corresponding path program 4 times [2024-10-31 22:07:33,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:33,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933861479] [2024-10-31 22:07:33,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:33,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:33,658 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:33,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:33,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933861479] [2024-10-31 22:07:33,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933861479] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:07:33,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268479700] [2024-10-31 22:07:33,659 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 22:07:33,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:07:33,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:33,661 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:07:33,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-10-31 22:07:33,730 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 22:07:33,730 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:07:33,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-31 22:07:33,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:33,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-10-31 22:07:33,901 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:33,902 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:07:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 23 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:35,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268479700] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:07:35,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:07:35,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2024-10-31 22:07:35,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435238888] [2024-10-31 22:07:35,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:07:35,036 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:07:35,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:35,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 1 times [2024-10-31 22:07:35,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:35,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330213717] [2024-10-31 22:07:35,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:35,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:35,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:35,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:35,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:35,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-31 22:07:35,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-10-31 22:07:35,115 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. cyclomatic complexity: 3 Second operand has 48 states, 48 states have (on average 2.0) internal successors, (96), 48 states have internal predecessors, (96), 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) [2024-10-31 22:07:35,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:35,343 INFO L93 Difference]: Finished difference Result 123 states and 125 transitions. [2024-10-31 22:07:35,343 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 125 transitions. [2024-10-31 22:07:35,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:07:35,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 99 states and 101 transitions. [2024-10-31 22:07:35,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:07:35,346 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-31 22:07:35,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 101 transitions. [2024-10-31 22:07:35,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:35,347 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 101 transitions. [2024-10-31 22:07:35,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 101 transitions. [2024-10-31 22:07:35,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2024-10-31 22:07:35,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.0204081632653061) internal successors, (100), 97 states have internal predecessors, (100), 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) [2024-10-31 22:07:35,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2024-10-31 22:07:35,353 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 100 transitions. [2024-10-31 22:07:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-31 22:07:35,358 INFO L425 stractBuchiCegarLoop]: Abstraction has 98 states and 100 transitions. [2024-10-31 22:07:35,358 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:07:35,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 100 transitions. [2024-10-31 22:07:35,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:07:35,359 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:35,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:35,365 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [48, 46, 1, 1, 1] [2024-10-31 22:07:35,365 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-10-31 22:07:35,366 INFO L745 eck$LassoCheckResult]: Stem: 1833#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1834#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 1829#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1830#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1835#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1836#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1831#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1832#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1926#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1925#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1924#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1923#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1922#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1921#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1920#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1919#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1918#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1917#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1916#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1915#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1914#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1913#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1912#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1911#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1910#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1909#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1908#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1907#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1906#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1905#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1904#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1903#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1902#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1901#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1900#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1899#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1898#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1897#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1896#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1895#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1894#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1893#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1892#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1891#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1890#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1889#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1888#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1887#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1886#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1885#