./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme --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 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:23,248 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:23,360 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-26 11:51:23,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:23,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:23,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:23,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:23,419 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:23,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:23,425 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:23,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:23,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:23,427 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:23,430 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 11:51:23,430 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 11:51:23,431 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 11:51:23,431 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 11:51:23,431 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 11:51:23,432 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 11:51:23,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:23,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 11:51:23,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:51:23,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:23,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 11:51:23,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 11:51:23,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 11:51:23,436 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:51:23,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:23,437 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 11:51:23,437 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:23,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:23,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:23,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:23,439 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:51:23,440 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 11:51:23,440 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_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 [2023-11-26 11:51:23,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:23,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:23,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:23,786 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:23,787 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:23,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2023-11-26 11:51:26,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:27,177 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:27,178 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2023-11-26 11:51:27,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/data/fb29615a5/d0102428705d439f8257df0ccf1e6b3f/FLAG5986231fa [2023-11-26 11:51:27,201 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/data/fb29615a5/d0102428705d439f8257df0ccf1e6b3f [2023-11-26 11:51:27,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:27,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:27,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:27,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:27,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:27,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e853bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27, skipping insertion in model container [2023-11-26 11:51:27,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,241 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:27,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:27,392 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:27,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:27,414 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:27,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27 WrapperNode [2023-11-26 11:51:27,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:27,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:27,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:27,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:27,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,448 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2023-11-26 11:51:27,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:27,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:27,449 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:27,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:27,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,462 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,469 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-26 11:51:27,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,478 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:27,480 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:27,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:27,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:27,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (1/1) ... [2023-11-26 11:51:27,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:27,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:27,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:27,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:27,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:27,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:27,672 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:27,675 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:27,745 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:27,757 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:27,757 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:51:27,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:27 BoogieIcfgContainer [2023-11-26 11:51:27,758 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:27,759 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 11:51:27,759 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 11:51:27,763 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 11:51:27,764 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:51:27,765 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 11:51:27" (1/3) ... [2023-11-26 11:51:27,766 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c298edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:51:27, skipping insertion in model container [2023-11-26 11:51:27,766 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:51:27,766 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:27" (2/3) ... [2023-11-26 11:51:27,767 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c298edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:51:27, skipping insertion in model container [2023-11-26 11:51:27,767 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:51:27,767 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:27" (3/3) ... [2023-11-26 11:51:27,768 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthy91_Iteration.c [2023-11-26 11:51:27,829 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 11:51:27,830 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 11:51:27,830 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 11:51:27,830 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 11:51:27,830 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 11:51:27,830 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 11:51:27,830 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 11:51:27,831 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 11:51:27,835 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) [2023-11-26 11:51:27,854 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 11:51:27,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:51:27,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:51:27,860 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 11:51:27,860 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 11:51:27,860 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 11:51:27,861 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) [2023-11-26 11:51:27,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 11:51:27,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:51:27,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:51:27,862 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 11:51:27,863 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 11:51:27,871 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 7#L15-2true [2023-11-26 11:51:27,871 INFO L750 eck$LassoCheckResult]: Loop: 7#L15-2true assume !!(main_~c~0#1 > 0); 5#L15true assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 7#L15-2true [2023-11-26 11:51:27,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:27,877 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 11:51:27,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:27,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612150162] [2023-11-26 11:51:27,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:27,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:28,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:28,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:28,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:28,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-26 11:51:28,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:28,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012337668] [2023-11-26 11:51:28,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:28,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:28,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:28,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:28,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:28,113 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-26 11:51:28,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:28,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898200991] [2023-11-26 11:51:28,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:28,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:28,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:28,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:28,358 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:28,359 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:28,359 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:28,360 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:28,360 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:51:28,360 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:28,360 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:28,361 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:28,361 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration1_Loop [2023-11-26 11:51:28,361 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:28,362 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:28,378 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:28,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:28,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:28,412 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:28,533 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:28,534 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:51:28,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:28,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:28,537 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:28,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 11:51:28,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:28,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:28,567 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:51:28,568 INFO L440 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: [] [2023-11-26 11:51:28,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:28,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:28,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:28,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:28,587 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:28,587 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:28,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 11:51:28,616 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:51:28,617 INFO L440 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: [] [2023-11-26 11:51:28,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:28,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:28,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:28,629 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:28,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:28,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:28,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 11:51:28,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:28,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:28,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:28,663 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:28,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 11:51:28,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:51:28,666 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:28,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:51:28,702 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [0, 1, 5] Nus: [0, 0] [2023-11-26 11:51:28,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:28,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:28,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:28,720 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:28,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 11:51:28,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:28,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:28,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:28,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:28,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:28,765 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:28,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:51:28,778 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:28,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 11:51:28,818 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:51:28,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:28,833 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:28,833 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:28,833 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:28,833 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:28,834 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:51:28,834 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:28,834 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:28,834 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:28,834 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration1_Loop [2023-11-26 11:51:28,834 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:28,835 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:28,839 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:28,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:28,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:28,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:28,959 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:28,964 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:51:28,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:28,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:28,967 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:28,974 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 [2023-11-26 11:51:28,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 11:51:28,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:28,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:28,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:28,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:28,999 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 11:51:29,003 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 11:51:29,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:51:29,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:29,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:29,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:29,036 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:29,050 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 [2023-11-26 11:51:29,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:29,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:29,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:29,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:29,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-26 11:51:29,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 11:51:29,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 11:51:29,090 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:51:29,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:29,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:29,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:29,100 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:29,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-26 11:51:29,109 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 [2023-11-26 11:51:29,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:29,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:51:29,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:29,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:29,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:29,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:51:29,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:51:29,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:51:29,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:29,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:29,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:29,155 