./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Madrid.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/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_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Madrid.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/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 64bit --witnessprinter.graph.data.programhash a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:37:30,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:37:30,939 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-23 21:37:30,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:37:30,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:37:30,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:37:30,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:37:30,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:37:30,993 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:37:30,993 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:37:30,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:37:30,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:37:30,995 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:37:30,996 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-23 21:37:31,001 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-23 21:37:31,002 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-23 21:37:31,004 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-23 21:37:31,005 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-23 21:37:31,006 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-23 21:37:31,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:37:31,007 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-23 21:37:31,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:37:31,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:37:31,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-23 21:37:31,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-23 21:37:31,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-23 21:37:31,019 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:37:31,020 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:37:31,020 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-23 21:37:31,021 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:37:31,022 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:37:31,022 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:37:31,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:37:31,023 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:37:31,024 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-23 21:37:31,024 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_0958e14e-87f2-436a-a21b-01b75397fc8a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 [2023-11-23 21:37:31,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:37:31,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:37:31,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:37:31,367 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:37:31,368 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:37:31,369 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/termination-crafted/Madrid.c [2023-11-23 21:37:34,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:37:34,789 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:37:34,790 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/sv-benchmarks/c/termination-crafted/Madrid.c [2023-11-23 21:37:34,799 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/data/4e5139e95/a449413ab2314527bc60d0932ea6d4cd/FLAGd2fade8a8 [2023-11-23 21:37:34,815 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/data/4e5139e95/a449413ab2314527bc60d0932ea6d4cd [2023-11-23 21:37:34,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:37:34,827 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:37:34,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:37:34,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:37:34,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:37:34,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:37:34" (1/1) ... [2023-11-23 21:37:34,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7540cb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:34, skipping insertion in model container [2023-11-23 21:37:34,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:37:34" (1/1) ... [2023-11-23 21:37:34,858 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:37:35,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:37:35,022 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:37:35,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:37:35,044 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:37:35,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35 WrapperNode [2023-11-23 21:37:35,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:37:35,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:37:35,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:37:35,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:37:35,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (1/1) ... [2023-11-23 21:37:35,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (1/1) ... [2023-11-23 21:37:35,076 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2023-11-23 21:37:35,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:37:35,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:37:35,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:37:35,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:37:35,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (1/1) ... [2023-11-23 21:37:35,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (1/1) ... [2023-11-23 21:37:35,090 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (1/1) ... [2023-11-23 21:37:35,096 INFO L189 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-23 21:37:35,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (1/1) ... [2023-11-23 21:37:35,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (1/1) ... [2023-11-23 21:37:35,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (1/1) ... [2023-11-23 21:37:35,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (1/1) ... [2023-11-23 21:37:35,104 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (1/1) ... [2023-11-23 21:37:35,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (1/1) ... [2023-11-23 21:37:35,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:37:35,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:37:35,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:37:35,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:37:35,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (1/1) ... [2023-11-23 21:37:35,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:35,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:35,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:35,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-23 21:37:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:37:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:37:35,268 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:37:35,271 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:37:35,307 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:37:35,316 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:37:35,316 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:37:35,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:35 BoogieIcfgContainer [2023-11-23 21:37:35,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:37:35,319 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-23 21:37:35,319 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-23 21:37:35,322 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-23 21:37:35,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:37:35,323 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 09:37:34" (1/3) ... [2023-11-23 21:37:35,324 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16ef79dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:37:35, skipping insertion in model container [2023-11-23 21:37:35,324 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:37:35,324 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:35" (2/3) ... [2023-11-23 21:37:35,324 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16ef79dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:37:35, skipping insertion in model container [2023-11-23 21:37:35,325 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:37:35,325 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:35" (3/3) ... [2023-11-23 21:37:35,326 INFO L332 chiAutomizerObserver]: Analyzing ICFG Madrid.c [2023-11-23 21:37:35,382 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-23 21:37:35,382 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-23 21:37:35,382 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-23 21:37:35,383 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-23 21:37:35,383 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-23 21:37:35,383 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-23 21:37:35,383 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-23 21:37:35,384 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-23 21:37:35,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:35,406 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-23 21:37:35,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:37:35,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:37:35,411 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 21:37:35,411 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-23 21:37:35,411 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-23 21:37:35,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:35,413 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-23 21:37:35,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:37:35,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:37:35,413 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 21:37:35,413 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-23 21:37:35,421 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := 7; 6#L14-2true [2023-11-23 21:37:35,422 INFO L750 eck$LassoCheckResult]: Loop: 6#L14-2true assume !false;main_~x~0#1 := 2; 6#L14-2true [2023-11-23 21:37:35,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:35,427 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-23 21:37:35,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:35,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643298007] [2023-11-23 21:37:35,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:35,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:35,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:35,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:37:35,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:35,552 