./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/hh2012-ex2b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/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_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/hh2012-ex2b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/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_e2e564fd-ea99-408b-8ce8-7a545b12222a/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 33d07b945bedf27c99ae2e0c2f8250a85a01f89cb7fb82b15572e4678e4d0d97 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:17,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:17,397 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:55:17,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:17,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:17,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:17,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:17,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:17,441 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:17,441 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:17,442 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:17,443 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:55:17,443 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:55:17,444 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:55:17,445 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:55:17,446 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:55:17,446 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:55:17,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:17,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:55:17,448 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:17,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:17,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:17,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:17,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:55:17,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:55:17,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:55:17,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:55:17,454 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:17,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:17,455 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:55:17,455 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:17,456 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:17,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:17,458 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:17,458 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:17,459 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:55:17,460 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_e2e564fd-ea99-408b-8ce8-7a545b12222a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33d07b945bedf27c99ae2e0c2f8250a85a01f89cb7fb82b15572e4678e4d0d97 [2023-11-19 07:55:17,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:17,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:17,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:17,811 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:17,812 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:17,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/loop-lit/hh2012-ex2b.i [2023-11-19 07:55:20,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:21,248 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:21,249 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/sv-benchmarks/c/loop-lit/hh2012-ex2b.i [2023-11-19 07:55:21,256 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu/data/481c05c86/20df0650cc724114ba172d2dc45846a1/FLAGff549a90f [2023-11-19 07:55:21,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu/data/481c05c86/20df0650cc724114ba172d2dc45846a1 [2023-11-19 07:55:21,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:21,295 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:21,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:21,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:21,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:21,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e475744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21, skipping insertion in model container [2023-11-19 07:55:21,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,332 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:21,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:21,540 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:21,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:21,570 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:21,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21 WrapperNode [2023-11-19 07:55:21,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:21,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:21,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:21,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:21,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,607 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 42 [2023-11-19 07:55:21,608 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:21,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:21,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:21,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:21,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:21,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:21,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:21,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:21,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21" (1/1) ... [2023-11-19 07:55:21,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:55:21,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:21,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:21,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:55:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:21,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:21,783 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:21,801 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:21,944 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:21,952 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:21,952 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:55:21,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:21 BoogieIcfgContainer [2023-11-19 07:55:21,955 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:21,956 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:55:21,956 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:55:21,960 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:55:21,961 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:55:21,961 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:55:21" (1/3) ... [2023-11-19 07:55:21,962 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7648269c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:55:21, skipping insertion in model container [2023-11-19 07:55:21,962 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:55:21,962 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:21" (2/3) ... [2023-11-19 07:55:21,963 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7648269c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:55:21, skipping insertion in model container [2023-11-19 07:55:21,963 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:55:21,963 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:21" (3/3) ... [2023-11-19 07:55:21,964 INFO L332 chiAutomizerObserver]: Analyzing ICFG hh2012-ex2b.i [2023-11-19 07:55:22,014 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:55:22,014 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:55:22,014 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:55:22,014 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:55:22,015 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:55:22,015 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:55:22,015 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:55:22,015 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:55:22,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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 07:55:22,035 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2023-11-19 07:55:22,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:55:22,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:55:22,041 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:55:22,041 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:55:22,041 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:55:22,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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 07:55:22,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2023-11-19 07:55:22,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:55:22,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:55:22,044 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:55:22,044 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:55:22,051 INFO L748 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~post2#1, main_~n~0#1;main_~n~0#1 := 0; 5#L19-1true [2023-11-19 07:55:22,051 INFO L750 eck$LassoCheckResult]: Loop: 5#L19-1true assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~n~0#1 <= 60 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 12#L13true assume !(0 == __VERIFIER_assert_~cond#1); 6#L13-3true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~nondet1#1; 15#L19true assume !(0 != main_#t~nondet1#1 % 256);havoc main_#t~nondet1#1; 5#L19-1true [2023-11-19 07:55:22,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:22,057 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:55:22,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:22,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717804554] [2023-11-19 07:55:22,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:22,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:22,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:22,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:22,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:22,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1276138, now seen corresponding path program 1 times [2023-11-19 07:55:22,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:22,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871205256] [2023-11-19 07:55:22,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:22,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:22,289 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:22,302 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:22,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:22,304 INFO L85 PathProgramCache]: Analyzing trace with hash 889703340, now seen corresponding path program 1 times [2023-11-19 07:55:22,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:22,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427742471] [2023-11-19 07:55:22,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:22,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:22,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:22,343 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:22,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:22,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:55:22 BoogieIcfgContainer [2023-11-19 07:55:22,603 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:55:22,604 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:55:22,604 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:55:22,605 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:55:22,605 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:21" (3/4) ... [2023-11-19 07:55:22,607 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 07:55:22,645 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:55:22,645 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:55:22,647 INFO L158 Benchmark]: Toolchain (without parser) took 1351.33ms. Allocated memory is still 176.2MB. Free memory was 147.5MB in the beginning and 114.9MB in the end (delta: 32.5MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2023-11-19 07:55:22,648 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 125.8MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:22,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.25ms. Allocated memory is still 176.2MB. Free memory was 147.5MB in the beginning and 136.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:55:22,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.39ms. Allocated memory is still 176.2MB. Free memory was 136.9MB in the beginning and 135.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:22,651 INFO L158 Benchmark]: Boogie Preprocessor took 21.70ms. Allocated memory is still 176.2MB. Free memory was 135.7MB in the beginning and 134.9MB in the end (delta: 828.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:22,651 INFO L158 Benchmark]: RCFGBuilder took 324.25ms. Allocated memory is still 176.2MB. Free memory was 134.9MB in the beginning and 142.2MB in the end (delta: -7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:55:22,652 INFO L158 Benchmark]: BuchiAutomizer took 647.33ms. Allocated memory is still 176.2MB. Free memory was 142.2MB in the beginning and 117.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 07:55:22,653 INFO L158 Benchmark]: Witness Printer took 41.24ms. Allocated memory is still 176.2MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:22,658 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 125.8MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.25ms. Allocated memory is still 176.2MB. Free memory was 147.5MB in the beginning and 136.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.39ms. Allocated memory is still 176.2MB. Free memory was 136.9MB in the beginning and 135.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.70ms. Allocated memory is still 176.2MB. Free memory was 135.7MB in the beginning and 134.9MB in the end (delta: 828.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 324.25ms. Allocated memory is still 176.2MB. Free memory was 134.9MB in the beginning and 142.2MB in the end (delta: -7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 647.33ms. Allocated memory is still 176.2MB. Free memory was 142.2MB in the beginning and 117.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 41.24ms. Allocated memory is still 176.2MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.1MB). 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 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: [L16] int n = 0; VAL [n=0] Loop: [L17] COND TRUE 1 [L18] CALL __VERIFIER_assert(n <= 60) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(n <= 60) [L19] COND FALSE !(__VERIFIER_nondet_bool()) 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: [L16] int n = 0; VAL [n=0] Loop: [L17] COND TRUE 1 [L18] CALL __VERIFIER_assert(n <= 60) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(n <= 60) [L19] COND FALSE !(__VERIFIER_nondet_bool()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:55:22,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2e564fd-ea99-408b-8ce8-7a545b12222a/bin/uautomizer-verify-uCwYo4JHxu/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)