./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_21.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f 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_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_21.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 09b58293612eb320ba1daf9ca7fe4947dbbcf9de2baf65b6860d058db21da006 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:30:33,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:30:33,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:30:33,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:30:33,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:30:33,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:30:33,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:30:33,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:30:33,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:30:33,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:30:33,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:30:33,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:30:33,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:30:33,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:30:33,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:30:33,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:30:33,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:30:33,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:30:33,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:30:33,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:30:33,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:30:33,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:30:33,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:30:33,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:30:33,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:30:33,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:30:33,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:30:33,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:30:33,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:30:33,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:30:33,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:30:33,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:30:33,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:30:33,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:30:33,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:30:33,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:30:33,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:30:33,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:30:33,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:30:33,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:30:33,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:30:33,767 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 12:30:33,817 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:30:33,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:30:33,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:30:33,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:30:33,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:30:33,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:30:33,821 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:30:33,821 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 12:30:33,821 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 12:30:33,821 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 12:30:33,823 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 12:30:33,823 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 12:30:33,823 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 12:30:33,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:30:33,824 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:30:33,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:30:33,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:30:33,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 12:30:33,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 12:30:33,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 12:30:33,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:30:33,826 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 12:30:33,826 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:30:33,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 12:30:33,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:30:33,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:30:33,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:30:33,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:30:33,829 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 12:30:33,830 INFO L138 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_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09b58293612eb320ba1daf9ca7fe4947dbbcf9de2baf65b6860d058db21da006 [2022-11-16 12:30:34,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:30:34,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:30:34,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:30:34,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:30:34,159 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:30:34,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-restricted-15/NO_21.c [2022-11-16 12:30:34,263 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/data/b1c713489/f50ac4fb11764f2ba051040544de7f4a/FLAGfdfce8514 [2022-11-16 12:30:34,808 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:30:34,809 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/sv-benchmarks/c/termination-restricted-15/NO_21.c [2022-11-16 12:30:34,814 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/data/b1c713489/f50ac4fb11764f2ba051040544de7f4a/FLAGfdfce8514 [2022-11-16 12:30:35,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/data/b1c713489/f50ac4fb11764f2ba051040544de7f4a [2022-11-16 12:30:35,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:30:35,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:30:35,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:30:35,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:30:35,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:30:35,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3420f5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35, skipping insertion in model container [2022-11-16 12:30:35,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:30:35,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:30:35,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:30:35,460 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:30:35,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:30:35,492 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:30:35,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35 WrapperNode [2022-11-16 12:30:35,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:30:35,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:30:35,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:30:35,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:30:35,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,534 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2022-11-16 12:30:35,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:30:35,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:30:35,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:30:35,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:30:35,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,556 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:30:35,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:30:35,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:30:35,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:30:35,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35" (1/1) ... [2022-11-16 12:30:35,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:30:35,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:30:35,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:30:35,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 12:30:35,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:30:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:30:35,753 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:30:35,757 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:30:35,832 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:30:35,844 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:30:35,844 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:30:35,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:35 BoogieIcfgContainer [2022-11-16 12:30:35,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:30:35,850 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 12:30:35,850 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 12:30:35,856 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 12:30:35,857 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:30:35,857 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:30:35" (1/3) ... [2022-11-16 12:30:35,860 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@515677f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:30:35, skipping insertion in model container [2022-11-16 12:30:35,861 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:30:35,861 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:35" (2/3) ... [2022-11-16 12:30:35,861 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@515677f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:30:35, skipping insertion in model container [2022-11-16 12:30:35,862 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:30:35,862 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:35" (3/3) ... [2022-11-16 12:30:35,864 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_21.c [2022-11-16 12:30:35,936 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 12:30:35,937 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 12:30:35,937 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 12:30:35,937 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 12:30:35,937 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 12:30:35,938 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 12:30:35,938 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 12:30:35,938 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 12:30:35,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-16 12:30:35,963 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 12:30:35,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:30:35,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:30:35,970 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 12:30:35,970 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-16 12:30:35,970 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 12:30:35,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-16 12:30:35,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 12:30:35,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:30:35,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:30:35,972 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 12:30:35,973 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-16 12:30:35,981 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 4#L9-2true [2022-11-16 12:30:35,982 INFO L750 eck$LassoCheckResult]: Loop: 4#L9-2true assume !!(main_~i~0#1 < 100);main_~i~0#1 := 1 + main_~i~0#1;main_~i~0#1 := main_~i~0#1 - 1; 4#L9-2true [2022-11-16 12:30:35,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:35,989 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 12:30:36,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:36,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232531847] [2022-11-16 12:30:36,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:36,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:30:36,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:30:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:30:36,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:30:36,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:36,117 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-11-16 12:30:36,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:36,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089677655] [2022-11-16 12:30:36,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:36,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:30:36,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:30:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:30:36,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:30:36,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:36,134 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-16 12:30:36,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:36,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169810706] [2022-11-16 12:30:36,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:36,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:30:36,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:30:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:30:36,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:30:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:30:36,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:30:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:30:36,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:30:36 BoogieIcfgContainer [2022-11-16 12:30:36,258 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 12:30:36,259 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:30:36,259 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:30:36,259 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:30:36,260 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:35" (3/4) ... [2022-11-16 12:30:36,263 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-16 12:30:36,300 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:30:36,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:30:36,302 INFO L158 Benchmark]: Toolchain (without parser) took 1106.10ms. Allocated memory is still 155.2MB. Free memory was 121.9MB in the beginning and 103.0MB in the end (delta: 18.8MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-11-16 12:30:36,303 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 47.0MB in the beginning and 47.0MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:30:36,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.10ms. Allocated memory is still 155.2MB. Free memory was 121.6MB in the beginning and 131.5MB in the end (delta: -9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:30:36,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.87ms. Allocated memory is still 155.2MB. Free memory was 131.5MB in the beginning and 130.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:30:36,305 INFO L158 Benchmark]: Boogie Preprocessor took 21.77ms. Allocated memory is still 155.2MB. Free memory was 130.2MB in the beginning and 129.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:30:36,306 INFO L158 Benchmark]: RCFGBuilder took 288.53ms. Allocated memory is still 155.2MB. Free memory was 129.1MB in the beginning and 121.3MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 12:30:36,307 INFO L158 Benchmark]: BuchiAutomizer took 408.31ms. Allocated memory is still 155.2MB. Free memory was 121.0MB in the beginning and 104.8MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:30:36,308 INFO L158 Benchmark]: Witness Printer took 41.35ms. Allocated memory is still 155.2MB. Free memory was 104.6MB in the beginning and 103.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:30:36,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory was 47.0MB in the beginning and 47.0MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.10ms. Allocated memory is still 155.2MB. Free memory was 121.6MB in the beginning and 131.5MB in the end (delta: -9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.87ms. Allocated memory is still 155.2MB. Free memory was 131.5MB in the beginning and 130.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.77ms. Allocated memory is still 155.2MB. Free memory was 130.2MB in the beginning and 129.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 288.53ms. Allocated memory is still 155.2MB. Free memory was 129.1MB in the beginning and 121.3MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 408.31ms. Allocated memory is still 155.2MB. Free memory was 121.0MB in the beginning and 104.8MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 41.35ms. Allocated memory is still 155.2MB. Free memory was 104.6MB in the beginning and 103.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = 0 VAL [i=0] Loop: [L9] COND TRUE i < 100 [L10] i = i+1 [L11] i = i-1 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 VAL [i=0] Loop: [L9] COND TRUE i < 100 [L10] i = i+1 [L11] i = i-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-16 12:30:36,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36f44e61-2cb1-4797-8057-cf148fa33ad9/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)