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1884#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1883#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1882#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1881#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1880#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1879#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1878#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1877#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1876#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1875#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1874#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1873#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1872#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1871#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1870#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1869#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1868#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1867#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1866#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1865#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1864#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1863#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1862#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1861#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1860#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1859#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1858#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1857#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1856#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1855#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1854#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1853#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1852#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1851#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1850#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1849#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1848#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1847#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1846#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1845#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1844#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1843#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1842#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1841#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1840#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1838#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1837#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1839#L12 [2024-10-31 22:07:35,366 INFO L747 eck$LassoCheckResult]: Loop: 1839#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 1840#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1838#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 1837#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 1839#L12 [2024-10-31 22:07:35,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:35,367 INFO L85 PathProgramCache]: Analyzing trace with hash -818401447, now seen corresponding path program 5 times [2024-10-31 22:07:35,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:35,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42316766] [2024-10-31 22:07:35,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:35,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:37,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:37,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:37,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42316766] [2024-10-31 22:07:37,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42316766] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:07:37,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648740699] [2024-10-31 22:07:37,983 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-31 22:07:37,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:07:37,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:37,991 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:07:37,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-10-31 22:07:38,165 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2024-10-31 22:07:38,165 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:07:38,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-31 22:07:38,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:07:38,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:38,437 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:07:40,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2209 backedges. 47 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:40,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648740699] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:07:40,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:07:40,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 51 [2024-10-31 22:07:40,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844862999] [2024-10-31 22:07:40,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:07:40,306 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:07:40,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:40,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2024-10-31 22:07:40,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:40,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482292104] [2024-10-31 22:07:40,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:40,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:40,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:40,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:40,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:40,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-10-31 22:07:40,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2024-10-31 22:07:40,388 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. cyclomatic complexity: 3 Second operand has 51 states, 51 states have (on average 2.019607843137255) internal successors, (103), 51 states have internal predecessors, (103), 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) [2024-10-31 22:07:40,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:07:40,616 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2024-10-31 22:07:40,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 110 transitions. [2024-10-31 22:07:40,617 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:07:40,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 105 states and 107 transitions. [2024-10-31 22:07:40,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:07:40,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-31 22:07:40,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 107 transitions. [2024-10-31 22:07:40,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:07:40,620 INFO L218 hiAutomatonCegarLoop]: Abstraction has 105 states and 107 transitions. [2024-10-31 22:07:40,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 107 transitions. [2024-10-31 22:07:40,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2024-10-31 22:07:40,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.0192307692307692) internal successors, (106), 103 states have internal predecessors, (106), 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) [2024-10-31 22:07:40,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 106 transitions. [2024-10-31 22:07:40,625 INFO L240 hiAutomatonCegarLoop]: Abstraction has 104 states and 106 transitions. [2024-10-31 22:07:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-10-31 22:07:40,626 INFO L425 stractBuchiCegarLoop]: Abstraction has 104 states and 106 transitions. [2024-10-31 22:07:40,626 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 22:07:40,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 106 transitions. [2024-10-31 22:07:40,627 