./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invariants/const.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a 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_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invariants/const.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU --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 0ebdefedfc7e108e7bae18db069bacfb3751fa9728b9afc72476be5975c743d8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:07:22,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:07:22,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:07:22,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:07:22,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:07:22,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:07:22,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:07:22,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:07:22,922 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:07:22,924 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:07:22,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:07:22,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:07:22,927 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:07:22,927 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:07:22,928 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:07:22,930 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:07:22,930 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:07:22,931 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:07:22,931 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:07:22,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:07:22,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:07:22,937 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:07:22,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:07:22,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:07:22,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:07:22,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:07:22,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:07:22,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:07:22,939 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:07:22,939 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:07:22,940 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:07:22,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:07:22,941 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:07:22,942 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:07:22,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:07:22,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:07:22,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:07:22,943 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:07:22,944 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:07:22,944 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_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ebdefedfc7e108e7bae18db069bacfb3751fa9728b9afc72476be5975c743d8 [2024-10-31 22:07:23,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:07:23,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:07:23,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:07:23,313 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:07:23,314 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:07:23,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/loop-invariants/const.c Unable to find full path for "g++" [2024-10-31 22:07:25,419 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:07:25,637 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:07:25,638 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/sv-benchmarks/c/loop-invariants/const.c [2024-10-31 22:07:25,646 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/data/05da129f3/45e27110031e48deaeabdf88124a7c1c/FLAG0f806b283 [2024-10-31 22:07:26,021 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/data/05da129f3/45e27110031e48deaeabdf88124a7c1c [2024-10-31 22:07:26,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:07:26,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:07:26,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:26,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:07:26,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:07:26,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c59ed66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26, skipping insertion in model container [2024-10-31 22:07:26,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:07:26,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:26,267 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:07:26,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:26,304 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:07:26,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26 WrapperNode [2024-10-31 22:07:26,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:26,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:26,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:07:26,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:07:26,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,340 INFO L138 Inliner]: procedures = 13, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 43 [2024-10-31 22:07:26,341 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:26,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:07:26,342 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:07:26,342 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:07:26,355 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,357 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,368 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-10-31 22:07:26,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,368 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,371 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:07:26,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:07:26,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:07:26,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:07:26,381 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (1/1) ... [2024-10-31 22:07:26,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:07:26,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:26,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:26,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:07:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:07:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:07:26,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:07:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:07:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:07:26,538 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:07:26,542 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:07:26,664 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-10-31 22:07:26,665 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:07:26,677 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:07:26,677 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:07:26,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:26 BoogieIcfgContainer [2024-10-31 22:07:26,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:07:26,679 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:07:26,679 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:07:26,683 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:07:26,684 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:07:26,684 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:07:26" (1/3) ... [2024-10-31 22:07:26,685 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eaf078d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:07:26, skipping insertion in model container [2024-10-31 22:07:26,685 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:07:26,685 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:26" (2/3) ... [2024-10-31 22:07:26,686 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eaf078d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:07:26, skipping insertion in model container [2024-10-31 22:07:26,686 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:07:26,686 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:26" (3/3) ... [2024-10-31 22:07:26,687 INFO L332 chiAutomizerObserver]: Analyzing ICFG const.c [2024-10-31 22:07:26,748 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:07:26,748 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:07:26,749 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:07:26,749 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:07:26,749 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:07:26,749 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:07:26,749 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:07:26,750 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:07:26,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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) [2024-10-31 22:07:26,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:07:26,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:26,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:26,773 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:07:26,773 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-31 22:07:26,773 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:07:26,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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) [2024-10-31 22:07:26,775 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:07:26,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:07:26,775 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:07:26,776 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:07:26,776 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-31 22:07:26,782 INFO L745 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call write~init~int#1(99, 2, 0, 1);call write~init~int#1(111, 2, 1, 1);call write~init~int#1(110, 2, 2, 1);call write~init~int#1(115, 2, 3, 1);call write~init~int#1(116, 2, 4, 1);call write~init~int#1(46, 2, 5, 1);call write~init~int#1(99, 2, 6, 1);call write~init~int#1(0, 2, 7, 1);call #Ultimate.allocInit(12, 3); 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~pre5#1, main_#t~nondet6#1, main_~s~0#1;main_~s~0#1 := 0; 3#L24-2true [2024-10-31 22:07:26,782 INFO L747 eck$LassoCheckResult]: Loop: 3#L24-2true havoc main_#t~nondet4#1; 13#L20-1true assume !!(0 != main_#t~nondet4#1 % 4294967296);havoc main_#t~nondet4#1; 9#L21true assume !(0 != main_~s~0#1 % 4294967296); 14#L21-2true havoc main_#t~nondet6#1; 15#L24true assume !(0 != main_#t~nondet6#1 % 4294967296);havoc main_#t~nondet6#1; 3#L24-2true [2024-10-31 22:07:26,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:26,789 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:07:26,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:26,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560967953] [2024-10-31 22:07:26,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:26,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:26,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:26,924 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:26,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:26,927 INFO L85 PathProgramCache]: Analyzing trace with hash 35468252, now seen corresponding path program 1 times [2024-10-31 22:07:26,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:26,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881765860] [2024-10-31 22:07:26,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:26,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:26,946 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:26,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:26,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:26,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907738, now seen corresponding path program 1 times [2024-10-31 22:07:26,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:26,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624013610] [2024-10-31 22:07:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:26,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:26,982 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:26,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:07:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:27,470 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:07:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:07:27,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:07:27 BoogieIcfgContainer [2024-10-31 22:07:27,525 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:07:27,525 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:07:27,525 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:07:27,525 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:07:27,526 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:26" (3/4) ... [2024-10-31 22:07:27,528 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-31 22:07:27,583 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:07:27,583 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:07:27,588 INFO L158 Benchmark]: Toolchain (without parser) took 1556.33ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 117.8MB in the beginning and 184.0MB in the end (delta: -66.2MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2024-10-31 22:07:27,590 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 155.2MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:27,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.21ms. Allocated memory is still 155.2MB. Free memory was 117.3MB in the beginning and 105.5MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:07:27,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.97ms. Allocated memory is still 155.2MB. Free memory was 105.5MB in the beginning and 104.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:07:27,592 INFO L158 Benchmark]: Boogie Preprocessor took 37.08ms. Allocated memory is still 155.2MB. Free memory was 104.0MB in the beginning and 102.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:07:27,593 INFO L158 Benchmark]: RCFGBuilder took 298.49ms. Allocated memory is still 155.2MB. Free memory was 102.0MB in the beginning and 92.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:07:27,593 INFO L158 Benchmark]: BuchiAutomizer took 845.54ms. Allocated memory is still 155.2MB. Free memory was 92.1MB in the beginning and 124.8MB in the end (delta: -32.7MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2024-10-31 22:07:27,594 INFO L158 Benchmark]: Witness Printer took 58.23ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 124.8MB in the beginning and 184.0MB in the end (delta: -59.3MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-10-31 22:07:27,598 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 155.2MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.21ms. Allocated memory is still 155.2MB. Free memory was 117.3MB in the beginning and 105.5MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.97ms. Allocated memory is still 155.2MB. Free memory was 105.5MB in the beginning and 104.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.08ms. Allocated memory is still 155.2MB. Free memory was 104.0MB in the beginning and 102.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 298.49ms. Allocated memory is still 155.2MB. Free memory was 102.0MB in the beginning and 92.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 845.54ms. Allocated memory is still 155.2MB. Free memory was 92.1MB in the beginning and 124.8MB in the end (delta: -32.7MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Witness Printer took 58.23ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 124.8MB in the beginning and 184.0MB in the end (delta: -59.3MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 20]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L19] unsigned int s = 0; VAL [s=0] Loop: [L20] COND TRUE __VERIFIER_nondet_uint() [L21] COND FALSE !(s != 0) [L24] COND FALSE !(__VERIFIER_nondet_uint()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 20]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L19] unsigned int s = 0; VAL [s=0] Loop: [L20] COND TRUE __VERIFIER_nondet_uint() [L21] COND FALSE !(s != 0) [L24] COND FALSE !(__VERIFIER_nondet_uint()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:07:27,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b89754c9-21cd-4065-800a-9d77452555cc/bin/uautomizer-verify-4GaUIPS5ZU/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)