./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu --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 d092867a9e1055748d4525b336ea1f27e78b14112d4f5a890867dcf4a9fe862b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:45,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:45,545 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:55:45,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:45,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:45,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:45,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:45,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:45,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:45,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:45,579 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:45,580 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:55:45,581 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:55:45,581 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:55:45,582 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:55:45,582 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:55:45,583 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:55:45,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:45,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:55:45,584 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:45,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:45,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:45,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:45,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:55:45,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:55:45,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:55:45,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:55:45,590 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:45,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:45,591 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:55:45,593 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:45,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:45,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:45,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:45,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:45,595 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:55:45,595 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_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d092867a9e1055748d4525b336ea1f27e78b14112d4f5a890867dcf4a9fe862b [2023-11-19 07:55:45,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:45,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:45,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:45,929 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:45,930 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:45,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i [2023-11-19 07:55:49,192 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:49,442 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:49,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/sv-benchmarks/c/loop-crafted/simple_array_index_value_1-2.i [2023-11-19 07:55:49,451 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/data/43488598d/01fb82f5ffcc420dae230fdaa67f0b5c/FLAGf3c45e978 [2023-11-19 07:55:49,474 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/data/43488598d/01fb82f5ffcc420dae230fdaa67f0b5c [2023-11-19 07:55:49,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:49,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:49,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:49,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:49,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:49,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,492 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42197e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49, skipping insertion in model container [2023-11-19 07:55:49,492 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,516 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:49,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:49,716 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:49,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:49,748 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:49,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49 WrapperNode [2023-11-19 07:55:49,748 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:49,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:49,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:49,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:49,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,783 INFO L138 Inliner]: procedures = 17, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 40 [2023-11-19 07:55:49,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:49,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:49,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:49,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:49,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,809 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:49,810 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:49,810 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:49,811 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:49,811 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:55:49,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:49,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:49,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:55:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:55:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:55:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:49,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:49,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:55:49,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:55:49,948 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:49,950 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:50,062 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:50,075 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:50,078 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:55:50,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:50 BoogieIcfgContainer [2023-11-19 07:55:50,081 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:50,082 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:55:50,082 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:55:50,085 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:55:50,086 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:55:50,101 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:55:49" (1/3) ... [2023-11-19 07:55:50,103 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ecbd8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:55:50, skipping insertion in model container [2023-11-19 07:55:50,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:55:50,103 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49" (2/3) ... [2023-11-19 07:55:50,103 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ecbd8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:55:50, skipping insertion in model container [2023-11-19 07:55:50,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:55:50,104 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:50" (3/3) ... [2023-11-19 07:55:50,109 INFO L332 chiAutomizerObserver]: Analyzing ICFG simple_array_index_value_1-2.i [2023-11-19 07:55:50,220 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:55:50,220 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:55:50,220 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:55:50,221 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:55:50,221 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:55:50,221 