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:07:40,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:40,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:40,629 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [51, 49, 1, 1, 1] [2024-10-31 22:07:40,630 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-10-31 22:07:40,630 INFO L745 eck$LassoCheckResult]: Stem: 2669#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2670#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~j~0#1 := 100;main_~i~0#1 := 0; 2665#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2666#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2671#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2672#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2667#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2668#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2768#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2767#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2766#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2765#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2764#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2763#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2762#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2761#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2760#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2759#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2758#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2757#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2756#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2755#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2754#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2753#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2752#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2751#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2750#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2749#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2748#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2747#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2746#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2745#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2744#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2743#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2742#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2741#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2740#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2739#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2738#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2737#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2736#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2735#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2734#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2733#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2732#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2731#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2730#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2729#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2728#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2727#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2726#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2725#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2724#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2723#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2722#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2721#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2720#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2719#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2718#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2717#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2716#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2715#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2714#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2713#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2712#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2711#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2710#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2709#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2708#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2707#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2706#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2705#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2704#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2703#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2702#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2701#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2700#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2699#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2698#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2697#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2696#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2695#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2694#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2693#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2692#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2691#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2690#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2689#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2688#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2687#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2686#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2685#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2684#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2683#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2682#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2681#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2680#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2679#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2678#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2677#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2676#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2674#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2673#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2675#L12 [2024-10-31 22:07:40,630 INFO L747 eck$LassoCheckResult]: Loop: 2675#L12 assume 51 < main_~j~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~j~0#1 := main_~j~0#1 - 1; 2676#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2674#L12 assume !(51 < main_~j~0#1);main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; 2673#L12-2 assume !!(main_~i~0#1 < main_~j~0#1); 2675#L12 [2024-10-31 22:07:40,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:40,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1994822288, now seen corresponding path program 6 times [2024-10-31 22:07:40,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:40,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318210760] [2024-10-31 22:07:40,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:40,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:40,672 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:40,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:40,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:40,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 3 times [2024-10-31 22:07:40,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:40,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916124757] [2024-10-31 22:07:40,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:40,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:40,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:40,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:40,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:40,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1522445560, now