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-11-23 21:37:35,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:35,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114400641] [2023-11-23 21:37:35,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:35,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:35,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:35,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:37:35,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:35,566 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-23 21:37:35,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:35,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202132602] [2023-11-23 21:37:35,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:35,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:35,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:37:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:37:35,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:37:35,662 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:37:35,663 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:37:35,663 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:37:35,663 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:37:35,664 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 21:37:35,664 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:35,664 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:37:35,664 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:37:35,664 INFO L133 ssoRankerPreferences]: Filename of dumped script: Madrid.c_Iteration1_Lasso [2023-11-23 21:37:35,664 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:37:35,665 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:37:35,703 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 21:37:35,728 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 21:37:35,743 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 21:37:35,757 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 21:37:35,856 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:37:35,857 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 21:37:35,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:35,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:35,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:35,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:37:35,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:37:35,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-23 21:37:35,919 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:37:35,919 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:37:35,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-23 21:37:35,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:35,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:35,944 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:35,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:37:35,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:37:35,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-23 21:37:35,988 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:37:35,988 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:37:36,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:36,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:36,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:36,014 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:36,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:37:36,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:37:36,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-23 21:37:36,053 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:37:36,053 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-23 21:37:36,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:36,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:36,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:36,078 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:36,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-23 21:37:36,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 21:37:36,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:37:36,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:36,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:37:36,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:36,141 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:36,149 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 21:37:36,149 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 21:37:36,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-23 21:37:36,187 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 21:37:36,188 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=7} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=-8}, {ULTIMATE.start_main_~x~0#1=2}] Lambdas: [0, 0, 0] Nus: [0, 0] [2023-11-23 21:37:36,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:36,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-23 21:37:36,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-23 21:37:36,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-23 21:37:36,211 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-23 21:37:36,211 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-23 21:37:36,211 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-23 21:37:36,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 09:37:36 BoogieIcfgContainer [2023-11-23 21:37:36,219 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-23 21:37:36,220 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:37:36,220 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:37:36,220 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:37:36,221 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:35" (3/4) ... [2023-11-23 21:37:36,222 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-23 21:37:36,273 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 21:37:36,273 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:37:36,278 INFO L158 Benchmark]: Toolchain (without parser) took 1447.53ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 70.8MB in the beginning and 125.5MB in the end (delta: -54.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:37:36,279 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory was 106.3MB in the beginning and 106.2MB in the end (delta: 72.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:37:36,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.89ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 70.5MB in the beginning and 141.5MB in the end (delta: -71.0MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2023-11-23 21:37:36,281 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.16ms. Allocated memory is still 169.9MB. Free memory was 141.5MB in the beginning and 139.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:37:36,281 INFO L158 Benchmark]: Boogie Preprocessor took 28.54ms. Allocated memory is still 169.9MB. Free memory was 139.9MB in the beginning and 138.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:37:36,285 INFO L158 Benchmark]: RCFGBuilder took 210.48ms. Allocated memory is still 169.9MB. Free memory was 138.7MB in the beginning and 130.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 21:37:36,287 INFO L158 Benchmark]: BuchiAutomizer took 900.25ms. Allocated memory is still 169.9MB. Free memory was 130.3MB in the beginning and 126.8MB in the end (delta: 3.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:37:36,291 INFO L158 Benchmark]: Witness Printer took 53.59ms. Allocated memory is still 169.9MB. Free memory was 126.8MB in the beginning and 125.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:37:36,293 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory was 106.3MB in the beginning and 106.2MB in the end (delta: 72.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.89ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 70.5MB in the beginning and 141.5MB in the end (delta: -71.0MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.16ms. Allocated memory is still 169.9MB. Free memory was 141.5MB in the beginning and 139.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.54ms. Allocated memory is still 169.9MB. Free memory was 139.9MB in the beginning and 138.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 210.48ms. Allocated memory is still 169.9MB. Free memory was 138.7MB in the beginning and 130.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 900.25ms. Allocated memory is still 169.9MB. Free memory was 130.3MB in the beginning and 126.8MB in the end (delta: 3.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 53.59ms. Allocated memory is still 169.9MB. Free memory was 126.8MB in the beginning and 125.5MB in the end (delta: 1.3MB). 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: IdentifierExpression ~unnamed0~0~true could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital6 mio100 ax333 hnf100 lsp30 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq233 hnf100 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 14]: Nontermination argument in form of an infinite program execution. [2023-11-23 21:37:36,305 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-23 21:37:36,305 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-23 21:37:36,305 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-23 21:37:36,305 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-23 21:37:36,306 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-23 21:37:36,306 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-23 21:37:36,306 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-23 21:37:36,306 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-23 21:37:36,307 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-23 21:37:36,307 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-23 21:37:36,307 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-23 21:37:36,307 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated Nontermination argument in form of an infinite execution State at position 0 is {x=0, \result=0} State at position 1 is {x=7, \result=0} For i>1, the state at position i is {x=7 + sum_{k=0}^i 1*0^k + -8*0^k + 2*0^k, \result=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint 3GEVs Lambdas: [0, 0, 0] Mus: [0, 0] - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] x = 7 Loop: [L14] COND TRUE \read(true) [L15] x = 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-23 21:37:36,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0958e14e-87f2-436a-a21b-01b75397fc8a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)