./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/n.c40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/n.c40.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya --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 ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:45:54,574 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:45:54,638 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-28 23:45:54,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:45:54,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:45:54,669 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:45:54,669 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:45:54,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:45:54,671 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:45:54,671 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:45:54,672 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:45:54,673 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:45:54,673 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:45:54,674 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-28 23:45:54,674 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-28 23:45:54,675 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-28 23:45:54,675 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-28 23:45:54,676 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-28 23:45:54,676 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-28 23:45:54,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:45:54,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-28 23:45:54,678 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:45:54,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:45:54,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:45:54,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:45:54,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-28 23:45:54,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-28 23:45:54,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-28 23:45:54,681 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:45:54,682 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:45:54,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:45:54,682 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-28 23:45:54,683 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:45:54,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:45:54,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:45:54,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:45:54,684 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:45:54,684 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-28 23:45:54,684 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_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 [2023-11-28 23:45:54,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:45:54,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:45:54,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:45:54,953 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:45:54,953 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:45:54,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/loops/n.c40.c [2023-11-28 23:45:57,678 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:45:57,853 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:45:57,853 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/sv-benchmarks/c/loops/n.c40.c [2023-11-28 23:45:57,859 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/data/242726577/dc6b30b0ea754230bbe133ee3d5bd288/FLAG175a2a606 [2023-11-28 23:45:57,873 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/data/242726577/dc6b30b0ea754230bbe133ee3d5bd288 [2023-11-28 23:45:57,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:45:57,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:45:57,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:45:57,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:45:57,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:45:57,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:45:57" (1/1) ... [2023-11-28 23:45:57,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed0938b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:57, skipping insertion in model container [2023-11-28 23:45:57,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:45:57" (1/1) ... [2023-11-28 23:45:57,904 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:45:58,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:45:58,038 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:45:58,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:45:58,067 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:45:58,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58 WrapperNode [2023-11-28 23:45:58,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:45:58,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:45:58,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:45:58,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:45:58,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (1/1) ... [2023-11-28 23:45:58,082 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (1/1) ... [2023-11-28 23:45:58,098 INFO L138 Inliner]: procedures = 12, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2023-11-28 23:45:58,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:45:58,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:45:58,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:45:58,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:45:58,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (1/1) ... [2023-11-28 23:45:58,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (1/1) ... [2023-11-28 23:45:58,110 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (1/1) ... [2023-11-28 23:45:58,122 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 8, 3, 4]. 47 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8, 0, 0]. The 4 writes are split as follows [0, 0, 1, 3]. [2023-11-28 23:45:58,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (1/1) ... [2023-11-28 23:45:58,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (1/1) ... [2023-11-28 23:45:58,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (1/1) ... [2023-11-28 23:45:58,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (1/1) ... [2023-11-28 23:45:58,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (1/1) ... [2023-11-28 23:45:58,136 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (1/1) ... [2023-11-28 23:45:58,139 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:45:58,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:45:58,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:45:58,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:45:58,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (1/1) ... [2023-11-28 23:45:58,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:45:58,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:45:58,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:45:58,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-28 23:45:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-28 23:45:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-28 23:45:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-28 23:45:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-28 23:45:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:45:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:45:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:45:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-28 23:45:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-28 23:45:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-28 23:45:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-28 23:45:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:45:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 23:45:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 23:45:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-28 23:45:58,272 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:45:58,273 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:45:58,379 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:45:58,385 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:45:58,386 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:45:58,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:45:58 BoogieIcfgContainer [2023-11-28 23:45:58,387 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:45:58,388 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-28 23:45:58,388 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-28 23:45:58,391 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-28 23:45:58,391 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 23:45:58,391 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:45:57" (1/3) ... [2023-11-28 23:45:58,392 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2747669e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:45:58, skipping insertion in model container [2023-11-28 23:45:58,392 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 23:45:58,392 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:45:58" (2/3) ... [2023-11-28 23:45:58,393 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2747669e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:45:58, skipping insertion in model container [2023-11-28 23:45:58,393 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 23:45:58,393 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:45:58" (3/3) ... [2023-11-28 23:45:58,394 INFO L332 chiAutomizerObserver]: Analyzing ICFG n.c40.c [2023-11-28 23:45:58,437 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-28 23:45:58,437 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-28 23:45:58,437 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-28 23:45:58,437 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-28 23:45:58,437 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-28 23:45:58,437 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-28 23:45:58,438 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-28 23:45:58,438 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-28 23:45:58,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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) [2023-11-28 23:45:58,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-28 23:45:58,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 23:45:58,454 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 23:45:58,457 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-28 23:45:58,457 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-28 23:45:58,458 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-28 23:45:58,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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) [2023-11-28 23:45:58,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-28 23:45:58,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 23:45:58,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 23:45:58,460 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-28 23:45:58,460 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-28 23:45:58,468 INFO L748 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call write~init~int#1(110, 2, 0, 1);call write~init~int#1(46, 2, 1, 1);call write~init~int#1(99, 2, 2, 1);call write~init~int#1(52, 2, 3, 1);call write~init~int#1(48, 2, 4, 1);call write~init~int#1(46, 2, 5, 1);call write~init~int#1(99, 2, 6, 1);call write~init~int#1(0, 2, 7, 1);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(100, 4);~#x~0.base, ~#x~0.offset := 4, 0;#memory_int#2 := ~initToZeroAtPointerBaseAddress~int(#memory_int#2, ~#x~0.base);call #Ultimate.allocInit(100, 5);~#y~0.base, ~#y~0.offset := 5, 0;#memory_int#3 := ~initToZeroAtPointerBaseAddress~int(#memory_int#3, ~#y~0.base);~i~0 := 0;~j~0 := 0;~k~0 := 0; 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem5#1, main_#t~mem8#1;havoc main_#t~nondet4#1;~k~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~i~0 := 0; 6#L14-3true [2023-11-28 23:45:58,468 INFO L750 eck$LassoCheckResult]: Loop: 6#L14-3true call main_#t~mem5#1 := read~int#2(~#x~0.base, ~#x~0.offset + ~i~0, 1); 13#L14-1true assume !!(0 != main_#t~mem5#1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int#2(~#x~0.base, ~#x~0.offset + ~i~0, 1);call write~int#3(main_#t~mem6#1, ~#y~0.base, ~#y~0.offset + ~i~0, 1);havoc main_#t~mem6#1;main_#t~post7#1 := ~i~0;~i~0 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 6#L14-3true [2023-11-28 23:45:58,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:58,474 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-28 23:45:58,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:58,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385847970] [2023-11-28 23:45:58,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:58,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:45:58,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:45:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:45:58,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:45:58,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2023-11-28 23:45:58,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:58,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741698483] [2023-11-28 23:45:58,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:58,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:45:58,640 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:45:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:45:58,654 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:45:58,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:58,655 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2023-11-28 23:45:58,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:58,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686341455] [2023-11-28 23:45:58,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:58,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:45:58,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:58,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686341455] [2023-11-28 23:45:58,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686341455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:58,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:45:58,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:45:58,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054628979] [2023-11-28 23:45:58,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:58,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:59,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:45:59,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:45:59,033 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-11-28 23:45:59,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:45:59,072 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2023-11-28 23:45:59,074 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 12 transitions. [2023-11-28 23:45:59,075 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-28 23:45:59,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-11-28 23:45:59,079 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-28 23:45:59,079 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-28 23:45:59,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-28 23:45:59,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:59,080 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 23:45:59,080 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 23:45:59,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:45:59,085 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 23:45:59,085 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-28 23:45:59,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-28 23:45:59,085 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-28 23:45:59,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-28 23:45:59,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:45:59 BoogieIcfgContainer [2023-11-28 23:45:59,091 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-28 23:45:59,092 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 23:45:59,092 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 23:45:59,092 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 23:45:59,093 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:45:58" (3/4) ... [2023-11-28 23:45:59,094 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 23:45:59,095 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 23:45:59,096 INFO L158 Benchmark]: Toolchain (without parser) took 1219.55ms. Allocated memory is still 190.8MB. Free memory was 151.7MB in the beginning and 88.3MB in the end (delta: 63.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-28 23:45:59,097 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory was 87.0MB in the beginning and 87.0MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:45:59,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.75ms. Allocated memory is still 190.8MB. Free memory was 151.7MB in the beginning and 141.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 23:45:59,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.34ms. Allocated memory is still 190.8MB. Free memory was 141.2MB in the beginning and 139.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:45:59,099 INFO L158 Benchmark]: Boogie Preprocessor took 39.48ms. Allocated memory is still 190.8MB. Free memory was 139.9MB in the beginning and 137.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:45:59,100 INFO L158 Benchmark]: RCFGBuilder took 247.46ms. Allocated memory is still 190.8MB. Free memory was 137.8MB in the beginning and 126.5MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 23:45:59,100 INFO L158 Benchmark]: BuchiAutomizer took 703.68ms. Allocated memory is still 190.8MB. Free memory was 126.1MB in the beginning and 88.8MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-28 23:45:59,101 INFO L158 Benchmark]: Witness Printer took 3.53ms. Allocated memory is still 190.8MB. Free memory was 88.8MB in the beginning and 88.3MB in the end (delta: 413.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:45:59,104 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory was 87.0MB in the beginning and 87.0MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.75ms. Allocated memory is still 190.8MB. Free memory was 151.7MB in the beginning and 141.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.34ms. Allocated memory is still 190.8MB. Free memory was 141.2MB in the beginning and 139.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.48ms. Allocated memory is still 190.8MB. Free memory was 139.9MB in the beginning and 137.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 247.46ms. Allocated memory is still 190.8MB. Free memory was 137.8MB in the beginning and 126.5MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 703.68ms. Allocated memory is still 190.8MB. Free memory was 126.1MB in the beginning and 88.8MB in the end (delta: 37.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 3.53ms. Allocated memory is still 190.8MB. Free memory was 88.8MB in the beginning and 88.3MB in the end (delta: 413.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 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 1. 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: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 10 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 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: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-28 23:45:59,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78b73e1-72a1-4234-b996-9366b5eb637c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE