./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-acceleration/phases_2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a0165632 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_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-acceleration/phases_2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX --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 c973e7f310a848892a18e3f534717b85b3f4d9e6c87fd06bd7bcf01c28300fa4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:57:25,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:57:25,438 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-08 18:57:25,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:57:25,448 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:57:25,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:57:25,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:57:25,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:57:25,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:57:25,521 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:57:25,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:57:25,523 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:57:25,523 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:57:25,524 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-08 18:57:25,526 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-08 18:57:25,527 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-08 18:57:25,527 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-08 18:57:25,528 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-08 18:57:25,528 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-08 18:57:25,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:57:25,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-08 18:57:25,533 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:57:25,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:57:25,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:57:25,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:57:25,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-08 18:57:25,535 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-08 18:57:25,535 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-08 18:57:25,536 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:57:25,536 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:57:25,536 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:57:25,537 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:57:25,544 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-08 18:57:25,545 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:57:25,545 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:57:25,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:57:25,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:57:25,546 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:57:25,547 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-08 18:57:25,547 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_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c973e7f310a848892a18e3f534717b85b3f4d9e6c87fd06bd7bcf01c28300fa4 [2024-11-08 18:57:25,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:57:26,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:57:26,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:57:26,010 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:57:26,012 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:57:26,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/loop-acceleration/phases_2-2.c Unable to find full path for "g++" [2024-11-08 18:57:28,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:57:28,686 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:57:28,687 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-11-08 18:57:28,701 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/data/85d95b91c/0e7d97a4496e470ca60a45b73f52a225/FLAG7dd86f125 [2024-11-08 18:57:28,771 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/data/85d95b91c/0e7d97a4496e470ca60a45b73f52a225 [2024-11-08 18:57:28,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:57:28,791 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:57:28,793 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:57:28,794 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:57:28,807 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:57:28,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:57:28" (1/1) ... [2024-11-08 18:57:28,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6367ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:28, skipping insertion in model container [2024-11-08 18:57:28,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:57:28" (1/1) ... [2024-11-08 18:57:28,861 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:57:29,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:57:29,225 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:57:29,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:57:29,266 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:57:29,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29 WrapperNode [2024-11-08 18:57:29,267 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:57:29,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:57:29,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:57:29,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:57:29,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (1/1) ... [2024-11-08 18:57:29,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (1/1) ... [2024-11-08 18:57:29,315 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2024-11-08 18:57:29,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:57:29,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:57:29,318 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:57:29,318 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:57:29,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (1/1) ... [2024-11-08 18:57:29,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (1/1) ... [2024-11-08 18:57:29,335 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (1/1) ... [2024-11-08 18:57:29,348 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:57:29,348 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (1/1) ... [2024-11-08 18:57:29,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (1/1) ... [2024-11-08 18:57:29,352 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (1/1) ... [2024-11-08 18:57:29,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (1/1) ... [2024-11-08 18:57:29,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (1/1) ... [2024-11-08 18:57:29,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (1/1) ... [2024-11-08 18:57:29,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:57:29,361 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:57:29,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:57:29,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:57:29,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (1/1) ... [2024-11-08 18:57:29,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:57:29,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:29,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:57:29,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-08 18:57:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:57:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:57:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:57:29,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:57:29,617 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:57:29,621 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:57:29,815 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-08 18:57:29,816 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:57:29,834 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:57:29,834 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:57:29,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:29 BoogieIcfgContainer [2024-11-08 18:57:29,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:57:29,837 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-08 18:57:29,837 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-08 18:57:29,844 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-08 18:57:29,845 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:57:29,846 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.11 06:57:28" (1/3) ... [2024-11-08 18:57:29,847 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15b17a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 06:57:29, skipping insertion in model container [2024-11-08 18:57:29,848 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:57:29,848 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:29" (2/3) ... [2024-11-08 18:57:29,849 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15b17a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 06:57:29, skipping insertion in model container [2024-11-08 18:57:29,849 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:57:29,849 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:29" (3/3) ... [2024-11-08 18:57:29,853 INFO L332 chiAutomizerObserver]: Analyzing ICFG phases_2-2.c [2024-11-08 18:57:29,968 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-08 18:57:29,969 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-08 18:57:29,969 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-08 18:57:29,969 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-08 18:57:29,970 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-08 18:57:29,970 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-08 18:57:29,970 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-08 18:57:29,972 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-08 18:57:29,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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) [2024-11-08 18:57:30,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 18:57:30,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:57:30,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:57:30,024 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-08 18:57:30,025 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 18:57:30,025 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-08 18:57:30,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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) [2024-11-08 18:57:30,029 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 18:57:30,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:57:30,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:57:30,031 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-08 18:57:30,032 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 18:57:30,044 INFO L745 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3); 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post5#1, main_~x~0#1, main_~y~0#1;main_~x~0#1 := 1;havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 9#L21true assume !!(main_~y~0#1 % 4294967296 > 0); 3#L24-2true [2024-11-08 18:57:30,045 INFO L747 eck$LassoCheckResult]: Loop: 3#L24-2true assume main_~x~0#1 % 4294967296 < main_~y~0#1 % 4294967296; 5#L23-1true assume !!(main_~x~0#1 % 4294967296 < main_~y~0#1 % 4294967296); 12#L24true assume main_~x~0#1 % 4294967296 < main_~y~0#1 % 4294967296 / (main_~x~0#1 % 4294967296) % 4294967296;main_~x~0#1 := main_~x~0#1 * main_~x~0#1; 3#L24-2true [2024-11-08 18:57:30,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:30,058 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-11-08 18:57:30,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:30,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124413733] [2024-11-08 18:57:30,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:30,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:30,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:57:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:30,295 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:57:30,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:30,301 INFO L85 PathProgramCache]: Analyzing trace with hash 40877, now seen corresponding path program 1 times [2024-11-08 18:57:30,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:30,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788434184] [2024-11-08 18:57:30,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:30,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:57:30,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1851403188] [2024-11-08 18:57:30,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:30,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:30,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:30,360 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:30,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:57:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:30,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:57:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:30,493 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:57:30,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:30,500 INFO L85 PathProgramCache]: Analyzing trace with hash 889570346, now seen corresponding path program 1 times [2024-11-08 18:57:30,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:30,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298345915] [2024-11-08 18:57:30,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:30,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:57:30,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1319257436] [2024-11-08 18:57:30,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:30,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:30,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:30,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:30,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:57:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:30,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:57:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:30,703 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:57:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:31,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:57:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:31,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.11 06:57:31 BoogieIcfgContainer [2024-11-08 18:57:31,199 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-08 18:57:31,200 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:57:31,200 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:57:31,200 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:57:31,201 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:29" (3/4) ... [2024-11-08 18:57:31,204 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-08 18:57:31,257 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:57:31,257 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:57:31,259 INFO L158 Benchmark]: Toolchain (without parser) took 2468.98ms. Allocated memory is still 153.1MB. Free memory was 124.4MB in the beginning and 77.9MB in the end (delta: 46.5MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2024-11-08 18:57:31,260 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:57:31,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.23ms. Allocated memory is still 153.1MB. Free memory was 124.1MB in the beginning and 113.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-11-08 18:57:31,262 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.91ms. Allocated memory is still 153.1MB. Free memory was 113.1MB in the beginning and 111.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:57:31,263 INFO L158 Benchmark]: Boogie Preprocessor took 42.89ms. Allocated memory is still 153.1MB. Free memory was 111.8MB in the beginning and 110.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:57:31,264 INFO L158 Benchmark]: RCFGBuilder took 474.30ms. Allocated memory is still 153.1MB. Free memory was 110.3MB in the beginning and 115.6MB in the end (delta: -5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 18:57:31,265 INFO L158 Benchmark]: BuchiAutomizer took 1361.99ms. Allocated memory is still 153.1MB. Free memory was 115.2MB in the beginning and 79.9MB in the end (delta: 35.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-08 18:57:31,268 INFO L158 Benchmark]: Witness Printer took 57.78ms. Allocated memory is still 153.1MB. Free memory was 79.9MB in the beginning and 77.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:57:31,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.23ms. Allocated memory is still 153.1MB. Free memory was 124.1MB in the beginning and 113.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.91ms. Allocated memory is still 153.1MB. Free memory was 113.1MB in the beginning and 111.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.89ms. Allocated memory is still 153.1MB. Free memory was 111.8MB in the beginning and 110.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.30ms. Allocated memory is still 153.1MB. Free memory was 110.3MB in the beginning and 115.6MB in the end (delta: -5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1361.99ms. Allocated memory is still 153.1MB. Free memory was 115.2MB in the beginning and 79.9MB in the end (delta: 35.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 57.78ms. Allocated memory is still 153.1MB. Free memory was 79.9MB in the beginning and 77.9MB 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 1.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. 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: 23]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L18] unsigned int x = 1; [L19] unsigned int y = __VERIFIER_nondet_uint(); [L21] COND FALSE !(!(y > 0)) VAL [x=1, y=2] Loop: [L23] COND FALSE !(x < y) [L23] COND TRUE x < y [L24] COND TRUE x < y / x [L25] x *= x End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L18] unsigned int x = 1; [L19] unsigned int y = __VERIFIER_nondet_uint(); [L21] COND FALSE !(!(y > 0)) VAL [x=1, y=2] Loop: [L23] COND FALSE !(x < y) [L23] COND TRUE x < y [L24] COND TRUE x < y / x [L25] x *= x End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-08 18:57:31,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:57:31,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:57:31,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c190a0e6-2225-40f1-ad47-ba70f08e3bd7/bin/uautomizer-verify-jihMAELWvX/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)