./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya --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 3a784e11bf73a2acfc7dcf1addce2ecbb061bf2a055ac7c7789f5cd2a0fe09f1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:59:38,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:59:38,696 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-29 05:59:38,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:59:38,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:59:38,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:59:38,729 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:59:38,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:59:38,731 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:59:38,731 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:59:38,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:59:38,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:59:38,734 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:59:38,734 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 05:59:38,735 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 05:59:38,736 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 05:59:38,736 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 05:59:38,737 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 05:59:38,738 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 05:59:38,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:59:38,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 05:59:38,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:59:38,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:59:38,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 05:59:38,742 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 05:59:38,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 05:59:38,743 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:59:38,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:59:38,744 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 05:59:38,744 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:59:38,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:59:38,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:59:38,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:59:38,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:59:38,746 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 05:59:38,747 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_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a784e11bf73a2acfc7dcf1addce2ecbb061bf2a055ac7c7789f5cd2a0fe09f1 [2023-11-29 05:59:38,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:59:39,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:59:39,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:59:39,016 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:59:39,016 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:59:39,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-bwb/and-04.c [2023-11-29 05:59:42,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:59:42,231 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:59:42,231 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/sv-benchmarks/c/termination-bwb/and-04.c [2023-11-29 05:59:42,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/data/87aab3264/8991586a44a04314927668ba072fa2be/FLAGfc194e8d4 [2023-11-29 05:59:42,250 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/data/87aab3264/8991586a44a04314927668ba072fa2be [2023-11-29 05:59:42,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:59:42,254 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:59:42,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:59:42,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:59:42,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:59:42,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6080ae8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42, skipping insertion in model container [2023-11-29 05:59:42,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,281 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:59:42,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:59:42,396 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:59:42,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:59:42,416 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:59:42,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42 WrapperNode [2023-11-29 05:59:42,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:59:42,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:59:42,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:59:42,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:59:42,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,440 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-11-29 05:59:42,440 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:59:42,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:59:42,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:59:42,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:59:42,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,450 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,456 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 05:59:42,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:59:42,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:59:42,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:59:42,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:59:42,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (1/1) ... [2023-11-29 05:59:42,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:42,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:42,495 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:59:42,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 05:59:42,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:59:42,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:59:42,589 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:59:42,590 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:59:42,664 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:59:42,673 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:59:42,673 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:59:42,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:59:42 BoogieIcfgContainer [2023-11-29 05:59:42,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:59:42,676 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 05:59:42,677 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 05:59:42,680 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 05:59:42,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:59:42,681 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 05:59:42" (1/3) ... [2023-11-29 05:59:42,682 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@525b0182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 05:59:42, skipping insertion in model container [2023-11-29 05:59:42,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:59:42,682 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:59:42" (2/3) ... [2023-11-29 05:59:42,683 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@525b0182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 05:59:42, skipping insertion in model container [2023-11-29 05:59:42,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 05:59:42,683 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:59:42" (3/3) ... [2023-11-29 05:59:42,684 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-04.c [2023-11-29 05:59:42,735 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 05:59:42,735 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 05:59:42,736 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 05:59:42,736 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 05:59:42,736 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 05:59:42,736 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 05:59:42,737 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 05:59:42,737 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 05:59:42,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2023-11-29 05:59:42,754 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 05:59:42,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:59:42,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:59:42,759 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 05:59:42,759 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 05:59:42,759 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 05:59:42,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2023-11-29 05:59:42,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 05:59:42,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:59:42,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:59:42,761 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 05:59:42,762 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 05:59:42,767 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 8#L16-2true [2023-11-29 05:59:42,768 INFO L750 eck$LassoCheckResult]: Loop: 8#L16-2true assume !!