./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30e01a73 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_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7b840784ed09a8ba534cc1991a3b26e3517ca5684a3a750b52e1a997eff0418 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:30:07,926 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:30:08,006 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-23 22:30:08,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:30:08,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:30:08,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:30:08,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:30:08,042 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:30:08,043 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:30:08,044 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:30:08,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:30:08,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:30:08,046 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:30:08,047 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-23 22:30:08,047 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-23 22:30:08,048 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-23 22:30:08,048 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-23 22:30:08,049 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-23 22:30:08,050 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-23 22:30:08,050 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:30:08,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-23 22:30:08,052 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:30:08,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:30:08,053 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:30:08,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:30:08,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-23 22:30:08,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-23 22:30:08,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-23 22:30:08,056 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:30:08,056 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:30:08,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:30:08,057 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-23 22:30:08,058 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:30:08,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:30:08,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:30:08,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:30:08,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:30:08,061 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-23 22:30:08,061 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_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7b840784ed09a8ba534cc1991a3b26e3517ca5684a3a750b52e1a997eff0418 [2023-11-23 22:30:08,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:30:08,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:30:08,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:30:08,455 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:30:08,456 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:30:08,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/loop-lit/gsv2008.i [2023-11-23 22:30:11,722 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:30:11,927 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:30:11,928 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/sv-benchmarks/c/loop-lit/gsv2008.i [2023-11-23 22:30:11,937 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/data/68d835d84/3f65ed88e2154227996bd47a2fe89480/FLAGa714efcaf [2023-11-23 22:30:11,953 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/data/68d835d84/3f65ed88e2154227996bd47a2fe89480 [2023-11-23 22:30:11,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:30:11,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:30:11,963 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:30:11,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:30:11,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:30:11,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:30:11" (1/1) ... [2023-11-23 22:30:11,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3feeb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:11, skipping insertion in model container [2023-11-23 22:30:11,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:30:11" (1/1) ... [2023-11-23 22:30:11,994 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:30:12,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:30:12,169 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:30:12,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:30:12,200 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:30:12,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12 WrapperNode [2023-11-23 22:30:12,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:30:12,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:30:12,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:30:12,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:30:12,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (1/1) ... [2023-11-23 22:30:12,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (1/1) ... [2023-11-23 22:30:12,238 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 37 [2023-11-23 22:30:12,239 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:30:12,240 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:30:12,240 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:30:12,240 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:30:12,251 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (1/1) ... [2023-11-23 22:30:12,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (1/1) ... [2023-11-23 22:30:12,252 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (1/1) ... [2023-11-23 22:30:12,262 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:30:12,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (1/1) ... [2023-11-23 22:30:12,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (1/1) ... [2023-11-23 22:30:12,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (1/1) ... [2023-11-23 22:30:12,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (1/1) ... [2023-11-23 22:30:12,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (1/1) ... [2023-11-23 22:30:12,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (1/1) ... [2023-11-23 22:30:12,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:30:12,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:30:12,274 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:30:12,274 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:30:12,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (1/1) ... [2023-11-23 22:30:12,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:30:12,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:12,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:30:12,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-23 22:30:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:30:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:30:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:30:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:30:12,423 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:30:12,425 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:30:12,555 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:30:12,580 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:30:12,580 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:30:12,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:30:12 BoogieIcfgContainer [2023-11-23 22:30:12,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:30:12,583 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-23 22:30:12,583 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-23 22:30:12,587 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-23 22:30:12,588 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:30:12,589 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 10:30:11" (1/3) ... [2023-11-23 22:30:12,590 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10c9e558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:30:12, skipping insertion in model container [2023-11-23 22:30:12,590 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:30:12,590 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:12" (2/3) ... [2023-11-23 22:30:12,590 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10c9e558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:30:12, skipping insertion in model container [2023-11-23 22:30:12,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:30:12,591 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:30:12" (3/3) ... [2023-11-23 22:30:12,592 INFO L332 chiAutomizerObserver]: Analyzing ICFG gsv2008.i [2023-11-23 22:30:12,660 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-23 22:30:12,660 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-23 22:30:12,661 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-23 22:30:12,661 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-23 22:30:12,661 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-23 22:30:12,661 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-23 22:30:12,661 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-23 22:30:12,662 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-23 22:30:12,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:12,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-23 22:30:12,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:30:12,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:30:12,690 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-23 22:30:12,690 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-23 22:30:12,690 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-23 22:30:12,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:12,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-23 22:30:12,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:30:12,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:30:12,693 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-23 22:30:12,693 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-23 22:30:12,702 INFO L748 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := -50;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 9#L28true assume !!(-1000 < main_~y~0#1 && main_~y~0#1 < 1000000); 12#L29-2true [2023-11-23 22:30:12,702 INFO L750 eck$LassoCheckResult]: Loop: 12#L29-2true assume !!(main_~x~0#1 < 0);main_~x~0#1 := main_~x~0#1 + main_~y~0#1;main_#t~post2#1 := main_~y~0#1;main_~y~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 12#L29-2true [2023-11-23 22:30:12,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:12,708 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2023-11-23 22:30:12,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:12,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903300228] [2023-11-23 22:30:12,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:12,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:30:12,840 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:30:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:30:12,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:30:12,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:12,896 INFO L85 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2023-11-23 22:30:12,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:12,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035428984] [2023-11-23 22:30:12,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:12,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:30:12,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:30:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:30:12,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:30:12,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:12,932 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2023-11-23 22:30:12,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:12,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203423394] [2023-11-23 22:30:12,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:12,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:30:12,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:30:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:30:12,986 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:30:13,098 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:30:13,100 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:30:13,100 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:30:13,100 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:30:13,101 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:30:13,101 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:30:13,101 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:30:13,101 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:30:13,102 INFO L133 ssoRankerPreferences]: Filename of dumped script: gsv2008.i_Iteration1_Loop [2023-11-23 22:30:13,102 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:30:13,102 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:30:13,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:30:13,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:30:13,260 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:30:13,261 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:30:13,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:30:13,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:13,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:30:13,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:30:13,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:30:13,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-23 22:30:13,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:13,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:30:13,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:13,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:30:13,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:30:13,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:30:13,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-23 22:30:13,440 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:30:13,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-23 22:30:13,448 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:30:13,449 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:30:13,449 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:30:13,449 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:30:13,449 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:30:13,449 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:30:13,450 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:30:13,450 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:30:13,450 INFO L133 ssoRankerPreferences]: Filename of dumped script: gsv2008.i_Iteration1_Loop [2023-11-23 22:30:13,450 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:30:13,450 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:30:13,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:30:13,463 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:30:13,496 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:30:13,501 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:30:13,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:30:13,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:13,505 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:30:13,512 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 [2023-11-23 22:30:13,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-23 22:30:13,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:30:13,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:30:13,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:30:13,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:30:13,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:30:13,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:30:13,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:30:13,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:30:13,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:13,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:30:13,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:13,561 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:30:13,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-23 22:30:13,572 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 [2023-11-23 22:30:13,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:30:13,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:30:13,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:30:13,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:30:13,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:30:13,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:30:13,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:30:13,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:30:13,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-23 22:30:13,618 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-23 22:30:13,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:30:13,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:13,621 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:30:13,632 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 [2023-11-23 22:30:13,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-23 22:30:13,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:30:13,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:30:13,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:30:13,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:30:13,649 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-23 22:30:13,655 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-23 22:30:13,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:30:13,668 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:30:13,677 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:30:13,677 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:30:13,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:30:13,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:13,712 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:30:13,720 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:30:13,721 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:30:13,721 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:30:13,721 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0#1 + 1 f1 = -2*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-23 22:30:13,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-23 22:30:13,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:13,748 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:30:13,761 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -2 * ~y~0 + 1 > 0 then 1 else 0) could not be translated [2023-11-23 22:30:13,765 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IfThenElseExpression (if -2 * ~y~0 + 1 > 0 then -2 * ~y~0 + 1 else -2 * ~x~0) could not be translated [2023-11-23 22:30:13,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:13,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:30:13,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:13,853 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:30:13,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:13,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:13,889 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-23 22:30:13,892 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:13,945 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 6 states. [2023-11-23 22:30:13,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-23 22:30:13,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:13,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2023-11-23 22:30:13,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-23 22:30:13,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:30:13,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-23 22:30:13,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:30:13,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-23 22:30:13,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:30:13,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2023-11-23 22:30:13,962 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 22:30:13,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2023-11-23 22:30:13,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-23 22:30:13,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-23 22:30:13,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-23 22:30:13,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:30:13,968 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:30:13,968 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:30:13,968 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:30:13,968 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-23 22:30:13,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:30:13,969 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 22:30:13,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-23 22:30:13,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 10:30:13 BoogieIcfgContainer [2023-11-23 22:30:13,977 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-23 22:30:13,978 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:30:13,978 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:30:13,978 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:30:13,979 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:30:12" (3/4) ... [2023-11-23 22:30:13,981 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 22:30:13,983 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:30:13,984 INFO L158 Benchmark]: Toolchain (without parser) took 2021.53ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 115.7MB in the beginning and 156.2MB in the end (delta: -40.5MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-11-23 22:30:13,985 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 159.4MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:30:13,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.84ms. Allocated memory is still 159.4MB. Free memory was 115.3MB in the beginning and 105.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:30:13,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.21ms. Allocated memory is still 159.4MB. Free memory was 104.8MB in the beginning and 103.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:30:13,995 INFO L158 Benchmark]: Boogie Preprocessor took 33.60ms. Allocated memory is still 159.4MB. Free memory was 103.6MB in the beginning and 102.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:30:13,995 INFO L158 Benchmark]: RCFGBuilder took 308.11ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 93.1MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:30:13,996 INFO L158 Benchmark]: BuchiAutomizer took 1394.23ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 92.7MB in the beginning and 156.2MB in the end (delta: -63.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:30:13,996 INFO L158 Benchmark]: Witness Printer took 4.69ms. Allocated memory is still 209.7MB. Free memory is still 156.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:30:14,000 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 159.4MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.84ms. Allocated memory is still 159.4MB. Free memory was 115.3MB in the beginning and 105.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.21ms. Allocated memory is still 159.4MB. Free memory was 104.8MB in the beginning and 103.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.60ms. Allocated memory is still 159.4MB. Free memory was 103.6MB in the beginning and 102.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 308.11ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 93.1MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1394.23ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 92.7MB in the beginning and 156.2MB in the end (delta: -63.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.69ms. Allocated memory is still 209.7MB. Free memory is still 156.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -2 * ~y~0 + 1 > 0 then 1 else 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IfThenElseExpression (if -2 * ~y~0 + 1 > 0 then -2 * ~y~0 + 1 else -2 * ~x~0) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function null, null and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf93 smp100 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 102ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-23 22:30:14,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:14,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a19cc9cd-6995-4896-bc79-3417c0a491fd/bin/uautomizer-verify-zZY32mL2XJ/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