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:29,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-26 11:51:29,161 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 [2023-11-26 11:51:29,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:29,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:51:29,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:29,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:29,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:29,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:51:29,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:51:29,183 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:51:29,189 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:51:29,189 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:51:29,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:29,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:29,228 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:29,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-26 11:51:29,230 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:51:29,230 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:51:29,230 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:51:29,231 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2023-11-26 11:51:29,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:29,249 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:51:29,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:29,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:29,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:29,315 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:51:29,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:29,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:29,380 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 [2023-11-26 11:51:29,383 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) [2023-11-26 11:51:29,425 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 20 states and 28 transitions. Complement of second has 6 states. [2023-11-26 11:51:29,427 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 [2023-11-26 11:51:29,433 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) [2023-11-26 11:51:29,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-26 11:51:29,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-26 11:51:29,435 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:29,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-26 11:51:29,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:29,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-26 11:51:29,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:29,437 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2023-11-26 11:51:29,440 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 11:51:29,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2023-11-26 11:51:29,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-26 11:51:29,446 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-26 11:51:29,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-26 11:51:29,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:51:29,447 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-26 11:51:29,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-26 11:51:29,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-26 11:51:29,474 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) [2023-11-26 11:51:29,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-26 11:51:29,477 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-26 11:51:29,478 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-26 11:51:29,478 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 11:51:29,478 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-11-26 11:51:29,479 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 11:51:29,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:51:29,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:51:29,480 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-26 11:51:29,480 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 11:51:29,480 INFO L748 eck$LassoCheckResult]: Stem: 67#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 68#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 69#L15-2 assume !!(main_~c~0#1 > 0); 63#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 64#L15-2 [2023-11-26 11:51:29,481 INFO L750 eck$LassoCheckResult]: Loop: 64#L15-2 assume !!(main_~c~0#1 > 0); 70#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 64#L15-2 [2023-11-26 11:51:29,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:29,482 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-26 11:51:29,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:29,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917446850] [2023-11-26 11:51:29,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:29,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:29,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:29,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:29,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:29,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-11-26 11:51:29,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:29,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898046693] [2023-11-26 11:51:29,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:29,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:29,513 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:29,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:29,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:29,519 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-11-26 11:51:29,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:29,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16012684] [2023-11-26 11:51:29,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:29,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:29,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:29,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16012684] [2023-11-26 11:51:29,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16012684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:29,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:29,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:51:29,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031834023] [2023-11-26 11:51:29,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:29,661 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:29,661 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:29,661 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:29,661 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:29,662 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:51:29,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:29,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:29,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:29,662 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration2_Loop [2023-11-26 11:51:29,662 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:29,663 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:29,664 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:29,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:29,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:29,680 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:29,739 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:29,739 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:51:29,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:29,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:29,741 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:29,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:29,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:29,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-26 11:51:29,777 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:51:29,777 INFO L440 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: [] [2023-11-26 11:51:29,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:29,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:29,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:29,783 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:29,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-26 11:51:29,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:29,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:29,816 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:51:29,816 INFO L440 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: [] [2023-11-26 11:51:29,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:29,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:29,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:29,829 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:29,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:29,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:29,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-26 11:51:29,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:29,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:29,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:29,884 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:29,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-26 11:51:29,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:51:29,903 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:29,935 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:51:29,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:29,941 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:29,941 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:29,941 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:29,942 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:29,942 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:51:29,942 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:29,942 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:29,942 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:29,942 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration2_Loop [2023-11-26 11:51:29,942 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:29,942 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:29,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:29,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:29,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:29,966 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:30,037 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:30,038 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:51:30,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:30,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:30,041 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:30,061 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 [2023-11-26 11:51:30,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-26 11:51:30,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:30,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:30,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:30,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:30,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 11:51:30,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 11:51:30,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:51:30,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:30,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:30,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:30,105 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:30,114 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 [2023-11-26 11:51:30,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:30,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:30,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:30,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:30,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-26 11:51:30,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 11:51:30,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 11:51:30,142 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:51:30,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-26 11:51:30,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:30,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:30,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:30,177 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:30,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-26 11:51:30,198 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 [2023-11-26 11:51:30,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:30,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:51:30,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:30,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:30,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:30,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:51:30,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:51:30,224 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:51:30,227 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:51:30,227 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:51:30,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:30,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:30,237 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:30,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-26 11:51:30,253 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:51:30,253 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:51:30,253 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:51:30,253 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2023-11-26 11:51:30,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:30,263 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:51:30,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:30,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:30,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:30,318 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:51:30,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:30,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:30,322 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 [2023-11-26 11:51:30,323 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:30,335 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 17 transitions. Complement of second has 5 states. [2023-11-26 11:51:30,336 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 [2023-11-26 11:51:30,336 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) [2023-11-26 11:51:30,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-26 11:51:30,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-26 11:51:30,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:30,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-26 11:51:30,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:30,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-26 11:51:30,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:30,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2023-11-26 11:51:30,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 11:51:30,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2023-11-26 11:51:30,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-26 11:51:30,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-26 11:51:30,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2023-11-26 11:51:30,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:51:30,343 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-11-26 11:51:30,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2023-11-26 11:51:30,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-26 11:51:30,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:30,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2023-11-26 11:51:30,346 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-11-26 11:51:30,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:30,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:51:30,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:51:30,351 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2023-11-26 11:51:30,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:30,371 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-11-26 11:51:30,371 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-11-26 11:51:30,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 11:51:30,373 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 17 transitions. [2023-11-26 11:51:30,374 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-26 11:51:30,374 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-26 11:51:30,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2023-11-26 11:51:30,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:51:30,374 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-26 11:51:30,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2023-11-26 11:51:30,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-11-26 11:51:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:30,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2023-11-26 11:51:30,377 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-26 11:51:30,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:51:30,379 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-26 11:51:30,379 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 11:51:30,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2023-11-26 11:51:30,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-26 11:51:30,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:51:30,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:51:30,381 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2023-11-26 11:51:30,381 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 11:51:30,381 INFO L748 eck$LassoCheckResult]: Stem: 149#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 150#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 155#L15-2 assume !!(main_~c~0#1 > 0); 156#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 160#L15-2 assume !!(main_~c~0#1 > 0); 159#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 157#L15-2 assume !!(main_~c~0#1 > 0); 151#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 152#L15-2 [2023-11-26 11:51:30,381 INFO L750 eck$LassoCheckResult]: Loop: 152#L15-2 assume !!(main_~c~0#1 > 0); 158#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 152#L15-2 [2023-11-26 11:51:30,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:30,382 INFO L85 PathProgramCache]: Analyzing trace with hash 297591406, now seen corresponding path program 2 times [2023-11-26 11:51:30,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:30,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693683335] [2023-11-26 11:51:30,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:30,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:30,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:30,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:30,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:30,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-11-26 11:51:30,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:30,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009125274] [2023-11-26 11:51:30,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:30,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:30,406 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:30,410 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:30,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:30,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1777467309, now seen corresponding path program 3 times [2023-11-26 11:51:30,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:30,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343387518] [2023-11-26 11:51:30,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:30,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:30,484 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:51:30,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:30,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343387518] [2023-11-26 11:51:30,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343387518] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:51:30,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493174296] [2023-11-26 11:51:30,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 11:51:30,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:30,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:30,488 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:30,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-26 11:51:30,545 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-26 11:51:30,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:51:30,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:51:30,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:30,610 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:51:30,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:51:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:51:30,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493174296] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:51:30,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:51:30,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-11-26 11:51:30,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2594849] [2023-11-26 11:51:30,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:51:30,679 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:30,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:30,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:30,679 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:30,679 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:51:30,679 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:30,680 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:30,680 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:30,680 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration3_Loop [2023-11-26 11:51:30,680 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:30,680 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:30,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:30,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:30,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:30,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:30,750 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:30,750 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:51:30,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:30,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:30,756 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:30,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:30,768 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:30,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-26 11:51:30,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:30,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:30,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:30,803 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:30,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:51:30,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:30,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-26 11:51:30,843 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:51:30,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:30,857 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:30,857 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:30,857 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:30,857 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:30,857 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:51:30,857 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:30,857 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:30,858 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:30,858 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration3_Loop [2023-11-26 11:51:30,858 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:30,858 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:30,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:30,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:30,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:30,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:30,946 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:30,947 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:51:30,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:30,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:30,948 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:30,953 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 [2023-11-26 11:51:30,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-26 11:51:30,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:30,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:51:30,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:30,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:30,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:30,969 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:51:30,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:51:30,984 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:51:30,993 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:51:30,994 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:51:30,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:30,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:30,997 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:31,004 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:51:31,004 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:51:31,005 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:51:31,005 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2023-11-26 11:51:31,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-26 11:51:31,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:31,015 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:51:31,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:31,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:31,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:31,076 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:51:31,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:31,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:31,082 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 [2023-11-26 11:51:31,082 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 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) [2023-11-26 11:51:31,103 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. 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 14 states and 20 transitions. Complement of second has 5 states. [2023-11-26 11:51:31,104 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 [2023-11-26 11:51:31,106 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) [2023-11-26 11:51:31,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-26 11:51:31,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-26 11:51:31,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:31,108 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:31,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:31,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:31,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:31,161 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:51:31,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:31,171 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 [2023-11-26 11:51:31,172 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 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) [2023-11-26 11:51:31,183 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. 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 14 states and 20 transitions. Complement of second has 5 states. [2023-11-26 11:51:31,183 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 [2023-11-26 11:51:31,186 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) [2023-11-26 11:51:31,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-26 11:51:31,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-26 11:51:31,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:31,188 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:31,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:31,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:31,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:31,239 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:51:31,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:31,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:31,245 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 [2023-11-26 11:51:31,245 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 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) [2023-11-26 11:51:31,261 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. 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 16 states and 23 transitions. Complement of second has 4 states. [2023-11-26 11:51:31,261 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 [2023-11-26 11:51:31,265 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) [2023-11-26 11:51:31,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-26 11:51:31,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2023-11-26 11:51:31,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:31,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2023-11-26 11:51:31,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:31,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-26 11:51:31,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:31,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2023-11-26 11:51:31,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 11:51:31,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2023-11-26 11:51:31,278 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-26 11:51:31,278 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-26 11:51:31,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2023-11-26 11:51:31,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:51:31,279 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-11-26 11:51:31,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2023-11-26 11:51:31,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2023-11-26 11:51:31,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) 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) [2023-11-26 11:51:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-11-26 11:51:31,283 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-11-26 11:51:31,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:31,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:51:31,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:51:31,286 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:31,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:31,308 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2023-11-26 11:51:31,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2023-11-26 11:51:31,309 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-26 11:51:31,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 15 transitions. [2023-11-26 11:51:31,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-26 11:51:31,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-26 11:51:31,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2023-11-26 11:51:31,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:51:31,311 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-11-26 11:51:31,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2023-11-26 11:51:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2023-11-26 11:51:31,314 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) [2023-11-26 11:51:31,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-11-26 11:51:31,314 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-26 11:51:31,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:51:31,317 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-11-26 11:51:31,317 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 11:51:31,317 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2023-11-26 11:51:31,320 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-26 11:51:31,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:51:31,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:51:31,321 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 11:51:31,321 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-26 11:51:31,321 INFO L748 eck$LassoCheckResult]: Stem: 399#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 400#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 402#L15-2 [2023-11-26 11:51:31,321 INFO L750 eck$LassoCheckResult]: Loop: 402#L15-2 assume !!(main_~c~0#1 > 0); 405#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 408#L15-2 assume !!