./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/bh2017-ex1-poly.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/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_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/bh2017-ex1-poly.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/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 32bit --witnessprinter.graph.data.programhash d6dbcbf51695ea037a123bcc006ce5f6db095b874a22b169ec869d834ce41de6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:13:14,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:13:14,141 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 22:13:14,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:13:14,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:13:14,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:13:14,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:13:14,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:13:14,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:13:14,176 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:13:14,177 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:13:14,177 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:13:14,178 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:13:14,178 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:13:14,179 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:13:14,179 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:13:14,180 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:13:14,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:13:14,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:13:14,181 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:13:14,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:13:14,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:13:14,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:13:14,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:13:14,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:13:14,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:13:14,184 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:13:14,184 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:13:14,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:13:14,185 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:13:14,185 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:13:14,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:13:14,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:13:14,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:13:14,187 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:13:14,187 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:13:14,187 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_dd25f074-2933-44ee-8b6a-89b29bf7934f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6dbcbf51695ea037a123bcc006ce5f6db095b874a22b169ec869d834ce41de6 [2023-11-06 22:13:14,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:13:14,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:13:14,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:13:14,462 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:13:14,463 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:13:14,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/loop-lit/bh2017-ex1-poly.i [2023-11-06 22:13:17,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:13:17,907 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:13:17,907 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/sv-benchmarks/c/loop-lit/bh2017-ex1-poly.i [2023-11-06 22:13:17,915 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/data/46974ff99/0e7c4656077b485397973911942642ae/FLAGaeafd4f5b [2023-11-06 22:13:17,931 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/data/46974ff99/0e7c4656077b485397973911942642ae [2023-11-06 22:13:17,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:13:17,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:13:17,937 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:13:17,937 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:13:17,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:13:17,943 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:13:17" (1/1) ... [2023-11-06 22:13:17,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6816717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:17, skipping insertion in model container [2023-11-06 22:13:17,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:13:17" (1/1) ... [2023-11-06 22:13:17,967 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:13:18,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:13:18,135 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:13:18,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:13:18,162 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:13:18,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18 WrapperNode [2023-11-06 22:13:18,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:13:18,164 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:13:18,164 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:13:18,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:13:18,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18" (1/1) ... [2023-11-06 22:13:18,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18" (1/1) ... [2023-11-06 22:13:18,196 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 11, calls inlined = 18, statements flattened = 98 [2023-11-06 22:13:18,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:13:18,197 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:13:18,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:13:18,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:13:18,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18" (1/1) ... [2023-11-06 22:13:18,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18" (1/1) ... [2023-11-06 22:13:18,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18" (1/1) ... [2023-11-06 22:13:18,209 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18" (1/1) ... [2023-11-06 22:13:18,213 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18" (1/1) ... [2023-11-06 22:13:18,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18" (1/1) ... [2023-11-06 22:13:18,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18" (1/1) ... [2023-11-06 22:13:18,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18" (1/1) ... [2023-11-06 22:13:18,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:13:18,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:13:18,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:13:18,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:13:18,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18" (1/1) ... [2023-11-06 22:13:18,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:18,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:18,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:18,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:13:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:13:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:13:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:13:18,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:13:18,407 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:13:18,410 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:13:18,674 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:13:18,680 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:13:18,681 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:13:18,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:13:18 BoogieIcfgContainer [2023-11-06 22:13:18,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:13:18,685 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:13:18,685 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:13:18,689 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:13:18,690 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:13:18,691 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:13:17" (1/3) ... [2023-11-06 22:13:18,692 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68eb2894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:13:18, skipping insertion in model container [2023-11-06 22:13:18,692 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:13:18,692 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:13:18" (2/3) ... [2023-11-06 22:13:18,693 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68eb2894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:13:18, skipping insertion in model container [2023-11-06 22:13:18,693 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:13:18,693 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:13:18" (3/3) ... [2023-11-06 22:13:18,695 INFO L332 chiAutomizerObserver]: Analyzing ICFG bh2017-ex1-poly.i [2023-11-06 22:13:18,747 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:13:18,747 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:13:18,747 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:13:18,747 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:13:18,747 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:13:18,747 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:13:18,747 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:13:18,748 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:13:18,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 48 states have internal predecessors, (68), 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 22:13:18,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2023-11-06 22:13:18,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:13:18,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:13:18,776 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:13:18,776 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:18,777 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:13:18,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 48 states have internal predecessors, (68), 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 22:13:18,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2023-11-06 22:13:18,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:13:18,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:13:18,782 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:13:18,783 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:18,791 INFO L748 eck$LassoCheckResult]: Stem: 17#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(14, 2); 24#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~j~0#1, main_~i~0#1;main_~i~0#1 := 0; 46#L16-2true [2023-11-06 22:13:18,792 INFO L750 eck$LassoCheckResult]: Loop: 46#L16-2true assume !!(main_~i~0#1 < 4);main_~j~0#1 := 0; 28#L18-2true assume !(main_~j~0#1 < 3); 30#L18-3true assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 23#L13-16true assume !(0 == __VERIFIER_assert_~cond#1); 13#L13-19true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 50#L13-20true assume !(0 == __VERIFIER_assert_~cond#1); 39#L13-23true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 2 * main_~i~0#1 <= 6 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 34#L13-24true assume !(0 == __VERIFIER_assert_~cond#1); 18#L13-27true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 25#L13-28true assume !(0 == __VERIFIER_assert_~cond#1); 42#L13-31true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_~i~0#1 := 1 + (main_~i~0#1 - (if main_~j~0#1 < 0 && 0 != main_~j~0#1 % 2 then 1 + main_~j~0#1 / 2 else main_~j~0#1 / 2));havoc main_~j~0#1; 46#L16-2true [2023-11-06 22:13:18,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:18,798 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:13:18,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:18,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286855817] [2023-11-06 22:13:18,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:18,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:18,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:18,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:18,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:18,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1135295544, now seen corresponding path program 1 times [2023-11-06 22:13:18,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:18,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434343755] [2023-11-06 22:13:18,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:18,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:19,095 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 22:13:19,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:13:19,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434343755] [2023-11-06 22:13:19,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434343755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:13:19,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:13:19,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:13:19,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195786526] [2023-11-06 22:13:19,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:13:19,102 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:13:19,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:13:19,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:13:19,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:13:19,150 INFO L87 Difference]: Start difference. First operand has 49 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 48 states have internal predecessors, (68), 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 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:19,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:13:19,198 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2023-11-06 22:13:19,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 43 transitions. [2023-11-06 22:13:19,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 20 [2023-11-06 22:13:19,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 22 states and 23 transitions. [2023-11-06 22:13:19,207 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2023-11-06 22:13:19,208 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-06 22:13:19,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 23 transitions. [2023-11-06 22:13:19,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:13:19,209 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-11-06 22:13:19,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 23 transitions. [2023-11-06 22:13:19,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-06 22:13:19,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:19,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-11-06 22:13:19,245 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-11-06 22:13:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:13:19,250 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-11-06 22:13:19,251 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:13:19,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 23 transitions. [2023-11-06 22:13:19,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 20 [2023-11-06 22:13:19,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:13:19,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:13:19,253 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:13:19,253 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:19,253 INFO L748 eck$LassoCheckResult]: Stem: 118#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(14, 2); 107#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~j~0#1, main_~i~0#1;main_~i~0#1 := 0; 108#L16-2 [2023-11-06 22:13:19,254 INFO L750 eck$LassoCheckResult]: Loop: 108#L16-2 assume !!(main_~i~0#1 < 4);main_~j~0#1 := 0; 115#L18-2 assume !!(main_~j~0#1 < 3);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_~j~0#1 := 2 + main_~j~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 114#L13 assume !(0 == __VERIFIER_assert_~cond#1); 105#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 106#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 111#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 2 * main_~i~0#1 <= 6 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 112#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 113#L13-11 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 116#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 120#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 121#L18-2 assume !(main_~j~0#1 < 3); 117#L18-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 102#L13-16 assume !(0 == __VERIFIER_assert_~cond#1); 100#L13-19 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 101#L13-20 assume !(0 == __VERIFIER_assert_~cond#1); 103#L13-23 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 2 * main_~i~0#1 <= 6 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 104#L13-24 assume !(0 == __VERIFIER_assert_~cond#1); 119#L13-27 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 110#L13-28 assume !(0 == __VERIFIER_assert_~cond#1); 109#L13-31 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_~i~0#1 := 1 + (main_~i~0#1 - (if main_~j~0#1 < 0 && 0 != main_~j~0#1 % 2 then 1 + main_~j~0#1 / 2 else main_~j~0#1 / 2));havoc main_~j~0#1; 108#L16-2 [2023-11-06 22:13:19,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:19,255 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-06 22:13:19,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:19,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600465227] [2023-11-06 22:13:19,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:19,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:19,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:19,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:19,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:19,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1841154240, now seen corresponding path program 1 times [2023-11-06 22:13:19,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:19,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931724160] [2023-11-06 22:13:19,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:19,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:19,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:19,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:13:19,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931724160] [2023-11-06 22:13:19,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931724160] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:13:19,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928705671] [2023-11-06 22:13:19,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:19,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:13:19,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:19,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:13:19,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:13:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:19,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:13:19,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:19,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:19,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:13:19,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:19,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928705671] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:13:19,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:13:19,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-11-06 22:13:19,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109798986] [2023-11-06 22:13:19,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:13:19,567 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:13:19,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:13:19,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:13:19,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:13:19,568 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:13:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:13:19,603 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2023-11-06 22:13:19,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 32 transitions. [2023-11-06 22:13:19,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2023-11-06 22:13:19,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 32 transitions. [2023-11-06 22:13:19,607 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2023-11-06 22:13:19,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2023-11-06 22:13:19,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 32 transitions. [2023-11-06 22:13:19,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:13:19,608 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 32 transitions. [2023-11-06 22:13:19,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 32 transitions. [2023-11-06 22:13:19,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-06 22:13:19,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.032258064516129) internal successors, (32), 30 states have internal predecessors, (32), 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 22:13:19,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2023-11-06 22:13:19,616 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 32 transitions. [2023-11-06 22:13:19,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:13:19,618 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 32 transitions. [2023-11-06 22:13:19,619 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:13:19,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 32 transitions. [2023-11-06 22:13:19,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2023-11-06 22:13:19,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:13:19,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:13:19,625 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:13:19,625 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:19,625 INFO L748 eck$LassoCheckResult]: Stem: 293#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(14, 2); 281#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~j~0#1, main_~i~0#1;main_~i~0#1 := 0; 282#L16-2 [2023-11-06 22:13:19,626 INFO L750 eck$LassoCheckResult]: Loop: 282#L16-2 assume !!(main_~i~0#1 < 4);main_~j~0#1 := 0; 290#L18-2 assume !!(main_~j~0#1 < 3);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_~j~0#1 := 2 + main_~j~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 288#L13 assume !(0 == __VERIFIER_assert_~cond#1); 289#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 304#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 303#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 2 * main_~i~0#1 <= 6 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 302#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 301#L13-11 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 300#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 295#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 296#L18-2 assume !!(main_~j~0#1 < 3);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_~j~0#1 := 2 + main_~j~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 299#L13 assume !(0 == __VERIFIER_assert_~cond#1); 279#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 280#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 285#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 2 * main_~i~0#1 <= 6 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 286#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 287#L13-11 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 291#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 297#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 298#L18-2 assume !(main_~j~0#1 < 3); 292#L18-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 276#L13-16 assume !(0 == __VERIFIER_assert_~cond#1); 274#L13-19 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 275#L13-20 assume !(0 == __VERIFIER_assert_~cond#1); 277#L13-23 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 2 * main_~i~0#1 <= 6 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 278#L13-24 assume !(0 == __VERIFIER_assert_~cond#1); 294#L13-27 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 283#L13-28 assume !(0 == __VERIFIER_assert_~cond#1); 284#L13-31 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_~i~0#1 := 1 + (main_~i~0#1 - (if main_~j~0#1 < 0 && 0 != main_~j~0#1 % 2 then 1 + main_~j~0#1 / 2 else main_~j~0#1 / 2));havoc main_~j~0#1; 282#L16-2 [2023-11-06 22:13:19,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:19,627 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-11-06 22:13:19,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:19,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890566553] [2023-11-06 22:13:19,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:19,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:19,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:19,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:19,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:19,645 INFO L85 PathProgramCache]: Analyzing trace with hash -257874632, now seen corresponding path program 2 times [2023-11-06 22:13:19,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:19,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744155270] [2023-11-06 22:13:19,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:19,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:19,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:19,864 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:19,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:19,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2038304950, now seen corresponding path program 1 times [2023-11-06 22:13:19,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:19,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460670536] [2023-11-06 22:13:19,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:19,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:19,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:19,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:20,606 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:13:20,606 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:13:20,607 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:13:20,607 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:13:20,607 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:13:20,607 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:20,607 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:13:20,607 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:13:20,608 INFO L133 ssoRankerPreferences]: Filename of dumped script: bh2017-ex1-poly.i_Iteration3_Loop [2023-11-06 22:13:20,608 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:13:20,608 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:13:20,626 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 22:13:20,640 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 22:13:20,642 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 22:13:20,645 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 22:13:20,648 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 22:13:20,689 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:13:20,689 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:13:20,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:20,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:20,721 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:20,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:13:20,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:13:20,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:13:20,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-06 22:13:20,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:20,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:20,769 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:20,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:13:20,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:13:20,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:13:20,836 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:13:20,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:20,841 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:13:20,841 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:13:20,841 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:13:20,841 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:13:20,841 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:13:20,842 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:20,842 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:13:20,842 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:13:20,842 INFO L133 ssoRankerPreferences]: Filename of dumped script: bh2017-ex1-poly.i_Iteration3_Loop [2023-11-06 22:13:20,842 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:13:20,842 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:13:20,843 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 22:13:20,853 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 22:13:20,856 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:13:20,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:13:20,865 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 22:13:20,902 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:13:20,907 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:13:20,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:20,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:20,911 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:20,924 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 22:13:20,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:13:20,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:13:20,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:13:20,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:13:20,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:13:20,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:13:20,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:13:20,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:13:20,946 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:13:20,972 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:13:20,972 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:13:20,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:20,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:20,993 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:21,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:13:21,002 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:13:21,002 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:13:21,003 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:13:21,003 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 7 Supporting invariants [] [2023-11-06 22:13:21,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:21,015 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:13:21,036 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:21,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:13:21,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:21,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:13:21,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:21,466 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-06 22:13:21,470 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 32 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 22:13:21,543 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 32 transitions. cyclomatic complexity: 2. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 87 states and 90 transitions. Complement of second has 7 states. [2023-11-06 22:13:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:13:21,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 22:13:21,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2023-11-06 22:13:21,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 29 letters. [2023-11-06 22:13:21,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:13:21,549 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:13:21,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:21,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:13:21,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:21,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:13:21,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:21,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:13:21,891 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-06 22:13:21,891 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 32 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 22:13:22,028 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 32 transitions. cyclomatic complexity: 2. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 60 states and 63 transitions. Complement of second has 10 states. [2023-11-06 22:13:22,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-06 22:13:22,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 22:13:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions. [2023-11-06 22:13:22,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 2 letters. Loop has 29 letters. [2023-11-06 22:13:22,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:13:22,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 31 letters. Loop has 29 letters. [2023-11-06 22:13:22,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:13:22,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 2 letters. Loop has 58 letters. [2023-11-06 22:13:22,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:13:22,033 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 63 transitions. [2023-11-06 22:13:22,035 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 22:13:22,037 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 51 states and 54 transitions. [2023-11-06 22:13:22,037 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-06 22:13:22,037 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-06 22:13:22,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 54 transitions. [2023-11-06 22:13:22,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:13:22,038 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 54 transitions. [2023-11-06 22:13:22,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 54 transitions. [2023-11-06 22:13:22,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 41. [2023-11-06 22:13:22,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.0731707317073171) internal successors, (44), 40 states have internal predecessors, (44), 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 22:13:22,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2023-11-06 22:13:22,043 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 44 transitions. [2023-11-06 22:13:22,043 INFO L428 stractBuchiCegarLoop]: Abstraction has 41 states and 44 transitions. [2023-11-06 22:13:22,043 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:13:22,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 44 transitions. [2023-11-06 22:13:22,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 22:13:22,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:13:22,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:13:22,045 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-06 22:13:22,045 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:22,045 INFO L748 eck$LassoCheckResult]: Stem: 708#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(14, 2); 689#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~j~0#1, main_~i~0#1;main_~i~0#1 := 0; 690#L16-2 assume !!(main_~i~0#1 < 4);main_~j~0#1 := 0; 703#L18-2 [2023-11-06 22:13:22,046 INFO L750 eck$LassoCheckResult]: Loop: 703#L18-2 assume !!(main_~j~0#1 < 3);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_~j~0#1 := 2 + main_~j~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 700#L13 assume !(0 == __VERIFIER_assert_~cond#1); 685#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 686#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 694#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 2 * main_~i~0#1 <= 6 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 695#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 698#L13-11 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 705#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 710#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 703#L18-2 [2023-11-06 22:13:22,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:22,046 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-06 22:13:22,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:22,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270812410] [2023-11-06 22:13:22,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:22,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:22,052 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:22,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:22,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:22,058 INFO L85 PathProgramCache]: Analyzing trace with hash 507021115, now seen corresponding path program 1 times [2023-11-06 22:13:22,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:22,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393082076] [2023-11-06 22:13:22,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:22,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:22,069 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:22,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:22,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:22,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1050452364, now seen corresponding path program 1 times [2023-11-06 22:13:22,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:22,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036947871] [2023-11-06 22:13:22,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:22,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:22,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:22,101 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:22,220 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:13:22,221 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:13:22,221 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:13:22,221 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:13:22,221 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:13:22,221 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:22,222 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:13:22,222 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:13:22,222 INFO L133 ssoRankerPreferences]: Filename of dumped script: bh2017-ex1-poly.i_Iteration4_Loop [2023-11-06 22:13:22,222 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:13:22,222 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:13:22,223 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 22:13:22,226 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 22:13:22,228 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 22:13:22,241 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 22:13:22,280 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:13:22,280 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:13:22,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:22,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:22,282 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:22,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:13:22,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:13:22,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:13:22,327 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:13:22,327 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:13:22,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:22,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:22,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:22,335 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:22,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:13:22,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:13:22,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:13:22,364 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:13:22,365 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:13:22,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:22,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:22,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:22,379 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:22,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:13:22,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:13:22,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:13:22,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:22,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:22,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:22,427 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:22,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:13:22,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:13:22,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:13:22,476 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:13:22,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:22,486 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:13:22,486 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:13:22,486 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:13:22,486 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:13:22,486 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:13:22,486 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:22,486 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:13:22,486 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:13:22,486 INFO L133 ssoRankerPreferences]: Filename of dumped script: bh2017-ex1-poly.i_Iteration4_Loop [2023-11-06 22:13:22,486 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:13:22,487 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:13:22,487 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 22:13:22,490 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 22:13:22,504 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 22:13:22,506 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 22:13:22,553 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:13:22,553 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:13:22,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:22,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:22,554 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:22,568 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 22:13:22,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:13:22,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:13:22,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:13:22,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:13:22,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:13:22,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:13:22,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:13:22,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:13:22,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:13:22,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:22,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:22,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:22,596 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:22,607 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 22:13:22,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:13:22,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:13:22,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:13:22,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:13:22,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:13:22,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:13:22,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:13:22,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:13:22,642 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:13:22,646 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:13:22,646 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:13:22,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:22,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:22,648 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:22,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:13:22,652 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:13:22,653 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:13:22,653 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:13:22,653 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 3 Supporting invariants [] [2023-11-06 22:13:22,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:22,658 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:13:22,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:22,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:13:22,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:22,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:13:22,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:22,747 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 22:13:22,748 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 22:13:22,748 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 44 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 22:13:22,783 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 44 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 112 states and 116 transitions. Complement of second has 5 states. [2023-11-06 22:13:22,785 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 22:13:22,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 22:13:22,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2023-11-06 22:13:22,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 3 letters. Loop has 9 letters. [2023-11-06 22:13:22,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:13:22,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 12 letters. Loop has 9 letters. [2023-11-06 22:13:22,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:13:22,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 3 letters. Loop has 18 letters. [2023-11-06 22:13:22,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:13:22,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 116 transitions. [2023-11-06 22:13:22,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 22:13:22,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 77 states and 80 transitions. [2023-11-06 22:13:22,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-06 22:13:22,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-06 22:13:22,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 80 transitions. [2023-11-06 22:13:22,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:13:22,794 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77 states and 80 transitions. [2023-11-06 22:13:22,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 80 transitions. [2023-11-06 22:13:22,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 60. [2023-11-06 22:13:22,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.05) internal successors, (63), 59 states have internal predecessors, (63), 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 22:13:22,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2023-11-06 22:13:22,800 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 63 transitions. [2023-11-06 22:13:22,800 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 63 transitions. [2023-11-06 22:13:22,800 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:13:22,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 63 transitions. [2023-11-06 22:13:22,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-06 22:13:22,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:13:22,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:13:22,802 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:22,802 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:13:22,803 INFO L748 eck$LassoCheckResult]: Stem: 917#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(14, 2); 898#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~j~0#1, main_~i~0#1;main_~i~0#1 := 0; 899#L16-2 assume !!(main_~i~0#1 < 4);main_~j~0#1 := 0; 918#L18-2 assume !!(main_~j~0#1 < 3);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_~j~0#1 := 2 + main_~j~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 910#L13 assume !(0 == __VERIFIER_assert_~cond#1); 896#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 897#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 905#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 2 * main_~i~0#1 <= 6 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 906#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 908#L13-11 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 915#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 923#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 942#L18-2 assume !!(main_~j~0#1 < 3);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_~j~0#1 := 2 + main_~j~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 939#L13 assume !(0 == __VERIFIER_assert_~cond#1); 940#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 935#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 936#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 2 * main_~i~0#1 <= 6 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 931#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 932#L13-11 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 927#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 928#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 924#L18-2 assume !(main_~j~0#1 < 3); 916#L18-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 891#L13-16 assume !(0 == __VERIFIER_assert_~cond#1); 889#L13-19 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 890#L13-20 assume !(0 == __VERIFIER_assert_~cond#1); 892#L13-23 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 2 * main_~i~0#1 <= 6 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 893#L13-24 assume !(0 == __VERIFIER_assert_~cond#1); 919#L13-27 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 900#L13-28 assume !(0 == __VERIFIER_assert_~cond#1); 901#L13-31 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_~i~0#1 := 1 + (main_~i~0#1 - (if main_~j~0#1 < 0 && 0 != main_~j~0#1 % 2 then 1 + main_~j~0#1 / 2 else main_~j~0#1 / 2));havoc main_~j~0#1; 902#L16-2 assume !!(main_~i~0#1 < 4);main_~j~0#1 := 0; 911#L18-2 [2023-11-06 22:13:22,803 INFO L750 eck$LassoCheckResult]: Loop: 911#L18-2 assume !!(main_~j~0#1 < 3);main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1;main_~j~0#1 := 2 + main_~j~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 909#L13 assume !(0 == __VERIFIER_assert_~cond#1); 894#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 895#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 903#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 2 * main_~i~0#1 <= 6 + main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 904#L13-8 assume !(0 == __VERIFIER_assert_~cond#1); 907#L13-11 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 <= 4 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 914#L13-12 assume !(0 == __VERIFIER_assert_~cond#1); 920#L13-15 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 911#L18-2 [2023-11-06 22:13:22,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:22,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1237055979, now seen corresponding path program 2 times [2023-11-06 22:13:22,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:22,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188141822] [2023-11-06 22:13:22,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:22,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:22,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:22,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:22,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:22,879 INFO L85 PathProgramCache]: Analyzing trace with hash 507021115, now seen corresponding path program 2 times [2023-11-06 22:13:22,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:22,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738457113] [2023-11-06 22:13:22,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:22,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:22,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:22,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:22,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:22,915 INFO L85 PathProgramCache]: Analyzing trace with hash 47716263, now seen corresponding path program 3 times [2023-11-06 22:13:22,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:13:22,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153151914] [2023-11-06 22:13:22,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:13:22,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:13:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:22,964 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:13:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:13:22,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:13:23,110 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:13:23,111 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:13:23,111 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:13:23,111 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:13:23,111 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:13:23,111 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:23,111 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:13:23,111 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:13:23,111 INFO L133 ssoRankerPreferences]: Filename of dumped script: bh2017-ex1-poly.i_Iteration5_Loop [2023-11-06 22:13:23,111 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:13:23,111 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:13:23,112 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 22:13:23,115 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 22:13:23,117 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 22:13:23,119 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 22:13:23,176 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:13:23,176 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:13:23,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:23,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:23,177 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:23,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:13:23,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-06 22:13:23,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:13:23,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:13:23,247 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:13:23,247 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:13:23,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:23,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:23,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:23,257 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:23,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:13:23,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:13:23,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:13:23,295 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:13:23,295 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:13:23,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:23,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:23,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:23,304 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:23,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:13:23,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:13:23,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:13:23,333 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:13:23,333 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:13:23,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:23,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:23,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:23,343 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:23,346 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:13:23,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:13:23,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:13:23,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:23,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:23,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:23,383 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:23,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:13:23,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:13:23,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:13:23,503 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:13:23,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:23,512 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:13:23,512 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:13:23,512 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:13:23,513 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:13:23,513 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:13:23,513 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:23,513 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:13:23,513 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:13:23,513 INFO L133 ssoRankerPreferences]: Filename of dumped script: bh2017-ex1-poly.i_Iteration5_Loop [2023-11-06 22:13:23,513 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:13:23,513 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:13:23,515 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 22:13:23,517 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 22:13:23,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:13:23,534 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 22:13:23,582 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:13:23,582 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:13:23,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:23,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:23,584 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:23,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 22:13:23,593 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 22:13:23,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:13:23,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:13:23,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:13:23,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:13:23,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:13:23,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:13:23,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:13:23,618 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:13:23,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:23,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:23,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:23,624 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:23,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 22:13:23,633 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 22:13:23,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:13:23,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:13:23,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:13:23,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:13:23,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:13:23,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:13:23,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:13:23,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:13:23,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:23,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:23,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:23,681 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:23,697 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 22:13:23,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:13:23,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:13:23,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:13:23,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:13:23,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:13:23,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:13:23,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:13:23,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 22:13:23,738 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:13:23,742 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:13:23,742 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:13:23,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:13:23,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:13:23,743 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:13:23,751 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:13:23,752 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:13:23,752 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:13:23,752 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 3 Supporting invariants [] [2023-11-06 22:13:23,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 22:13:23,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:23,761 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:13:23,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:23,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:13:23,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:23,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:13:23,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:23,908 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 22:13:23,909 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 22:13:23,909 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 22:13:23,940 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 94 states and 98 transitions. Complement of second has 5 states. [2023-11-06 22:13:23,941 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 22:13:23,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 22:13:23,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2023-11-06 22:13:23,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 32 letters. Loop has 9 letters. [2023-11-06 22:13:23,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:13:23,944 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:13:23,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:23,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:13:23,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:24,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:13:24,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:24,071 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 22:13:24,073 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:13:24,073 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 22:13:24,111 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 94 states and 98 transitions. Complement of second has 7 states. [2023-11-06 22:13:24,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:13:24,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 22:13:24,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2023-11-06 22:13:24,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 32 letters. Loop has 9 letters. [2023-11-06 22:13:24,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:13:24,114 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:13:24,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:13:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:24,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:13:24,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:13:24,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:13:24,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:13:24,248 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 22:13:24,249 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:13:24,249 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 22:13:24,283 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 63 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 110 states and 115 transitions. Complement of second has 4 states. [2023-11-06 22:13:24,284 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 22:13:24,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 22:13:24,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2023-11-06 22:13:24,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 42 transitions. Stem has 32 letters. Loop has 9 letters. [2023-11-06 22:13:24,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:13:24,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 42 transitions. Stem has 41 letters. Loop has 9 letters. [2023-11-06 22:13:24,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:13:24,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 42 transitions. Stem has 32 letters. Loop has 18 letters. [2023-11-06 22:13:24,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:13:24,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 115 transitions. [2023-11-06 22:13:24,299 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:13:24,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 0 states and 0 transitions. [2023-11-06 22:13:24,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:13:24,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:13:24,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:13:24,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:13:24,300 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:13:24,300 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:13:24,300 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:13:24,300 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 22:13:24,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:13:24,300 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:13:24,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:13:24,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:13:24 BoogieIcfgContainer [2023-11-06 22:13:24,314 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:13:24,315 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:13:24,315 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:13:24,315 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:13:24,315 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:13:18" (3/4) ... [2023-11-06 22:13:24,317 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:13:24,318 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:13:24,322 INFO L158 Benchmark]: Toolchain (without parser) took 6383.84ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 130.4MB in the beginning and 101.1MB in the end (delta: 29.2MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2023-11-06 22:13:24,322 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 70.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:13:24,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.71ms. Allocated memory is still 159.4MB. Free memory was 129.6MB in the beginning and 119.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:13:24,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.58ms. Allocated memory is still 159.4MB. Free memory was 119.9MB in the beginning and 118.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:13:24,325 INFO L158 Benchmark]: Boogie Preprocessor took 25.30ms. Allocated memory is still 159.4MB. Free memory was 118.3MB in the beginning and 117.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:13:24,326 INFO L158 Benchmark]: RCFGBuilder took 460.49ms. Allocated memory is still 159.4MB. Free memory was 117.0MB in the beginning and 105.2MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:13:24,327 INFO L158 Benchmark]: BuchiAutomizer took 5628.98ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 104.5MB in the beginning and 102.2MB in the end (delta: 2.3MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2023-11-06 22:13:24,327 INFO L158 Benchmark]: Witness Printer took 3.68ms. Allocated memory is still 192.9MB. Free memory was 102.2MB in the beginning and 101.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:13:24,329 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 70.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.71ms. Allocated memory is still 159.4MB. Free memory was 129.6MB in the beginning and 119.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.58ms. Allocated memory is still 159.4MB. Free memory was 119.9MB in the beginning and 118.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.30ms. Allocated memory is still 159.4MB. Free memory was 118.3MB in the beginning and 117.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.49ms. Allocated memory is still 159.4MB. Free memory was 117.0MB in the beginning and 105.2MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5628.98ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 104.5MB in the beginning and 102.2MB in the end (delta: 2.3MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 3.68ms. Allocated memory is still 192.9MB. Free memory was 102.2MB in the beginning and 101.1MB in the end (delta: 1.0MB). 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((-2 * i) + 7) and consists of 6 locations. One deterministic module has affine ranking function ((-1 * j) + 3) and consists of 3 locations. One nondeterministic module has affine ranking function ((-1 * j) + 3) 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 5.5s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.6s. Construction of modules took 0.1s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 27 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/11 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 166 mSDsluCounter, 292 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 135 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 189 IncrementalHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 157 mSDtfsCounter, 189 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf95 smp100 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 94ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s 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 22:13:24,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:24,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:13:24,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd25f074-2933-44ee-8b6a-89b29bf7934f/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