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:55:50,221 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:55:50,221 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:55:50,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:50,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:55:50,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:55:50,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:55:50,248 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:55:50,249 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:55:50,249 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:55:50,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:55:50,251 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-19 07:55:50,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:55:50,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:55:50,251 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:55:50,251 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 07:55:50,258 INFO L748 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~mem2#1, main_#t~short3#1, main_~#array~0#1.base, main_~#array~0#1.offset, main_~index~0#1, main_~tmp~0#1;call main_~#array~0#1.base, main_~#array~0#1.offset := #Ultimate.allocOnStack(40000);main_~index~0#1 := 0;main_~tmp~0#1 := 0; 12#L39-2true [2023-11-19 07:55:50,259 INFO L750 eck$LassoCheckResult]: Loop: 12#L39-2true assume !false;havoc main_#t~nondet1#1;main_~index~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 9#L41true assume !(main_~index~0#1 % 4294967296 >= 10000);call write~int(main_~index~0#1, main_~#array~0#1.base, main_~#array~0#1.offset + 4 * (if main_~index~0#1 % 4294967296 % 4294967296 <= 2147483647 then main_~index~0#1 % 4294967296 % 4294967296 else main_~index~0#1 % 4294967296 % 4294967296 - 4294967296), 4);main_~tmp~0#1 := main_~index~0#1; 12#L39-2true [2023-11-19 07:55:50,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:50,264 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:55:50,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:50,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718762998] [2023-11-19 07:55:50,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:50,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:50,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:50,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:50,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:50,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-11-19 07:55:50,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:50,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270342352] [2023-11-19 07:55:50,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:50,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:50,494 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:50,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:50,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:50,519 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-19 07:55:50,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:50,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87964573] [2023-11-19 07:55:50,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:50,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:50,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:50,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:51,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:51,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:55:51 BoogieIcfgContainer [2023-11-19 07:55:51,053 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:55:51,054 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:55:51,055 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:55:51,055 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:55:51,055 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:50" (3/4) ... [2023-11-19 07:55:51,057 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 07:55:51,114 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:55:51,115 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:55:51,116 INFO L158 Benchmark]: Toolchain (without parser) took 1634.23ms. Allocated memory is still 138.4MB. Free memory was 95.9MB in the beginning and 70.8MB in the end (delta: 25.1MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2023-11-19 07:55:51,117 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 102.8MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:51,118 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.72ms. Allocated memory is still 138.4MB. Free memory was 95.9MB in the beginning and 85.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:55:51,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.75ms. Allocated memory is still 138.4MB. Free memory was 85.4MB in the beginning and 84.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:51,122 INFO L158 Benchmark]: Boogie Preprocessor took 25.33ms. Allocated memory is still 138.4MB. Free memory was 83.7MB in the beginning and 82.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:51,126 INFO L158 Benchmark]: RCFGBuilder took 270.90ms. Allocated memory is still 138.4MB. Free memory was 82.7MB in the beginning and 72.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:55:51,127 INFO L158 Benchmark]: BuchiAutomizer took 971.76ms. Allocated memory is still 138.4MB. Free memory was 72.9MB in the beginning and 72.3MB in the end (delta: 551.3kB). Peak memory consumption was 257.2kB. Max. memory is 16.1GB. [2023-11-19 07:55:51,128 INFO L158 Benchmark]: Witness Printer took 60.50ms. Allocated memory is still 138.4MB. Free memory was 72.3MB in the beginning and 70.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:51,131 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 102.8MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.72ms. Allocated memory is still 138.4MB. Free memory was 95.9MB in the beginning and 85.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.75ms. Allocated memory is still 138.4MB. Free memory was 85.4MB in the beginning and 84.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.33ms. Allocated memory is still 138.4MB. Free memory was 83.7MB in the beginning and 82.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 270.90ms. Allocated memory is still 138.4MB. Free memory was 82.7MB in the beginning and 72.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 971.76ms. Allocated memory is still 138.4MB. Free memory was 72.9MB in the beginning and 72.3MB in the end (delta: 551.3kB). Peak memory consumption was 257.2kB. Max. memory is 16.1GB. * Witness Printer took 60.50ms. Allocated memory is still 138.4MB. Free memory was 72.3MB in the beginning and 70.8MB in the end (delta: 1.5MB). 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 0.8s 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: 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: 39]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L35] unsigned int array[10000]; [L36] unsigned int index = 0; [L37] unsigned int tmp = 0; VAL [array={26729:0}, index=0, tmp=0] Loop: [L39] COND TRUE 1 [L40] index = __VERIFIER_nondet_uint() [L41] COND FALSE !(index >= 10000) [L44] array[index] = index [L45] tmp = index End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 39]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L35] unsigned int array[10000]; [L36] unsigned int index = 0; [L37] unsigned int tmp = 0; VAL [array={26729:0}, index=0, tmp=0] Loop: [L39] COND TRUE 1 [L40] index = __VERIFIER_nondet_uint() [L41] COND FALSE !(index >= 10000) [L44] array[index] = index [L45] tmp = index End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:55:51,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ceab52e-d901-4eb4-ac44-057fba51fbc3/bin/uautomizer-verify-uCwYo4JHxu/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)