(main_~c~0#1 > 0); 401#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 402#L15-2 [2023-11-26 11:51:31,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:31,322 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-26 11:51:31,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:31,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766354230] [2023-11-26 11:51:31,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:31,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:31,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:31,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:31,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:31,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1266953, now seen corresponding path program 1 times [2023-11-26 11:51:31,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:31,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229111893] [2023-11-26 11:51:31,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:31,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:31,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:31,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:31,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:31,351 INFO L85 PathProgramCache]: Analyzing trace with hash 889694155, now seen corresponding path program 4 times [2023-11-26 11:51:31,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:31,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360970506] [2023-11-26 11:51:31,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:31,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:31,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:31,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:31,451 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:31,451 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:31,451 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:31,451 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:31,451 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:51:31,451 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:31,451 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:31,452 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:31,452 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration4_Loop [2023-11-26 11:51:31,452 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:31,452 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:31,453 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:31,462 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:31,465 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:31,469 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:31,529 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:31,529 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:51:31,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:31,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:31,531 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:31,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-26 11:51:31,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:31,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:31,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:31,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:31,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:31,567 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:31,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:51:31,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:31,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-26 11:51:31,608 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:51:31,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:31,615 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:31,615 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:31,615 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:31,615 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:31,615 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:51:31,615 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:31,616 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:31,616 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:31,616 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration4_Loop [2023-11-26 11:51:31,616 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:31,616 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:31,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:31,627 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:31,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:31,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:31,699 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:31,699 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:51:31,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:31,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:31,701 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:31,706 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 [2023-11-26 11:51:31,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:31,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:51:31,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:31,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:31,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:31,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-26 11:51:31,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:51:31,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:51:31,740 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:51:31,743 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:51:31,743 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:51:31,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:31,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:31,745 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:31,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-26 11:51:31,747 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:51:31,747 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:51:31,747 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:51:31,748 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 201 Supporting invariants [] [2023-11-26 11:51:31,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-26 11:51:31,752 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:51:31,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:31,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:31,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:31,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:51:31,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:31,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:31,832 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 [2023-11-26 11:51:31,832 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2023-11-26 11:51:31,842 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 21 states and 27 transitions. Complement of second has 5 states. [2023-11-26 11:51:31,842 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 [2023-11-26 11:51:31,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2023-11-26 11:51:31,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2023-11-26 11:51:31,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-26 11:51:31,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:31,844 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:31,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:31,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:31,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:31,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:51:31,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:31,909 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 [2023-11-26 11:51:31,909 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2023-11-26 11:51:31,934 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 25 states and 33 transitions. Complement of second has 7 states. [2023-11-26 11:51:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:31,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2023-11-26 11:51:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2023-11-26 11:51:31,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-26 11:51:31,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:31,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-26 11:51:31,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:31,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 8 letters. [2023-11-26 11:51:31,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:31,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-26 11:51:31,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 11:51:31,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 22 transitions. [2023-11-26 11:51:31,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-26 11:51:31,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-26 11:51:31,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2023-11-26 11:51:31,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:51:31,939 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-11-26 11:51:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2023-11-26 11:51:31,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2023-11-26 11:51:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 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) [2023-11-26 11:51:31,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2023-11-26 11:51:31,941 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-26 11:51:31,941 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-26 11:51:31,942 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-26 11:51:31,942 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2023-11-26 11:51:31,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-26 11:51:31,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:51:31,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:51:31,943 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-11-26 11:51:31,943 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-26 11:51:31,943 INFO L748 eck$LassoCheckResult]: Stem: 523#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 524#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 525#L15-2 assume !!(main_~c~0#1 > 0); 521#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 522#L15-2 assume !!(main_~c~0#1 > 0); 529#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 532#L15-2 assume !!(main_~c~0#1 > 0); 531#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 528#L15-2 assume !!(main_~c~0#1 > 0); 519#L15 [2023-11-26 11:51:31,944 INFO L750 eck$LassoCheckResult]: Loop: 519#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 520#L15-2 assume !!(main_~c~0#1 > 0); 519#L15 [2023-11-26 11:51:31,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:31,944 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 5 times [2023-11-26 11:51:31,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:31,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861449423] [2023-11-26 11:51:31,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:31,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:31,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:31,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:31,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:31,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2023-11-26 11:51:31,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:31,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066557664] [2023-11-26 11:51:31,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:31,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:31,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:31,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:31,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:31,965 INFO L85 PathProgramCache]: Analyzing trace with hash 790346520, now seen corresponding path program 6 times [2023-11-26 11:51:31,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:31,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299378841] [2023-11-26 11:51:31,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:31,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:31,972 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:31,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:32,008 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:32,008 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:32,009 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:32,009 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:32,009 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:51:32,009 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:32,009 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:32,009 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:32,009 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration5_Loop [2023-11-26 11:51:32,010 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:32,010 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:32,011 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,029 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,080 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:32,081 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:51:32,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:32,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:32,085 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:32,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:32,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:32,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-26 11:51:32,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:32,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:32,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:32,117 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:32,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-26 11:51:32,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:51:32,125 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:32,183 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:51:32,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-26 11:51:32,187 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:32,187 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:32,187 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:32,187 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:32,187 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:51:32,187 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:32,187 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:32,187 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:32,187 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration5_Loop [2023-11-26 11:51:32,187 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:32,188 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:32,189 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,208 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,269 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:32,269 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:51:32,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:32,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:32,270 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:32,284 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:51:32,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:32,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:51:32,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:32,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:32,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:32,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-26 11:51:32,298 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:51:32,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:51:32,312 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:51:32,323 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 11:51:32,324 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:51:32,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:32,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:32,327 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:32,330 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:51:32,330 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:51:32,330 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:51:32,330 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2023-11-26 11:51:32,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-26 11:51:32,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:32,340 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:51:32,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:32,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:32,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:32,385 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:51:32,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:32,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:32,397 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 [2023-11-26 11:51:32,398 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 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) [2023-11-26 11:51:32,406 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. 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 16 states and 21 transitions. Complement of second has 3 states. [2023-11-26 11:51:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:32,408 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) [2023-11-26 11:51:32,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-26 11:51:32,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-26 11:51:32,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:32,409 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:32,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:32,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:32,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:32,459 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:51:32,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:32,475 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 [2023-11-26 11:51:32,476 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 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) [2023-11-26 11:51:32,480 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. 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 16 states and 21 transitions. Complement of second has 3 states. [2023-11-26 11:51:32,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:32,482 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) [2023-11-26 11:51:32,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-26 11:51:32,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-26 11:51:32,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:32,482 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:32,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:32,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:32,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:32,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:32,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:32,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:32,559 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:51:32,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:32,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:32,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:32,572 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 [2023-11-26 11:51:32,572 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 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) [2023-11-26 11:51:32,593 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. 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 21 states and 28 transitions. Complement of second has 4 states. [2023-11-26 11:51:32,594 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 [2023-11-26 11:51:32,595 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) [2023-11-26 11:51:32,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-26 11:51:32,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-26 11:51:32,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:32,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 11 letters. Loop has 2 letters. [2023-11-26 11:51:32,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:32,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-26 11:51:32,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:32,596 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2023-11-26 11:51:32,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-26 11:51:32,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 24 transitions. [2023-11-26 11:51:32,598 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-26 11:51:32,598 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-11-26 11:51:32,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2023-11-26 11:51:32,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:51:32,598 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2023-11-26 11:51:32,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2023-11-26 11:51:32,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2023-11-26 11:51:32,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 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) [2023-11-26 11:51:32,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2023-11-26 11:51:32,600 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-26 11:51:32,601 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-11-26 11:51:32,601 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-26 11:51:32,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2023-11-26 11:51:32,601 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-26 11:51:32,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:51:32,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:51:32,602 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-11-26 11:51:32,602 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-26 11:51:32,602 INFO L748 eck$LassoCheckResult]: Stem: 712#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 713#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 714#L15-2 assume !!(main_~c~0#1 > 0); 715#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 722#L15-2 assume !!(main_~c~0#1 > 0); 721#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 720#L15-2 assume !!(main_~c~0#1 > 0); 718#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 719#L15-2 assume !!(main_~c~0#1 > 0); 709#L15 [2023-11-26 11:51:32,603 INFO L750 eck$LassoCheckResult]: Loop: 709#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 710#L15-2 assume !!(main_~c~0#1 > 0); 716#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 717#L15-2 assume !!(main_~c~0#1 > 0); 709#L15 [2023-11-26 11:51:32,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:32,603 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 7 times [2023-11-26 11:51:32,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:32,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405663303] [2023-11-26 11:51:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:32,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:32,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:32,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:32,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:32,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2023-11-26 11:51:32,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:32,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327286014] [2023-11-26 11:51:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:32,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:32,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:32,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:32,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:32,624 INFO L85 PathProgramCache]: Analyzing trace with hash -686205165, now seen corresponding path program 8 times [2023-11-26 11:51:32,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:32,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424527011] [2023-11-26 11:51:32,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:32,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:32,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:32,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:32,691 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:32,691 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:32,691 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:32,692 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:32,692 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:51:32,692 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:32,692 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:32,692 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:32,692 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration6_Loop [2023-11-26 11:51:32,692 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:32,692 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:32,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,704 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,759 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:32,759 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:51:32,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:32,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:32,760 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:32,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-26 11:51:32,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:32,771 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:32,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:32,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:32,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:32,791 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:32,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-26 11:51:32,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:51:32,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:32,837 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:51:32,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:32,846 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:32,846 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:32,846 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:32,846 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:32,846 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:51:32,846 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:32,846 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:32,846 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:32,846 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration6_Loop [2023-11-26 11:51:32,846 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:32,847 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:32,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,856 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,858 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,864 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:32,909 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:32,909 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:51:32,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:32,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:32,910 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:32,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-26 11:51:32,918 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 [2023-11-26 11:51:32,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:32,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:51:32,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:32,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:32,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:32,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:51:32,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:51:32,946 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:51:32,949 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:51:32,949 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:51:32,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:32,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:32,951 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:32,957 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:51:32,957 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:51:32,958 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:51:32,958 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 221 Supporting invariants [] [2023-11-26 11:51:32,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-26 11:51:32,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:32,965 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:51:32,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:32,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:32,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:33,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:51:33,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:33,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:33,038 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-26 11:51:33,038 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:33,067 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 33 transitions. Complement of second has 7 states. [2023-11-26 11:51:33,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:33,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:33,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-26 11:51:33,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-26 11:51:33,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:33,070 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:33,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:33,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:33,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:33,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:51:33,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:33,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:33,136 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-26 11:51:33,136 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:33,157 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 33 transitions. Complement of second has 7 states. [2023-11-26 11:51:33,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:33,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:33,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-26 11:51:33,160 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-26 11:51:33,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:33,160 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:33,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:33,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:33,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:33,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:51:33,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:33,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:33,233 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-26 11:51:33,233 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:33,258 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 42 states and 53 transitions. Complement of second has 8 states. [2023-11-26 11:51:33,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:33,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:33,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-26 11:51:33,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-26 11:51:33,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:33,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2023-11-26 11:51:33,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:33,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 8 letters. [2023-11-26 11:51:33,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:33,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 53 transitions. [2023-11-26 11:51:33,266 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-26 11:51:33,267 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 31 states and 40 transitions. [2023-11-26 11:51:33,267 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-26 11:51:33,267 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-26 11:51:33,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2023-11-26 11:51:33,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:51:33,267 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 40 transitions. [2023-11-26 11:51:33,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2023-11-26 11:51:33,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2023-11-26 11:51:33,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 states have internal predecessors, (35), 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) [2023-11-26 11:51:33,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2023-11-26 11:51:33,276 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-11-26 11:51:33,276 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-11-26 11:51:33,277 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-26 11:51:33,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2023-11-26 11:51:33,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-26 11:51:33,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:51:33,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:51:33,285 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 3, 3, 1, 1] [2023-11-26 11:51:33,285 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 2, 1] [2023-11-26 11:51:33,286 INFO L748 eck$LassoCheckResult]: Stem: 983#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 984#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 985#L15-2 assume !!(main_~c~0#1 > 0); 995#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 996#L15-2 assume !!(main_~c~0#1 > 0); 993#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 991#L15-2 assume !!(main_~c~0#1 > 0); 990#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 986#L15-2 assume !!(main_~c~0#1 > 0); 987#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 981#L15-2 assume !!(main_~c~0#1 > 0); 1003#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1002#L15-2 assume !!(main_~c~0#1 > 0); 1001#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 999#L15-2 assume !!(main_~c~0#1 > 0); 980#L15 [2023-11-26 11:51:33,286 INFO L750 eck$LassoCheckResult]: Loop: 980#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 981#L15-2 assume !!(main_~c~0#1 > 0); 1003#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1002#L15-2 assume !!(main_~c~0#1 > 0); 1001#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 999#L15-2 assume !!(main_~c~0#1 > 0); 980#L15 [2023-11-26 11:51:33,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:33,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1981740944, now seen corresponding path program 9 times [2023-11-26 11:51:33,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:33,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298532860] [2023-11-26 11:51:33,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:33,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:33,380 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 11:51:33,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:33,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298532860] [2023-11-26 11:51:33,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298532860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:33,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:33,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:51:33,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616672429] [2023-11-26 11:51:33,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:33,382 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 11:51:33,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:33,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1298898678, now seen corresponding path program 3 times [2023-11-26 11:51:33,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:33,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112314500] [2023-11-26 11:51:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:33,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:33,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:33,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:33,461 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:33,462 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:33,462 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:33,462 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:33,462 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:51:33,462 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:33,462 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:33,462 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:33,463 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration7_Loop [2023-11-26 11:51:33,463 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:33,463 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:33,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:33,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:33,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:33,477 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:33,535 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:33,535 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:51:33,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:33,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:33,537 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:33,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-26 11:51:33,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:33,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:33,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2023-11-26 11:51:33,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:33,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:33,560 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:33,563 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:51:33,563 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:33,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-26 11:51:33,841 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:51:33,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2023-11-26 11:51:33,845 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:33,845 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:33,845 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:33,845 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:33,845 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:51:33,845 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:33,845 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:33,845 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:33,845 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration7_Loop [2023-11-26 11:51:33,845 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:33,845 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:33,846 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:33,857 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:33,862 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:33,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:33,920 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:33,920 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:51:33,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:33,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:33,923 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:33,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-26 11:51:33,941 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 [2023-11-26 11:51:33,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:33,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:51:33,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:33,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:33,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:33,969 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:51:33,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:51:33,983 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:51:33,985 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 11:51:33,985 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:51:33,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:33,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:33,986 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:33,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-26 11:51:33,989 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:51:33,989 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:51:33,990 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:51:33,990 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2023-11-26 11:51:33,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:33,993 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:51:34,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:34,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:34,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:34,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:51:34,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:34,110 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:34,110 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-26 11:51:34,111 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:34,116 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 36 transitions. Complement of second has 3 states. [2023-11-26 11:51:34,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:34,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:34,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-26 11:51:34,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-26 11:51:34,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:34,119 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:34,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:34,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:34,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:34,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:51:34,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:34,216 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:34,216 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-26 11:51:34,217 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:34,222 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 36 transitions. Complement of second has 3 states. [2023-11-26 11:51:34,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:34,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-26 11:51:34,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-26 11:51:34,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:34,223 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:34,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:34,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:34,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:34,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:51:34,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:34,312 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:34,312 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 4 loop predicates [2023-11-26 11:51:34,312 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:34,320 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 55 transitions. Complement of second has 4 states. [2023-11-26 11:51:34,321 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 [2023-11-26 11:51:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:34,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-26 11:51:34,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-26 11:51:34,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:34,322 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:34,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:34,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:34,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:34,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:51:34,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:34,418 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:34,419 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-26 11:51:34,419 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:34,451 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 94 transitions. Complement of second has 12 states. [2023-11-26 11:51:34,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:34,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:34,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-26 11:51:34,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-26 11:51:34,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:34,452 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:34,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:34,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:34,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:34,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:51:34,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:34,553 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:34,554 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-26 11:51:34,555 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:34,627 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:34,628 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:34,672 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:34,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:34,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:34,712 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:34,712 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:34,728 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:34,728 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:34,730 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 525 states and 880 transitions. Complement of second has 116 states 12 powerset states104 rank states. The highest rank that occured is 7 [2023-11-26 11:51:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:34,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:34,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2023-11-26 11:51:34,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-26 11:51:34,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:34,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 21 letters. Loop has 6 letters. [2023-11-26 11:51:34,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:34,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 15 letters. Loop has 12 letters. [2023-11-26 11:51:34,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:34,735 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 525 states and 880 transitions. [2023-11-26 11:51:34,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2023-11-26 11:51:34,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 525 states to 384 states and 664 transitions. [2023-11-26 11:51:34,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2023-11-26 11:51:34,753 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2023-11-26 11:51:34,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 384 states and 664 transitions. [2023-11-26 11:51:34,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:51:34,754 INFO L218 hiAutomatonCegarLoop]: Abstraction has 384 states and 664 transitions. [2023-11-26 11:51:34,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states and 664 transitions. [2023-11-26 11:51:34,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 99. [2023-11-26 11:51:34,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 99 states have (on average 1.6363636363636365) internal successors, (162), 98 states have internal predecessors, (162), 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) [2023-11-26 11:51:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 162 transitions. [2023-11-26 11:51:34,771 INFO L240 hiAutomatonCegarLoop]: Abstraction has 99 states and 162 transitions. [2023-11-26 11:51:34,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:34,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:51:34,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:51:34,772 INFO L87 Difference]: Start difference. First operand 99 states and 162 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:34,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:34,788 INFO L93 Difference]: Finished difference Result 122 states and 184 transitions. [2023-11-26 11:51:34,788 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 122 states and 184 transitions. [2023-11-26 11:51:34,790 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2023-11-26 11:51:34,791 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 122 states to 110 states and 166 transitions. [2023-11-26 11:51:34,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2023-11-26 11:51:34,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-11-26 11:51:34,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 166 transitions. [2023-11-26 11:51:34,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:51:34,792 INFO L218 hiAutomatonCegarLoop]: Abstraction has 110 states and 166 transitions. [2023-11-26 11:51:34,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 166 transitions. [2023-11-26 11:51:34,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 92. [2023-11-26 11:51:34,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 92 states have (on average 1.5217391304347827) internal successors, (140), 91 states have internal predecessors, (140), 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) [2023-11-26 11:51:34,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 140 transitions. [2023-11-26 11:51:34,799 INFO L240 hiAutomatonCegarLoop]: Abstraction has 92 states and 140 transitions. [2023-11-26 11:51:34,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:51:34,800 INFO L428 stractBuchiCegarLoop]: Abstraction has 92 states and 140 transitions. [2023-11-26 11:51:34,800 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-26 11:51:34,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states and 140 transitions. [2023-11-26 11:51:34,801 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2023-11-26 11:51:34,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:51:34,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:51:34,801 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2023-11-26 11:51:34,802 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 2, 2] [2023-11-26 11:51:34,802 INFO L748 eck$LassoCheckResult]: Stem: 2413#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2414#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2465#L15-2 assume !!(main_~c~0#1 > 0); 2460#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2462#L15-2 assume !!(main_~c~0#1 > 0); 2432#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2429#L15-2 assume !!(main_~c~0#1 > 0); 2431#L15 [2023-11-26 11:51:34,802 INFO L750 eck$LassoCheckResult]: Loop: 2431#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2416#L15-2 assume !!(main_~c~0#1 > 0); 2417#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2455#L15-2 assume !!(main_~c~0#1 > 0); 2422#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2423#L15-2 assume !!(main_~c~0#1 > 0); 2439#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2437#L15-2 assume !!(main_~c~0#1 > 0); 2431#L15 [2023-11-26 11:51:34,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:34,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715102, now seen corresponding path program 2 times [2023-11-26 11:51:34,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:34,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916550083] [2023-11-26 11:51:34,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:34,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:34,806 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:34,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:34,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:34,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1593853071, now seen corresponding path program 4 times [2023-11-26 11:51:34,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:34,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526616630] [2023-11-26 11:51:34,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:34,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:51:34,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:34,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526616630] [2023-11-26 11:51:34,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526616630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:34,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:34,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:51:34,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796879584] [2023-11-26 11:51:34,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:34,838 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 11:51:34,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:34,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:51:34,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:51:34,839 INFO L87 Difference]: Start difference. First operand 92 states and 140 transitions. cyclomatic complexity: 55 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:34,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:34,849 INFO L93 Difference]: Finished difference Result 113 states and 154 transitions. [2023-11-26 11:51:34,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 154 transitions. [2023-11-26 11:51:34,851 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2023-11-26 11:51:34,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 93 states and 126 transitions. [2023-11-26 11:51:34,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-26 11:51:34,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2023-11-26 11:51:34,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 126 transitions. [2023-11-26 11:51:34,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:51:34,852 INFO L218 hiAutomatonCegarLoop]: Abstraction has 93 states and 126 transitions. [2023-11-26 11:51:34,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 126 transitions. [2023-11-26 11:51:34,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 74. [2023-11-26 11:51:34,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 73 states have internal predecessors, (102), 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) [2023-11-26 11:51:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2023-11-26 11:51:34,857 INFO L240 hiAutomatonCegarLoop]: Abstraction has 74 states and 102 transitions. [2023-11-26 11:51:34,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:51:34,858 INFO L428 stractBuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2023-11-26 11:51:34,858 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-26 11:51:34,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2023-11-26 11:51:34,859 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2023-11-26 11:51:34,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:51:34,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:51:34,859 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2023-11-26 11:51:34,859 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 6, 4] [2023-11-26 11:51:34,860 INFO L748 eck$LassoCheckResult]: Stem: 2624#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2625#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 2627#L15-2 assume !!(main_~c~0#1 > 0); 2687#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2659#L15-2 assume !!(main_~c~0#1 > 0); 2681#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2682#L15-2 assume !!(main_~c~0#1 > 0); 2621#L15 [2023-11-26 11:51:34,860 INFO L750 eck$LassoCheckResult]: Loop: 2621#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2622#L15-2 assume !!(main_~c~0#1 > 0); 2686#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2683#L15-2 assume !!(main_~c~0#1 > 0); 2680#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2679#L15-2 assume !!(main_~c~0#1 > 0); 2678#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2676#L15-2 assume !!(main_~c~0#1 > 0); 2675#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2674#L15-2 assume !!(main_~c~0#1 > 0); 2671#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2673#L15-2 assume !!(main_~c~0#1 > 0); 2672#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2670#L15-2 assume !!(main_~c~0#1 > 0); 2669#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2668#L15-2 assume !!(main_~c~0#1 > 0); 2667#L15 assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2666#L15-2 assume !!(main_~c~0#1 > 0); 2665#L15 assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2663#L15-2 assume !!(main_~c~0#1 > 0); 2621#L15 [2023-11-26 11:51:34,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715102, now seen corresponding path program 3 times [2023-11-26 11:51:34,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:34,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254573428] [2023-11-26 11:51:34,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:34,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:34,864 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:34,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:34,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:34,867 INFO L85 PathProgramCache]: Analyzing trace with hash -860275429, now seen corresponding path program 5 times [2023-11-26 11:51:34,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:34,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734983433] [2023-11-26 11:51:34,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:34,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:34,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:51:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:51:34,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:51:34,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:34,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1172307576, now seen corresponding path program 10 times [2023-11-26 11:51:34,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:34,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610342931] [2023-11-26 11:51:34,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:34,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:35,022 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 105 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 11:51:35,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:35,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610342931] [2023-11-26 11:51:35,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610342931] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:51:35,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843616661] [2023-11-26 11:51:35,025 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-26 11:51:35,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:35,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:35,032 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:35,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-26 11:51:35,080 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-26 11:51:35,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:51:35,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:51:35,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:35,162 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 78 proven. 26 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-26 11:51:35,162 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:51:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 78 proven. 26 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-26 11:51:35,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843616661] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:51:35,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:51:35,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2023-11-26 11:51:35,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660013046] [2023-11-26 11:51:35,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:51:35,518 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:35,518 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:35,518 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:35,519 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:35,519 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:51:35,519 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:35,519 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:35,519 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:35,519 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration9_Loop [2023-11-26 11:51:35,519 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:35,519 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:35,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:35,524 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:35,531 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:35,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:35,595 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:35,595 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:51:35,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:35,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:35,597 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:35,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:35,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:35,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-26 11:51:35,633 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:51:35,633 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:51:35,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:35,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:35,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:35,644 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:35,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:51:35,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:35,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-26 11:51:35,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:35,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:35,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:35,682 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:35,689 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:51:35,689 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:51:35,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-26 11:51:35,767 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:51:35,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2023-11-26 11:51:35,770 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:51:35,771 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:51:35,771 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:51:35,771 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:51:35,771 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:51:35,771 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:35,771 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:51:35,771 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:51:35,771 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration9_Loop [2023-11-26 11:51:35,771 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:51:35,771 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:51:35,772 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:35,776 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:35,782 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:35,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:51:35,843 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:51:35,844 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:51:35,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:35,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:35,845 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:35,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-26 11:51:35,848 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 [2023-11-26 11:51:35,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:35,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:35,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:35,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:35,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-26 11:51:35,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-26 11:51:35,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:51:35,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:35,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:35,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:35,881 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:35,897 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 [2023-11-26 11:51:35,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-26 11:51:35,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:51:35,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:51:35,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:51:35,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:51:35,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:51:35,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:51:35,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:51:35,928 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:51:35,941 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-26 11:51:35,941 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:51:35,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:51:35,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:35,945 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:35,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-26 11:51:35,950 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:51:35,950 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:51:35,950 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:51:35,951 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2023-11-26 11:51:35,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:35,957 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:51:35,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:35,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:35,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:35,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:51:36,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:36,110 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:51:36,111 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-26 11:51:36,111 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2023-11-26 11:51:36,119 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 74 states and 102 transitions. Complement of second has 3 states. [2023-11-26 11:51:36,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:36,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2023-11-26 11:51:36,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-26 11:51:36,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-26 11:51:36,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:36,122 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:36,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:36,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:51:36,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:36,278 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:51:36,279 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-26 11:51:36,279 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2023-11-26 11:51:36,283 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 74 states and 102 transitions. Complement of second has 3 states. [2023-11-26 11:51:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:36,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2023-11-26 11:51:36,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-11-26 11:51:36,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-26 11:51:36,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:36,285 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:36,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:36,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:36,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:51:36,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:36,466 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:51:36,467 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 6 loop predicates [2023-11-26 11:51:36,467 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2023-11-26 11:51:36,487 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 104 states and 136 transitions. Complement of second has 4 states. [2023-11-26 11:51:36,487 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 [2023-11-26 11:51:36,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2023-11-26 11:51:36,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-26 11:51:36,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-26 11:51:36,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:36,489 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:36,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:36,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:51:36,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:36,647 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:51:36,648 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-26 11:51:36,648 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2023-11-26 11:51:36,667 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 102 transitions. cyclomatic complexity: 35. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 104 states and 136 transitions. Complement of second has 4 states. [2023-11-26 11:51:36,667 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 [2023-11-26 11:51:36,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2023-11-26 11:51:36,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-26 11:51:36,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-26 11:51:36,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:36,669 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:51:36,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:51:36,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:36,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:51:36,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:51:36,824 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2023-11-26 11:51:36,824 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 74 states and 102 transitions. cyclomatic complexity: 35 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2023-11-26 11:51:36,933 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,937 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,937 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,938 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,938 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,957 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,962 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,962 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,963 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,963 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,981 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,986 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,987 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,987 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,987 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,988 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:36,988 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,007 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,007 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,014 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,015 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,015 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,016 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,016 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,016 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,017 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,017 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,017 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,018 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,018 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,045 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,046 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,051 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,051 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,052 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,052 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,052 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,053 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,053 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,053 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,053 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,058 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,059 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,065 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,065 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,065 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,066 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,066 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,066 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,067 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,067 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,067 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,073 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,074 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,075 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,075 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,082 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,083 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,085 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,085 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,085 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,086 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,086 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,086 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,086 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,087 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,087 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,087 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,088 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,088 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,088 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,093 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-26 11:51:37,095 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,095 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,095 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,102 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-26 11:51:37,103 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-26 11:51:37,105 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,105 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,105 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,106 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,106 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,106 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,106 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,107 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,107 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,107 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,107 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,108 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,108 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,108 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,113 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,113 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,113 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,122 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,122 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,123 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,123 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,123 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,123 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,124 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,124 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,124 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,124 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,124 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,125 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,125 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,125 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,130 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,131 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,139 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,139 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,140 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,140 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,140 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,146 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,147 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,152 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,157 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,157 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,157 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,157 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,158 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,158 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,158 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,163 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,163 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,163 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,164 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,165 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,165 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,166 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,166 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,169 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-26 11:51:37,171 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,171 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,172 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,173 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,173 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,174 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,174 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,175 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,176 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,176 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,176 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,180 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,181 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,182 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,182 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,183 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,184 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,184 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,184 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,185 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,191 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,192 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,192 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,193 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,193 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,194 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,195 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,195 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,197 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,197 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,198 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,198 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,198 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,202 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,202 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,203 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,204 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,209 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,209 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,210 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,210 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,212 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,212 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,216 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,218 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,219 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,229 WARN L278 uchiComplementFKVNwa]: big7 [2023-11-26 11:51:37,230 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,230 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,231 WARN L278 uchiComplementFKVNwa]: big16 [2023-11-26 11:51:37,233 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,234 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,234 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,235 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,239 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,242 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,243 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,243 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,244 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,245 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,253 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,253 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,253 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,265 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,266 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,271 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,271 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,271 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,271 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,272 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,276 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,277 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,277 WARN L278 uchiComplementFKVNwa]: big8 [2023-11-26 11:51:37,287 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 74 states and 102 transitions. cyclomatic complexity: 35 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 4742 states and 8919 transitions. Complement of second has 430 states 13 powerset states417 rank states. The highest rank that occured is 9 [2023-11-26 11:51:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2023-11-26 11:51:37,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2023-11-26 11:51:37,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 34 transitions. [2023-11-26 11:51:37,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 7 letters. Loop has 20 letters. [2023-11-26 11:51:37,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:37,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 27 letters. Loop has 20 letters. [2023-11-26 11:51:37,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:37,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 7 letters. Loop has 40 letters. [2023-11-26 11:51:37,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:51:37,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4742 states and 8919 transitions. [2023-11-26 11:51:37,404 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 11:51:37,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4742 states to 0 states and 0 transitions. [2023-11-26 11:51:37,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 11:51:37,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 11:51:37,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 11:51:37,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:37,404 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:51:37,404 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:51:37,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:37,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-26 11:51:37,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:51:37,405 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 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) [2023-11-26 11:51:37,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:37,405 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-26 11:51:37,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-26 11:51:37,406 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 11:51:37,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:51:37,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 11:51:37,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 11:51:37,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 11:51:37,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:37,406 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:51:37,406 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:51:37,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:51:37,407 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:51:37,407 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-26 11:51:37,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:51:37,407 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 11:51:37,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-26 11:51:37,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 11:51:37 BoogieIcfgContainer [2023-11-26 11:51:37,415 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 11:51:37,416 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:51:37,416 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:51:37,416 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:51:37,417 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:27" (3/4) ... [2023-11-26 11:51:37,418 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:51:37,420 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:51:37,420 INFO L158 Benchmark]: Toolchain (without parser) took 10214.68ms. Allocated memory was 148.9MB in the beginning and 245.4MB in the end (delta: 96.5MB). Free memory was 106.7MB in the beginning and 189.7MB in the end (delta: -83.0MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2023-11-26 11:51:37,421 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory was 68.3MB in the beginning and 68.2MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:37,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.12ms. Allocated memory is still 148.9MB. Free memory was 106.7MB in the beginning and 97.2MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 11:51:37,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.24ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 95.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:37,422 INFO L158 Benchmark]: Boogie Preprocessor took 30.08ms. Allocated memory is still 148.9MB. Free memory was 95.9MB in the beginning and 94.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:37,422 INFO L158 Benchmark]: RCFGBuilder took 278.46ms. Allocated memory is still 148.9MB. Free memory was 94.5MB in the beginning and 86.4MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:51:37,422 INFO L158 Benchmark]: BuchiAutomizer took 9655.99ms. Allocated memory was 148.9MB in the beginning and 245.4MB in the end (delta: 96.5MB). Free memory was 86.4MB in the beginning and 189.7MB in the end (delta: -103.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:37,423 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 245.4MB. Free memory is still 189.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:37,424 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory was 68.3MB in the beginning and 68.2MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.12ms. Allocated memory is still 148.9MB. Free memory was 106.7MB in the beginning and 97.2MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.24ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 95.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.08ms. Allocated memory is still 148.9MB. Free memory was 95.9MB in the beginning and 94.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 278.46ms. Allocated memory is still 148.9MB. Free memory was 94.5MB in the beginning and 86.4MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 9655.99ms. Allocated memory was 148.9MB in the beginning and 245.4MB in the end (delta: 96.5MB). Free memory was 86.4MB in the beginning and 189.7MB in the end (delta: -103.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 245.4MB. Free memory is still 189.7MB. 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 13 terminating modules (5 trivial, 3 deterministic, 5 nondeterministic). One deterministic module has affine ranking function (211 + (-2 * n)) and consists of 4 locations. One deterministic module has affine ranking function (211 + (-2 * n)) and consists of 3 locations. One deterministic module has affine ranking function ((-2 * n) + 201) and consists of 4 locations. One nondeterministic module has affine ranking function (211 + (-2 * n)) and consists of 3 locations. One nondeterministic module has affine ranking function c and consists of 3 locations. One nondeterministic module has affine ranking function ((-2 * n) + 221) and consists of 4 locations. One nondeterministic module has affine ranking function n and consists of 7 locations. One nondeterministic module has affine ranking function c and consists of 9 locations. 5 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.5s and 10 iterations. TraceHistogramMax:10. Analysis of lassos took 5.8s. Construction of modules took 0.2s. Büchi inclusion checks took 3.2s. Highest rank in rank-based complementation 9. Minimization of det autom 2. Minimization of nondet autom 11. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 341 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 1, 3, 0, 2]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 84/100 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 163 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 209 IncrementalHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 130 mSDtfsCounter, 209 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT4 conc0 concLT3 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax165 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 59ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-26 11:51:37,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:37,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-26 11:51:37,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1dc87e1-93a3-4cd3-9be1-6ab5847e752f/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE