./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:38:46,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:38:47,138 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:38:47,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:38:47,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:38:47,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:38:47,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:38:47,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:38:47,202 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:38:47,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:38:47,203 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:38:47,204 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:38:47,205 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:38:47,205 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:38:47,206 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:38:47,207 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:38:47,207 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:38:47,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:38:47,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:38:47,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:38:47,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:38:47,210 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:38:47,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:38:47,211 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:38:47,212 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:38:47,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:38:47,213 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:38:47,214 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:38:47,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:38:47,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:38:47,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:38:47,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:38:47,217 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:38:47,218 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_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 [2023-11-06 22:38:47,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:38:47,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:38:47,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:38:47,574 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:38:47,575 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:38:47,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2023-11-06 22:38:50,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:38:51,023 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:38:51,025 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2023-11-06 22:38:51,039 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/data/1ec3a10f8/6f95c6799f674c0ab3a3221fb0919eaa/FLAG4c1516946 [2023-11-06 22:38:51,060 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/data/1ec3a10f8/6f95c6799f674c0ab3a3221fb0919eaa [2023-11-06 22:38:51,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:38:51,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:38:51,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:38:51,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:38:51,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:38:51,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6a2e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51, skipping insertion in model container [2023-11-06 22:38:51,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,103 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:38:51,276 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:38:51,281 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:38:51,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:38:51,312 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:38:51,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51 WrapperNode [2023-11-06 22:38:51,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:38:51,314 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:38:51,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:38:51,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:38:51,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,329 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,350 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-11-06 22:38:51,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:38:51,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:38:51,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:38:51,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:38:51,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,370 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,378 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,379 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,380 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:38:51,382 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:38:51,382 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:38:51,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:38:51,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51" (1/1) ... [2023-11-06 22:38:51,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:51,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:51,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:51,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:38:51,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:38:51,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:38:51,589 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:38:51,591 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:38:51,664 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:38:51,671 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:38:51,671 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:38:51,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:51 BoogieIcfgContainer [2023-11-06 22:38:51,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:38:51,675 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:38:51,675 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:38:51,680 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:38:51,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:38:51,681 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:38:51" (1/3) ... [2023-11-06 22:38:51,682 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2329cd58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:38:51, skipping insertion in model container [2023-11-06 22:38:51,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:38:51,682 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:38:51" (2/3) ... [2023-11-06 22:38:51,683 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2329cd58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:38:51, skipping insertion in model container [2023-11-06 22:38:51,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:38:51,683 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:51" (3/3) ... [2023-11-06 22:38:51,685 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2023-11-06 22:38:51,746 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:38:51,746 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:38:51,746 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:38:51,747 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:38:51,747 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:38:51,747 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:38:51,747 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:38:51,747 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:38:51,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2023-11-06 22:38:51,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:38:51,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:38:51,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:38:51,775 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:38:51,775 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:38:51,775 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:38:51,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2023-11-06 22:38:51,777 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:38:51,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:38:51,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:38:51,778 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:38:51,778 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:38:51,787 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L17true assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 7#L21-2true [2023-11-06 22:38:51,788 INFO L750 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!(main_~i~0#1 < main_~n~0#1); 5#L21true assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 7#L21-2true [2023-11-06 22:38:51,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:51,795 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-06 22:38:51,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:51,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558678434] [2023-11-06 22:38:51,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:51,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:51,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:38:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:51,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:38:51,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:51,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2023-11-06 22:38:51,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:51,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079250653] [2023-11-06 22:38:51,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:51,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:51,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:38:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:51,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:38:51,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:51,966 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2023-11-06 22:38:51,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:51,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838056944] [2023-11-06 22:38:51,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:51,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:51,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:38:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:51,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:38:52,078 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:38:52,079 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:38:52,079 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:38:52,079 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:38:52,079 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:38:52,080 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:52,080 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:38:52,080 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:38:52,080 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2023-11-06 22:38:52,080 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:38:52,081 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:38:52,101 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:52,114 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:52,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:52,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:52,212 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:38:52,213 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:38:52,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:52,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:52,224 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:52,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:38:52,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:52,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:38:52,253 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:38:52,253 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: [] [2023-11-06 22:38:52,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-06 22:38:52,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:52,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:52,261 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:52,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:38:52,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:38:52,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:52,317 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:38:52,317 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: [] [2023-11-06 22:38:52,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:52,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:52,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:52,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:52,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:38:52,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:52,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:38:52,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:52,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:52,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:52,379 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:52,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:38:52,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:38:52,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:52,561 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:38:52,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-06 22:38:52,564 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:38:52,565 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:38:52,565 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:38:52,565 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:38:52,565 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:38:52,565 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:52,565 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:38:52,566 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:38:52,566 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2023-11-06 22:38:52,566 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:38:52,566 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:38:52,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:52,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:52,579 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:52,589 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:52,645 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:38:52,650 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:38:52,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:52,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:52,654 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:52,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:38:52,665 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 [2023-11-06 22:38:52,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:38:52,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:38:52,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:38:52,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:38:52,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:38:52,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:38:52,725 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:38:52,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:52,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:52,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:52,738 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:52,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:38:52,742 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 [2023-11-06 22:38:52,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:38:52,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:38:52,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:38:52,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:38:52,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:38:52,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:38:52,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:38:52,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:52,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:52,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:52,804 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:52,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:38:52,808 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 [2023-11-06 22:38:52,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:38:52,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:38:52,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:38:52,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:38:52,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:38:52,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:38:52,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:38:52,844 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:38:52,850 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-06 22:38:52,850 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:38:52,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:52,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:52,887 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:52,900 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:38:52,900 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:38:52,900 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:38:52,901 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2023-11-06 22:38:52,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:38:52,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:52,916 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:38:52,959 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:52,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:38:52,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:53,009 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:38:53,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:53,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:53,067 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 [2023-11-06 22:38:53,070 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-06 22:38:53,148 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 6 states. [2023-11-06 22:38:53,153 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 [2023-11-06 22:38:53,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-06 22:38:53,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-06 22:38:53,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-06 22:38:53,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:53,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-06 22:38:53,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:53,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-06 22:38:53,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:53,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-06 22:38:53,183 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:38:53,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 9 states and 12 transitions. [2023-11-06 22:38:53,189 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-06 22:38:53,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-06 22:38:53,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-11-06 22:38:53,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:38:53,191 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-06 22:38:53,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-11-06 22:38:53,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-06 22:38:53,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:53,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 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) [2023-11-06 22:38:53,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-11-06 22:38:53,244 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-06 22:38:53,244 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-06 22:38:53,244 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:38:53,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-11-06 22:38:53,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:38:53,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:38:53,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:38:53,247 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-06 22:38:53,247 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:38:53,247 INFO L748 eck$LassoCheckResult]: Stem: 78#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 79#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 72#L17 assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 73#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 74#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 75#L21-2 [2023-11-06 22:38:53,247 INFO L750 eck$LassoCheckResult]: Loop: 75#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 80#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 75#L21-2 [2023-11-06 22:38:53,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:53,248 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2023-11-06 22:38:53,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:53,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134753687] [2023-11-06 22:38:53,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:53,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:53,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:53,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:53,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134753687] [2023-11-06 22:38:53,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134753687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:53,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:38:53,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:38:53,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667441637] [2023-11-06 22:38:53,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:53,405 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:38:53,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:53,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2023-11-06 22:38:53,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:53,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158722191] [2023-11-06 22:38:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:53,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:53,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:38:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:53,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:38:53,467 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:38:53,467 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:38:53,467 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:38:53,468 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:38:53,468 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:38:53,468 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:53,468 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:38:53,468 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:38:53,468 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2023-11-06 22:38:53,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:38:53,469 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:38:53,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:53,485 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:53,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:53,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:53,561 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:38:53,561 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:38:53,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:53,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:53,563 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:53,568 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:38:53,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:53,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:38:53,596 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:38:53,596 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: [] [2023-11-06 22:38:53,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:53,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:53,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:53,609 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:53,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:38:53,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:38:53,621 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:53,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:53,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:53,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:53,661 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:53,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:38:53,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:53,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:38:53,880 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:38:53,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:53,885 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:38:53,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:38:53,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:38:53,885 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:38:53,886 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:38:53,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:53,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:38:53,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:38:53,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2023-11-06 22:38:53,886 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:38:53,886 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:38:53,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:53,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:53,899 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:53,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:53,965 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:38:53,965 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:38:53,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:53,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:53,967 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:53,979 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 [2023-11-06 22:38:53,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:38:53,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:38:53,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:38:53,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:38:53,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:38:53,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:38:53,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:38:53,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:38:54,012 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:38:54,020 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:38:54,020 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:38:54,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:54,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:54,022 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:54,036 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:38:54,036 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:38:54,036 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:38:54,036 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~m~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-06 22:38:54,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:38:54,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:54,047 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:38:54,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:54,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:38:54,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:54,097 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:38:54,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:54,103 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 [2023-11-06 22:38:54,104 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:38:54,121 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 18 transitions. Complement of second has 5 states. [2023-11-06 22:38:54,122 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 [2023-11-06 22:38:54,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:38:54,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-06 22:38:54,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-06 22:38:54,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:54,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-06 22:38:54,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:54,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-06 22:38:54,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:54,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2023-11-06 22:38:54,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:38:54,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2023-11-06 22:38:54,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 22:38:54,131 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-06 22:38:54,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2023-11-06 22:38:54,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:38:54,132 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-06 22:38:54,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2023-11-06 22:38:54,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-06 22:38:54,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2023-11-06 22:38:54,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-06 22:38:54,137 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-06 22:38:54,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:54,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:38:54,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:38:54,142 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-06 22:38:54,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:38:54,156 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-11-06 22:38:54,156 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-11-06 22:38:54,160 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:38:54,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 14 states and 18 transitions. [2023-11-06 22:38:54,164 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-06 22:38:54,165 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-06 22:38:54,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2023-11-06 22:38:54,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:38:54,165 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-11-06 22:38:54,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2023-11-06 22:38:54,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-06 22:38:54,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 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) [2023-11-06 22:38:54,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2023-11-06 22:38:54,171 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-06 22:38:54,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:38:54,173 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-06 22:38:54,174 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:38:54,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2023-11-06 22:38:54,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-06 22:38:54,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:38:54,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:38:54,177 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1] [2023-11-06 22:38:54,177 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:38:54,178 INFO L748 eck$LassoCheckResult]: Stem: 167#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 168#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 161#L17 assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 162#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 169#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 173#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 172#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 170#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 163#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 164#L21-2 [2023-11-06 22:38:54,179 INFO L750 eck$LassoCheckResult]: Loop: 164#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 171#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 164#L21-2 [2023-11-06 22:38:54,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:54,179 INFO L85 PathProgramCache]: Analyzing trace with hash -446365265, now seen corresponding path program 1 times [2023-11-06 22:38:54,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:54,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148455218] [2023-11-06 22:38:54,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:54,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:54,253 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:38:54,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:54,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148455218] [2023-11-06 22:38:54,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148455218] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:38:54,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695010783] [2023-11-06 22:38:54,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:54,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:38:54,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:54,256 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:38:54,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:38:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:54,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:38:54,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:38:54,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:38:54,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695010783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:54,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:38:54,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 22:38:54,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543011486] [2023-11-06 22:38:54,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:54,327 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:38:54,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:54,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 3 times [2023-11-06 22:38:54,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:54,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657591499] [2023-11-06 22:38:54,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:54,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:54,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:38:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:54,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:38:54,371 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:38:54,371 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:38:54,371 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:38:54,371 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:38:54,371 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:38:54,371 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:54,371 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:38:54,371 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:38:54,371 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2023-11-06 22:38:54,372 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:38:54,372 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:38:54,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:54,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:54,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:54,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:54,443 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:38:54,443 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:38:54,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:54,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:54,448 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:54,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:38:54,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:54,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:38:54,478 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:38:54,478 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~i~0#1=0} Honda state: {ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~i~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:38:54,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:54,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:54,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:54,486 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:54,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:38:54,502 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:38:54,502 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:54,523 