(main_~x~0#1 > 5); 2#L16true assume !(10 != main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 1; 8#L16-2true [2023-11-29 05:59:42,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:42,773 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 05:59:42,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:42,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914013052] [2023-11-29 05:59:42,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:42,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:59:42,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:59:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:59:42,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:59:42,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:42,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 1 times [2023-11-29 05:59:42,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:42,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179886468] [2023-11-29 05:59:42,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:42,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:59:42,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:59:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:59:42,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:59:42,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:42,878 INFO L85 PathProgramCache]: Analyzing trace with hash 925812, now seen corresponding path program 1 times [2023-11-29 05:59:42,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:42,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801067086] [2023-11-29 05:59:42,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:42,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:59:42,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:59:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:59:42,890 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:59:42,947 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:59:42,947 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:59:42,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:59:42,948 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:59:42,948 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:59:42,948 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:42,948 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:59:42,948 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:59:42,949 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration1_Loop [2023-11-29 05:59:42,949 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:59:42,949 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:59:42,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:59:43,036 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:59:43,037 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:59:43,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:43,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:43,052 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:59:43,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 05:59:43,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:59:43,059 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:59:43,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:59:43,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:43,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:43,091 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:59:43,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 05:59:43,094 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:59:43,094 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:59:43,112 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:59:43,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 05:59:43,116 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:59:43,116 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:59:43,116 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:59:43,116 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:59:43,116 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:59:43,116 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:43,116 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:59:43,117 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:59:43,117 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration1_Loop [2023-11-29 05:59:43,117 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:59:43,117 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:59:43,118 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:59:43,145 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:59:43,150 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:59:43,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:43,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:43,152 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:59:43,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 05:59:43,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:59:43,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:59:43,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:59:43,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:59:43,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 05:59:43,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:59:43,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 05:59:43,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:59:43,180 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:59:43,185 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-29 05:59:43,185 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 05:59:43,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:43,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:43,209 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:59:43,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 05:59:43,211 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:59:43,211 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:59:43,212 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:59:43,212 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-29 05:59:43,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 05:59:43,218 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:59:43,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:43,245 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:59:43,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:43,259 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:59:43,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:59:43,295 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-29 05:59:43,297 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) 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) [2023-11-29 05:59:43,350 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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). 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 34 states and 52 transitions. Complement of second has 6 states. [2023-11-29 05:59:43,352 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 [2023-11-29 05:59:43,356 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) [2023-11-29 05:59:43,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2023-11-29 05:59:43,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-29 05:59:43,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:59:43,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-29 05:59:43,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:59:43,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-29 05:59:43,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:59:43,361 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 52 transitions. [2023-11-29 05:59:43,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 05:59:43,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 14 states and 20 transitions. [2023-11-29 05:59:43,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-29 05:59:43,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-29 05:59:43,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2023-11-29 05:59:43,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:59:43,370 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2023-11-29 05:59:43,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2023-11-29 05:59:43,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-29 05:59:43,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:59:43,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2023-11-29 05:59:43,395 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2023-11-29 05:59:43,396 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2023-11-29 05:59:43,396 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 05:59:43,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2023-11-29 05:59:43,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 05:59:43,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:59:43,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:59:43,398 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-29 05:59:43,398 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-29 05:59:43,399 INFO L748 eck$LassoCheckResult]: Stem: 90#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 91#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 92#L16-2 assume !!(main_~x~0#1 > 5); 80#L16 assume 10 != main_~x~0#1; 81#L17 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~nondet1#1 := 0; 85#L17-4 [2023-11-29 05:59:43,399 INFO L750 eck$LassoCheckResult]: Loop: 85#L17-4 main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 88#L16-2 assume !!(main_~x~0#1 > 5); 89#L16 assume 10 != main_~x~0#1; 86#L17 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_#t~nondet1#1 := 0; 85#L17-4 [2023-11-29 05:59:43,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:43,399 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2023-11-29 05:59:43,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:43,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394375254] [2023-11-29 05:59:43,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:43,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:43,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:59:43,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:59:43,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394375254] [2023-11-29 05:59:43,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394375254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:59:43,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:59:43,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:59:43,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021125694] [2023-11-29 05:59:43,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:59:43,449 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 05:59:43,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:43,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1709109, now seen corresponding path program 1 times [2023-11-29 05:59:43,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:43,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712781399] [2023-11-29 05:59:43,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:43,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:43,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:59:43,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:59:43,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712781399] [2023-11-29 05:59:43,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712781399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:59:43,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:59:43,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:59:43,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313427513] [2023-11-29 05:59:43,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:59:43,479 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 05:59:43,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:59:43,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:59:43,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:59:43,483 INFO L87 Difference]: Start difference. First operand 13 states and 19 transitions. cyclomatic complexity: 8 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) [2023-11-29 05:59:43,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:59:43,499 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2023-11-29 05:59:43,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2023-11-29 05:59:43,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-29 05:59:43,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 17 transitions. [2023-11-29 05:59:43,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-29 05:59:43,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-29 05:59:43,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2023-11-29 05:59:43,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 05:59:43,501 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2023-11-29 05:59:43,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2023-11-29 05:59:43,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2023-11-29 05:59:43,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:59:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2023-11-29 05:59:43,503 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-29 05:59:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:59:43,505 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-11-29 05:59:43,505 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 05:59:43,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2023-11-29 05:59:43,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-29 05:59:43,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 05:59:43,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 05:59:43,506 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-29 05:59:43,506 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-29 05:59:43,506 INFO L748 eck$LassoCheckResult]: Stem: 120#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 121#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 124#L16-2 assume !!(main_~x~0#1 > 5); 114#L16 assume 10 != main_~x~0#1; 115#L17 [2023-11-29 05:59:43,507 INFO L750 eck$LassoCheckResult]: Loop: 115#L17 assume !(0 == main_~x~0#1 || 0 == main_~x~0#1 - 1); 118#L17-2 assume !(main_~x~0#1 == main_~x~0#1 - 1);assume (main_~x~0#1 < 0 && main_~x~0#1 - 1 >= 0) || main_#t~nondet1#1 <= main_~x~0#1;assume (main_~x~0#1 >= 0 && main_~x~0#1 - 1 < 0) || main_#t~nondet1#1 <= main_~x~0#1 - 1;assume (main_~x~0#1 < 0 && main_~x~0#1 - 1 < 0) || main_#t~nondet1#1 >= 0;assume (main_~x~0#1 >= 0 && main_~x~0#1 - 1 >= 0) || main_#t~nondet1#1 > main_~x~0#1 + (main_~x~0#1 - 1);assume main_#t~nondet1#1 >= -2147483648; 119#L17-4 main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 122#L16-2 assume !!(main_~x~0#1 > 5); 123#L16 assume 10 != main_~x~0#1; 115#L17 [2023-11-29 05:59:43,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:43,507 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-29 05:59:43,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:43,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143097342] [2023-11-29 05:59:43,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:43,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:59:43,513 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:59:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:59:43,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:59:43,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:43,517 INFO L85 PathProgramCache]: Analyzing trace with hash 46916375, now seen corresponding path program 1 times [2023-11-29 05:59:43,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:43,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617022642] [2023-11-29 05:59:43,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:43,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:59:43,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:59:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:59:43,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:59:43,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:43,536 INFO L85 PathProgramCache]: Analyzing trace with hash 585841106, now seen corresponding path program 1 times [2023-11-29 05:59:43,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:59:43,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514025110] [2023-11-29 05:59:43,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:43,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:59:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:59:43,546 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:59:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:59:43,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:59:43,627 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:59:43,627 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:59:43,628 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:59:43,628 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:59:43,628 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 05:59:43,628 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:43,628 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:59:43,628 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:59:43,628 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration3_Loop [2023-11-29 05:59:43,628 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:59:43,628 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:59:43,629 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:59:43,698 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:59:43,699 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 05:59:43,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:43,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:43,701 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:59:43,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 05:59:43,714 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 05:59:43,714 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:59:43,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 05:59:43,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:43,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:43,741 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:59:43,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 05:59:43,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 05:59:43,745 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 05:59:43,845 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 05:59:43,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 05:59:43,849 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 05:59:43,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 05:59:43,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 05:59:43,849 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 05:59:43,849 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 05:59:43,849 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:43,850 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 05:59:43,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 05:59:43,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04.c_Iteration3_Loop [2023-11-29 05:59:43,850 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 05:59:43,850 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 05:59:43,851 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 05:59:43,923 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 05:59:43,923 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 05:59:43,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:43,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:43,925 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:59:43,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 05:59:43,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 05:59:43,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 05:59:43,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 05:59:43,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 05:59:43,942 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-29 05:59:43,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 05:59:43,945 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-29 05:59:43,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 05:59:43,951 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 05:59:43,955 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 05:59:43,955 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 05:59:43,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 05:59:43,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:59:43,961 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 05:59:43,966 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 05:59:43,966 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 05:59:43,966 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 05:59:43,966 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-29 05:59:43,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 05:59:43,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-29 05:59:43,971 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 05:59:43,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:43,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:59:43,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:44,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:59:44,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:44,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-29 05:59:44,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-29 05:59:44,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:59:44,180 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-29 05:59:44,181 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:59:44,294 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 28 transitions. Complement of second has 10 states. [2023-11-29 05:59:44,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-29 05:59:44,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:59:44,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2023-11-29 05:59:44,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 4 letters. Loop has 5 letters. [2023-11-29 05:59:44,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:59:44,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 9 letters. Loop has 5 letters. [2023-11-29 05:59:44,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:59:44,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 4 letters. Loop has 10 letters. [2023-11-29 05:59:44,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 05:59:44,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2023-11-29 05:59:44,299 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 05:59:44,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2023-11-29 05:59:44,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 05:59:44,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 05:59:44,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 05:59:44,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:59:44,299 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:59:44,300 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:59:44,300 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 05:59:44,300 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 05:59:44,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 05:59:44,300 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 05:59:44,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 05:59:44,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 05:59:44 BoogieIcfgContainer [2023-11-29 05:59:44,308 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 05:59:44,309 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:59:44,309 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:59:44,309 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:59:44,310 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:59:42" (3/4) ... [2023-11-29 05:59:44,311 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:59:44,312 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:59:44,313 INFO L158 Benchmark]: Toolchain (without parser) took 2059.26ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 91.3MB in the beginning and 126.6MB in the end (delta: -35.3MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-11-29 05:59:44,314 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:59:44,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.45ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 81.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 05:59:44,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.96ms. Allocated memory is still 127.9MB. Free memory was 81.8MB in the beginning and 80.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:59:44,315 INFO L158 Benchmark]: Boogie Preprocessor took 24.21ms. Allocated memory is still 127.9MB. Free memory was 80.4MB in the beginning and 79.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:59:44,316 INFO L158 Benchmark]: RCFGBuilder took 209.77ms. Allocated memory is still 127.9MB. Free memory was 79.1MB in the beginning and 70.3MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 05:59:44,316 INFO L158 Benchmark]: BuchiAutomizer took 1631.74ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 70.3MB in the beginning and 126.6MB in the end (delta: -56.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:59:44,317 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 172.0MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:59:44,320 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.45ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 81.8MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.96ms. Allocated memory is still 127.9MB. Free memory was 81.8MB in the beginning and 80.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.21ms. Allocated memory is still 127.9MB. Free memory was 80.4MB in the beginning and 79.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 209.77ms. Allocated memory is still 127.9MB. Free memory was 79.1MB in the beginning and 70.3MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1631.74ms. Allocated memory was 127.9MB in the beginning and 172.0MB in the end (delta: 44.0MB). Free memory was 70.3MB in the beginning and 126.6MB in the end (delta: -56.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 172.0MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 14 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf91 smp100 dnf129 smp96 tf110 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 42ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-29 05:59:44,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c157feb-36ae-4c0d-92ad-16f9552931c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE