./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6835149c4278fd8af0ce273d8cc15b325ec6738caba22fa2c7b2c4b417fc898f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:12:16,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:12:16,495 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 23:12:16,500 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:12:16,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:12:16,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:12:16,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:12:16,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:12:16,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:12:16,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:12:16,565 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:12:16,566 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 23:12:16,567 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 23:12:16,568 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 23:12:16,569 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 23:12:16,569 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 23:12:16,570 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 23:12:16,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:12:16,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 23:12:16,572 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:12:16,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:12:16,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:12:16,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:12:16,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 23:12:16,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 23:12:16,576 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 23:12:16,577 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:12:16,577 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:12:16,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:12:16,578 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 23:12:16,579 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:12:16,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:12:16,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:12:16,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:12:16,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:12:16,604 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 23:12:16,604 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_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6835149c4278fd8af0ce273d8cc15b325ec6738caba22fa2c7b2c4b417fc898f [2023-11-06 23:12:17,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:12:17,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:12:17,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:12:17,068 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:12:17,069 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:12:17,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/loops/while_infinite_loop_1.c [2023-11-06 23:12:20,746 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:12:21,029 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:12:21,030 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/sv-benchmarks/c/loops/while_infinite_loop_1.c [2023-11-06 23:12:21,040 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/data/edb8d718f/b367ed1b09f947a7819b3b8f9cbf16ee/FLAG7c9059490 [2023-11-06 23:12:21,059 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/data/edb8d718f/b367ed1b09f947a7819b3b8f9cbf16ee [2023-11-06 23:12:21,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:12:21,065 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:12:21,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:12:21,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:12:21,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:12:21,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1339ca68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21, skipping insertion in model container [2023-11-06 23:12:21,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,108 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:12:21,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:12:21,313 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:12:21,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:12:21,348 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:12:21,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21 WrapperNode [2023-11-06 23:12:21,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:12:21,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:12:21,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:12:21,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:12:21,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,368 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,390 INFO L138 Inliner]: procedures = 12, calls = 10, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 30 [2023-11-06 23:12:21,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:12:21,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:12:21,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:12:21,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:12:21,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:12:21,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:12:21,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:12:21,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:12:21,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21" (1/1) ... [2023-11-06 23:12:21,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:12:21,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:12:21,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:12:21,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 23:12:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:12:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:12:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:12:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:12:21,606 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:12:21,609 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:12:21,746 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:12:21,754 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:12:21,755 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:12:21,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:12:21 BoogieIcfgContainer [2023-11-06 23:12:21,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:12:21,769 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 23:12:21,769 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 23:12:21,776 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 23:12:21,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:12:21,778 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 11:12:21" (1/3) ... [2023-11-06 23:12:21,779 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@604e89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 11:12:21, skipping insertion in model container [2023-11-06 23:12:21,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:12:21,780 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:12:21" (2/3) ... [2023-11-06 23:12:21,783 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@604e89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 11:12:21, skipping insertion in model container [2023-11-06 23:12:21,784 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:12:21,784 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:12:21" (3/3) ... [2023-11-06 23:12:21,790 INFO L332 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_1.c [2023-11-06 23:12:21,875 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 23:12:21,875 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 23:12:21,875 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 23:12:21,876 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 23:12:21,876 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 23:12:21,876 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 23:12:21,876 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 23:12:21,877 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 23:12:21,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:21,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 23:12:21,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:12:21,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:12:21,910 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:12:21,910 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 23:12:21,910 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 23:12:21,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:21,913 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-06 23:12:21,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:12:21,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:12:21,914 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:12:21,914 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 23:12:21,924 INFO L748 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1;main_~x~0#1 := 0; 9#L15-2true [2023-11-06 23:12:21,925 INFO L750 eck$LassoCheckResult]: Loop: 9#L15-2true assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11#L6true assume !(0 == __VERIFIER_assert_~cond#1); 3#L6-2true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 9#L15-2true [2023-11-06 23:12:21,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:21,932 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 23:12:21,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:21,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214296245] [2023-11-06 23:12:21,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:21,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:12:22,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:12:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:12:22,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:12:22,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:22,147 INFO L85 PathProgramCache]: Analyzing trace with hash 41005, now seen corresponding path program 1 times [2023-11-06 23:12:22,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:22,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39202290] [2023-11-06 23:12:22,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:22,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:12:22,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:12:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:12:22,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:12:22,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:22,191 INFO L85 PathProgramCache]: Analyzing trace with hash 28699947, now seen corresponding path program 1 times [2023-11-06 23:12:22,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:22,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49183860] [2023-11-06 23:12:22,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:22,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:12:22,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:12:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:12:22,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:12:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:12:22,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:12:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:12:22,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 11:12:22 BoogieIcfgContainer [2023-11-06 23:12:22,667 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 23:12:22,668 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:12:22,668 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:12:22,668 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:12:22,670 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:12:21" (3/4) ... [2023-11-06 23:12:22,672 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 23:12:22,732 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:12:22,732 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:12:22,740 INFO L158 Benchmark]: Toolchain (without parser) took 1669.13ms. Allocated memory is still 144.7MB. Free memory was 99.0MB in the beginning and 49.8MB in the end (delta: 49.1MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-06 23:12:22,741 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 144.7MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:12:22,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.17ms. Allocated memory is still 144.7MB. Free memory was 98.6MB in the beginning and 88.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 23:12:22,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.29ms. Allocated memory is still 144.7MB. Free memory was 88.9MB in the beginning and 87.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:12:22,743 INFO L158 Benchmark]: Boogie Preprocessor took 26.38ms. Allocated memory is still 144.7MB. Free memory was 87.6MB in the beginning and 86.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:12:22,744 INFO L158 Benchmark]: RCFGBuilder took 348.35ms. Allocated memory is still 144.7MB. Free memory was 86.4MB in the beginning and 77.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 23:12:22,747 INFO L158 Benchmark]: BuchiAutomizer took 898.69ms. Allocated memory is still 144.7MB. Free memory was 77.6MB in the beginning and 51.6MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-06 23:12:22,748 INFO L158 Benchmark]: Witness Printer took 64.78ms. Allocated memory is still 144.7MB. Free memory was 51.6MB in the beginning and 49.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:12:22,751 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 144.7MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.17ms. Allocated memory is still 144.7MB. Free memory was 98.6MB in the beginning and 88.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.29ms. Allocated memory is still 144.7MB. Free memory was 88.9MB in the beginning and 87.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.38ms. Allocated memory is still 144.7MB. Free memory was 87.6MB in the beginning and 86.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 348.35ms. Allocated memory is still 144.7MB. Free memory was 86.4MB in the beginning and 77.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 898.69ms. Allocated memory is still 144.7MB. Free memory was 77.6MB in the beginning and 51.6MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 64.78ms. Allocated memory is still 144.7MB. Free memory was 51.6MB in the beginning and 49.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 0.7s 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: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L13] int x=0; VAL [x=0] Loop: [L15] COND TRUE 1 [L17] CALL __VERIFIER_assert(x==0) [L6] COND FALSE !(!(cond)) [L17] RET __VERIFIER_assert(x==0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x=0; VAL [x=0] Loop: [L15] COND TRUE 1 [L17] CALL __VERIFIER_assert(x==0) [L6] COND FALSE !(!(cond)) [L17] RET __VERIFIER_assert(x==0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-06 23:12:22,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45a339ec-1366-44ad-a9d5-41f52a1c16f2/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)