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:38:54,524 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:38:54,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:54,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:54,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:54,538 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:54,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:38:54,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:54,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:38:54,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:54,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:54,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:54,577 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:54,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 22:38:54,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:38:54,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:54,811 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:38:54,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:54,822 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:38:54,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:38:54,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:38:54,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:38:54,822 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:38:54,822 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:54,822 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:38:54,822 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:38:54,823 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2023-11-06 22:38:54,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:38:54,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:38:54,824 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:54,831 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:54,835 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:54,843 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:54,905 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:38:54,905 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:38:54,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:54,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:54,907 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:54,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 22:38:54,920 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 [2023-11-06 22:38:54,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:38:54,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:38:54,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:38:54,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:38:54,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:38:54,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:38:54,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:38:54,940 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:38:54,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:54,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:54,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:54,945 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:54,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 22:38:54,948 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 [2023-11-06 22:38:54,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:38:54,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:38:54,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:38:54,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:38:54,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:38:54,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:38:54,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:38:54,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:54,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:54,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:54,999 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:55,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 22:38:55,004 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 [2023-11-06 22:38:55,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:38:55,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:38:55,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:38:55,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:38:55,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:38:55,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:38:55,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:38:55,028 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:38:55,032 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:38:55,033 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:38:55,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:55,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:55,040 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:55,042 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:38:55,042 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:38:55,042 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:38:55,042 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2023-11-06 22:38:55,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-06 22:38:55,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:55,051 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:38:55,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:55,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:38:55,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:55,126 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:38:55,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:55,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:55,131 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 [2023-11-06 22:38:55,132 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:38:55,144 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 21 transitions. Complement of second has 5 states. [2023-11-06 22:38:55,144 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 [2023-11-06 22:38:55,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:38:55,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-06 22:38:55,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-06 22:38:55,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:55,148 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:38:55,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:55,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:38:55,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:55,200 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:38:55,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:55,207 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 [2023-11-06 22:38:55,207 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:38:55,216 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 21 transitions. Complement of second has 5 states. [2023-11-06 22:38:55,216 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 [2023-11-06 22:38:55,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:38:55,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-06 22:38:55,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-06 22:38:55,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:55,218 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:38:55,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:55,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:38:55,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:55,259 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:38:55,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:55,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:38:55,264 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 [2023-11-06 22:38:55,264 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:38:55,274 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 24 transitions. Complement of second has 4 states. [2023-11-06 22:38:55,274 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 [2023-11-06 22:38:55,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:38:55,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-06 22:38:55,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-06 22:38:55,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:55,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2023-11-06 22:38:55,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:55,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-06 22:38:55,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:55,277 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2023-11-06 22:38:55,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:38:55,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 20 transitions. [2023-11-06 22:38:55,278 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-06 22:38:55,279 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-06 22:38:55,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2023-11-06 22:38:55,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:38:55,279 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-06 22:38:55,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2023-11-06 22:38:55,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 8. [2023-11-06 22:38:55,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) 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) [2023-11-06 22:38:55,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-11-06 22:38:55,281 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-06 22:38:55,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:55,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:38:55,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:38:55,282 INFO L87 Difference]: Start difference. First operand 8 states and 10 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) 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) [2023-11-06 22:38:55,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:38:55,300 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2023-11-06 22:38:55,300 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2023-11-06 22:38:55,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 22:38:55,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 10 transitions. [2023-11-06 22:38:55,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-06 22:38:55,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-06 22:38:55,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2023-11-06 22:38:55,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:38:55,302 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-06 22:38:55,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2023-11-06 22:38:55,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2023-11-06 22:38:55,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 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) [2023-11-06 22:38:55,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2023-11-06 22:38:55,303 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-11-06 22:38:55,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:38:55,305 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-11-06 22:38:55,305 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:38:55,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2023-11-06 22:38:55,305 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:38:55,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:38:55,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:38:55,306 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:38:55,306 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-06 22:38:55,306 INFO L748 eck$LassoCheckResult]: Stem: 394#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 395#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 389#L17 assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 390#L21-2 [2023-11-06 22:38:55,306 INFO L750 eck$LassoCheckResult]: Loop: 390#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 392#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 393#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 391#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 390#L21-2 [2023-11-06 22:38:55,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:55,307 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2023-11-06 22:38:55,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:55,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458531621] [2023-11-06 22:38:55,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:55,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:55,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:38:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:55,320 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:38:55,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:55,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1357385, now seen corresponding path program 1 times [2023-11-06 22:38:55,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:55,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556754124] [2023-11-06 22:38:55,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:55,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:55,334 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:38:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:55,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:38:55,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:55,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1805120106, now seen corresponding path program 2 times [2023-11-06 22:38:55,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:55,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017310406] [2023-11-06 22:38:55,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:55,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:55,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:38:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:55,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:38:55,456 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:38:55,456 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:38:55,456 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:38:55,456 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:38:55,456 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:38:55,456 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:55,456 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:38:55,457 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:38:55,457 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2023-11-06 22:38:55,457 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:38:55,457 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:38:55,459 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:55,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:55,470 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:55,478 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:55,543 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:38:55,543 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:38:55,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:55,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:55,544 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:55,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:38:55,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:55,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-06 22:38:55,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:55,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:55,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:55,581 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:55,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:38:55,586 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:38:55,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-06 22:38:55,792 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:38:55,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:55,801 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:38:55,801 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:38:55,801 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:38:55,801 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:38:55,801 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:38:55,801 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:55,802 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:38:55,802 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:38:55,802 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2023-11-06 22:38:55,802 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:38:55,802 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:38:55,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:55,813 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:55,818 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:55,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:38:55,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:55,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:55,925 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:38:55,925 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:38:55,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:55,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:55,927 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:55,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:38:55,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-06 22:38:55,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:38:55,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:38:55,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:38:55,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:38:55,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:38:55,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:38:55,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:38:55,968 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:38:55,983 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-06 22:38:55,983 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:38:55,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:38:55,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:38:55,986 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:38:55,993 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:38:55,993 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:38:55,993 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:38:55,993 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2023-11-06 22:38:55,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-06 22:38:56,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:56,003 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:38:56,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:56,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:38:56,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:56,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:38:56,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:38:56,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:38:56,080 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 [2023-11-06 22:38:56,080 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:38:56,103 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 15 transitions. Complement of second has 4 states. [2023-11-06 22:38:56,103 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 [2023-11-06 22:38:56,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:38:56,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-06 22:38:56,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-06 22:38:56,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:56,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-06 22:38:56,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:56,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-06 22:38:56,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:38:56,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2023-11-06 22:38:56,107 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:38:56,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-11-06 22:38:56,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:38:56,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:38:56,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:38:56,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:56,108 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:38:56,108 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:38:56,108 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:38:56,109 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:38:56,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:38:56,109 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:38:56,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:38:56,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:38:56 BoogieIcfgContainer [2023-11-06 22:38:56,118 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:38:56,119 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:38:56,119 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:38:56,119 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:38:56,120 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:51" (3/4) ... [2023-11-06 22:38:56,122 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:38:56,124 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:38:56,125 INFO L158 Benchmark]: Toolchain (without parser) took 5055.61ms. Allocated memory is still 163.6MB. Free memory was 133.2MB in the beginning and 122.0MB in the end (delta: 11.3MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2023-11-06 22:38:56,125 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:38:56,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.30ms. Allocated memory is still 163.6MB. Free memory was 133.2MB in the beginning and 123.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:38:56,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.80ms. Allocated memory is still 163.6MB. Free memory was 123.6MB in the beginning and 122.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:38:56,127 INFO L158 Benchmark]: Boogie Preprocessor took 28.79ms. Allocated memory is still 163.6MB. Free memory was 122.3MB in the beginning and 121.5MB in the end (delta: 811.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:38:56,127 INFO L158 Benchmark]: RCFGBuilder took 292.34ms. Allocated memory is still 163.6MB. Free memory was 121.5MB in the beginning and 113.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:38:56,128 INFO L158 Benchmark]: BuchiAutomizer took 4443.38ms. Allocated memory is still 163.6MB. Free memory was 113.1MB in the beginning and 122.0MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:38:56,128 INFO L158 Benchmark]: Witness Printer took 4.97ms. Allocated memory is still 163.6MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:38:56,130 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.30ms. Allocated memory is still 163.6MB. Free memory was 133.2MB in the beginning and 123.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.80ms. Allocated memory is still 163.6MB. Free memory was 123.6MB in the beginning and 122.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.79ms. Allocated memory is still 163.6MB. Free memory was 122.3MB in the beginning and 121.5MB in the end (delta: 811.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 292.34ms. Allocated memory is still 163.6MB. Free memory was 121.5MB in the beginning and 113.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4443.38ms. Allocated memory is still 163.6MB. Free memory was 113.1MB in the beginning and 122.0MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.97ms. Allocated memory is still 163.6MB. Free memory is still 122.0MB. 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 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((-1 * j) + m) and consists of 4 locations. One deterministic module has affine ranking function ((-1 * j) + m) and consists of 3 locations. One deterministic module has affine ranking function ((-1 * i) + n) and consists of 3 locations. One nondeterministic module has affine ranking function ((-1 * j) + m) and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 52 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax167 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 73ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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! [2023-11-06 22:38:56,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:56,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:38:56,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c31a3d-4212-46f0-bb1d-debb6fe7db53/bin/uautomizer-verify-WvqO1wxjHP/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