seen corresponding path program 7 times [2024-10-31 22:07:40,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:40,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025574646] [2024-10-31 22:07:40,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:40,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:40,779 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:40,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:45,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:45,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:07:45 BoogieIcfgContainer [2024-10-31 22:07:45,841 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:07:45,842 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:07:45,842 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:07:45,843 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:07:45,843 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:26" (3/4) ... [2024-10-31 22:07:45,847 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-31 22:07:45,923 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:07:45,924 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:07:45,924 INFO L158 Benchmark]: Toolchain (without parser) took 19963.88ms. Allocated memory was 151.0MB in the beginning and 388.0MB in the end (delta: 237.0MB). Free memory was 114.0MB in the beginning and 336.7MB in the end (delta: -222.7MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-10-31 22:07:45,925 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 151.0MB. Free memory was 117.5MB in the beginning and 117.4MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:45,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.02ms. Allocated memory is still 151.0MB. Free memory was 114.0MB in the beginning and 103.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:07:45,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.94ms. Allocated memory is still 151.0MB. Free memory was 102.5MB in the beginning and 101.5MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:07:45,926 INFO L158 Benchmark]: Boogie Preprocessor took 29.55ms. Allocated memory is still 151.0MB. Free memory was 101.5MB in the beginning and 100.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:45,926 INFO L158 Benchmark]: RCFGBuilder took 236.56ms. Allocated memory is still 151.0MB. Free memory was 99.9MB in the beginning and 91.0MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:07:45,927 INFO L158 Benchmark]: BuchiAutomizer took 19183.73ms. Allocated memory was 151.0MB in the beginning and 388.0MB in the end (delta: 237.0MB). Free memory was 91.0MB in the beginning and 341.9MB in the end (delta: -251.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:45,927 INFO L158 Benchmark]: Witness Printer took 81.55ms. Allocated memory is still 388.0MB. Free memory was 341.9MB in the beginning and 336.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:07:45,929 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 151.0MB. Free memory was 117.5MB in the beginning and 117.4MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.02ms. Allocated memory is still 151.0MB. Free memory was 114.0MB in the beginning and 103.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.94ms. Allocated memory is still 151.0MB. Free memory was 102.5MB in the beginning and 101.5MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.55ms. Allocated memory is still 151.0MB. Free memory was 101.5MB in the beginning and 100.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 236.56ms. Allocated memory is still 151.0MB. Free memory was 99.9MB in the beginning and 91.0MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 19183.73ms. Allocated memory was 151.0MB in the beginning and 388.0MB in the end (delta: 237.0MB). Free memory was 91.0MB in the beginning and 341.9MB in the end (delta: -251.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 81.55ms. Allocated memory is still 388.0MB. Free memory was 341.9MB in the beginning and 336.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (6 trivial, 3 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (((long) -2 * j) + 103) and consists of 4 locations. One deterministic module has affine ranking function (((long) -2 * j) + 103) and consists of 3 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function (((long) -2 * j) + 103) and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 51 locations. The remainder module has 104 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 18.9s and 8 iterations. TraceHistogramMax:51. Analysis of lassos took 17.0s. Construction of modules took 0.5s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 9 StatesRemovedByMinimization, 7 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, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 349 IncrementalHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 51 mSDtfsCounter, 349 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN2 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 12]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int j; [L8] j = 100 [L9] i = 0 VAL [i=0, j=100] [L11] COND TRUE i < j VAL [i=0, j=100] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=1, j=99] [L11] COND TRUE i < j VAL [i=1, j=99] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=2, j=98] [L11] COND TRUE i < j VAL [i=2, j=98] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=3, j=97] [L11] COND TRUE i < j VAL [i=3, j=97] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=4, j=96] [L11] COND TRUE i < j VAL [i=4, j=96] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=5, j=95] [L11] COND TRUE i < j VAL [i=5, j=95] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=6, j=94] [L11] COND TRUE i < j VAL [i=6, j=94] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=7, j=93] [L11] COND TRUE i < j VAL [i=7, j=93] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=8, j=92] [L11] COND TRUE i < j VAL [i=8, j=92] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=9, j=91] [L11] COND TRUE i < j VAL [i=9, j=91] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=10, j=90] [L11] COND TRUE i < j VAL [i=10, j=90] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=11, j=89] [L11] COND TRUE i < j VAL [i=11, j=89] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=12, j=88] [L11] COND TRUE i < j VAL [i=12, j=88] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=13, j=87] [L11] COND TRUE i < j VAL [i=13, j=87] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=14, j=86] [L11] COND TRUE i < j VAL [i=14, j=86] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=15, j=85] [L11] COND TRUE i < j VAL [i=15, j=85] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=16, j=84] [L11] COND TRUE i < j VAL [i=16, j=84] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=17, j=83] [L11] COND TRUE i < j VAL [i=17, j=83] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=18, j=82] [L11] COND TRUE i < j VAL [i=18, j=82] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=19, j=81] [L11] COND TRUE i < j VAL [i=19, j=81] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=20, j=80] [L11] COND TRUE i < j VAL [i=20, j=80] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=21, j=79] [L11] COND TRUE i < j VAL [i=21, j=79] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=22, j=78] [L11] COND TRUE i < j VAL [i=22, j=78] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=23, j=77] [L11] COND TRUE i < j VAL [i=23, j=77] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=24, j=76] [L11] COND TRUE i < j VAL [i=24, j=76] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=25, j=75] [L11] COND TRUE i < j VAL [i=25, j=75] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=26, j=74] [L11] COND TRUE i < j VAL [i=26, j=74] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=27, j=73] [L11] COND TRUE i < j VAL [i=27, j=73] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=28, j=72] [L11] COND TRUE i < j VAL [i=28, j=72] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=29, j=71] [L11] COND TRUE i < j VAL [i=29, j=71] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=30, j=70] [L11] COND TRUE i < j VAL [i=30, j=70] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=31, j=69] [L11] COND TRUE i < j VAL [i=31, j=69] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=32, j=68] [L11] COND TRUE i < j VAL [i=32, j=68] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=33, j=67] [L11] COND TRUE i < j VAL [i=33, j=67] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=34, j=66] [L11] COND TRUE i < j VAL [i=34, j=66] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=35, j=65] [L11] COND TRUE i < j VAL [i=35, j=65] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=36, j=64] [L11] COND TRUE i < j VAL [i=36, j=64] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=37, j=63] [L11] COND TRUE i < j VAL [i=37, j=63] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=38, j=62] [L11] COND TRUE i < j VAL [i=38, j=62] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=39, j=61] [L11] COND TRUE i < j VAL [i=39, j=61] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=40, j=60] [L11] COND TRUE i < j VAL [i=40, j=60] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=41, j=59] [L11] COND TRUE i < j VAL [i=41, j=59] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=42, j=58] [L11] COND TRUE i < j VAL [i=42, j=58] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=43, j=57] [L11] COND TRUE i < j VAL [i=43, j=57] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=44, j=56] [L11] COND TRUE i < j VAL [i=44, j=56] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=45, j=55] [L11] COND TRUE i < j VAL [i=45, j=55] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=46, j=54] [L11] COND TRUE i < j VAL [i=46, j=54] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=47, j=53] [L11] COND TRUE i < j VAL [i=47, j=53] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=49, j=51] [L11] COND TRUE i < j VAL [i=49, j=51] [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] Loop: [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 [L11] COND TRUE i < j End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] j = 100 [L9] i = 0 VAL [i=0, j=100] [L11] COND TRUE i < j VAL [i=0, j=100] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=1, j=99] [L11] COND TRUE i < j VAL [i=1, j=99] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=2, j=98] [L11] COND TRUE i < j VAL [i=2, j=98] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=3, j=97] [L11] COND TRUE i < j VAL [i=3, j=97] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=4, j=96] [L11] COND TRUE i < j VAL [i=4, j=96] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=5, j=95] [L11] COND TRUE i < j VAL [i=5, j=95] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=6, j=94] [L11] COND TRUE i < j VAL [i=6, j=94] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=7, j=93] [L11] COND TRUE i < j VAL [i=7, j=93] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=8, j=92] [L11] COND TRUE i < j VAL [i=8, j=92] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=9, j=91] [L11] COND TRUE i < j VAL [i=9, j=91] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=10, j=90] [L11] COND TRUE i < j VAL [i=10, j=90] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=11, j=89] [L11] COND TRUE i < j VAL [i=11, j=89] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=12, j=88] [L11] COND TRUE i < j VAL [i=12, j=88] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=13, j=87] [L11] COND TRUE i < j VAL [i=13, j=87] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=14, j=86] [L11] COND TRUE i < j VAL [i=14, j=86] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=15, j=85] [L11] COND TRUE i < j VAL [i=15, j=85] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=16, j=84] [L11] COND TRUE i < j VAL [i=16, j=84] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=17, j=83] [L11] COND TRUE i < j VAL [i=17, j=83] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=18, j=82] [L11] COND TRUE i < j VAL [i=18, j=82] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=19, j=81] [L11] COND TRUE i < j VAL [i=19, j=81] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=20, j=80] [L11] COND TRUE i < j VAL [i=20, j=80] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=21, j=79] [L11] COND TRUE i < j VAL [i=21, j=79] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=22, j=78] [L11] COND TRUE i < j VAL [i=22, j=78] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=23, j=77] [L11] COND TRUE i < j VAL [i=23, j=77] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=24, j=76] [L11] COND TRUE i < j VAL [i=24, j=76] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=25, j=75] [L11] COND TRUE i < j VAL [i=25, j=75] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=26, j=74] [L11] COND TRUE i < j VAL [i=26, j=74] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=27, j=73] [L11] COND TRUE i < j VAL [i=27, j=73] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=28, j=72] [L11] COND TRUE i < j VAL [i=28, j=72] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=29, j=71] [L11] COND TRUE i < j VAL [i=29, j=71] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=30, j=70] [L11] COND TRUE i < j VAL [i=30, j=70] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=31, j=69] [L11] COND TRUE i < j VAL [i=31, j=69] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=32, j=68] [L11] COND TRUE i < j VAL [i=32, j=68] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=33, j=67] [L11] COND TRUE i < j VAL [i=33, j=67] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=34, j=66] [L11] COND TRUE i < j VAL [i=34, j=66] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=35, j=65] [L11] COND TRUE i < j VAL [i=35, j=65] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=36, j=64] [L11] COND TRUE i < j VAL [i=36, j=64] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=37, j=63] [L11] COND TRUE i < j VAL [i=37, j=63] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=38, j=62] [L11] COND TRUE i < j VAL [i=38, j=62] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=39, j=61] [L11] COND TRUE i < j VAL [i=39, j=61] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=40, j=60] [L11] COND TRUE i < j VAL [i=40, j=60] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=41, j=59] [L11] COND TRUE i < j VAL [i=41, j=59] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=42, j=58] [L11] COND TRUE i < j VAL [i=42, j=58] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=43, j=57] [L11] COND TRUE i < j VAL [i=43, j=57] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=44, j=56] [L11] COND TRUE i < j VAL [i=44, j=56] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=45, j=55] [L11] COND TRUE i < j VAL [i=45, j=55] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=46, j=54] [L11] COND TRUE i < j VAL [i=46, j=54] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=47, j=53] [L11] COND TRUE i < j VAL [i=47, j=53] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 VAL [i=49, j=51] [L11] COND TRUE i < j VAL [i=49, j=51] [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 VAL [i=48, j=52] [L11] COND TRUE i < j VAL [i=48, j=52] Loop: [L12] COND TRUE 51 < j [L12] i = i+1 [L12] j = j-1 [L11] COND TRUE i < j [L12] COND FALSE !(51 < j) [L13] i = i-1 [L13] j = j+1 [L11] COND TRUE i < j End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:07:45,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:46,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-10-31 22:07:46,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:46,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-31 22:07:46,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:07:46,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9d1311d-2a69-4d2e-8575-472a4a67b7fe/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)