./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b 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_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN --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 32bit --witnessprinter.graph.data.programhash 2285a0532f76c71ed3da856eea9f62f11be9df4ff1d205bf57c17e8ec94f6df8 --- 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-6b4ec56 [2022-11-20 11:39:00,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:39:00,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:39:01,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:39:01,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:39:01,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:39:01,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:39:01,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:39:01,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:39:01,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:39:01,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:39:01,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:39:01,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:39:01,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:39:01,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:39:01,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:39:01,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:39:01,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:39:01,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:39:01,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:39:01,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:39:01,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:39:01,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:39:01,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:39:01,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:39:01,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:39:01,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:39:01,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:39:01,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:39:01,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:39:01,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:39:01,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:39:01,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:39:01,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:39:01,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:39:01,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:39:01,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:39:01,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:39:01,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:39:01,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:39:01,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:39:01,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 11:39:01,146 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:39:01,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:39:01,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:39:01,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:39:01,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:39:01,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:39:01,149 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:39:01,149 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 11:39:01,150 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 11:39:01,150 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 11:39:01,151 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 11:39:01,151 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 11:39:01,152 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 11:39:01,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:39:01,152 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:39:01,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:39:01,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:39:01,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:39:01,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:39:01,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 11:39:01,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 11:39:01,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 11:39:01,154 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:39:01,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:39:01,155 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 11:39:01,155 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:39:01,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 11:39:01,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:39:01,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:39:01,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:39:01,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:39:01,159 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 11:39:01,159 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_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2285a0532f76c71ed3da856eea9f62f11be9df4ff1d205bf57c17e8ec94f6df8 [2022-11-20 11:39:01,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:39:01,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:39:01,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:39:01,537 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:39:01,538 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:39:01,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/loops/while_infinite_loop_2.c [2022-11-20 11:39:04,616 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:39:04,797 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:39:04,797 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/sv-benchmarks/c/loops/while_infinite_loop_2.c [2022-11-20 11:39:04,803 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/data/da2214952/b0dc169f055a43f0a78a6e64ea3edbcb/FLAG6a268b1b3 [2022-11-20 11:39:04,826 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/data/da2214952/b0dc169f055a43f0a78a6e64ea3edbcb [2022-11-20 11:39:04,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:39:04,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:39:04,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:39:04,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:39:04,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:39:04,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:39:04" (1/1) ... [2022-11-20 11:39:04,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf6c445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:04, skipping insertion in model container [2022-11-20 11:39:04,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:39:04" (1/1) ... [2022-11-20 11:39:04,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:39:04,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:39:05,021 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/sv-benchmarks/c/loops/while_infinite_loop_2.c[333,346] [2022-11-20 11:39:05,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:39:05,043 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:39:05,058 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/sv-benchmarks/c/loops/while_infinite_loop_2.c[333,346] [2022-11-20 11:39:05,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:39:05,075 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:39:05,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05 WrapperNode [2022-11-20 11:39:05,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:39:05,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:39:05,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:39:05,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:39:05,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05" (1/1) ... [2022-11-20 11:39:05,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05" (1/1) ... [2022-11-20 11:39:05,120 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 29 [2022-11-20 11:39:05,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:39:05,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:39:05,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:39:05,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:39:05,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05" (1/1) ... [2022-11-20 11:39:05,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05" (1/1) ... [2022-11-20 11:39:05,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05" (1/1) ... [2022-11-20 11:39:05,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05" (1/1) ... [2022-11-20 11:39:05,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05" (1/1) ... [2022-11-20 11:39:05,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05" (1/1) ... [2022-11-20 11:39:05,150 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05" (1/1) ... [2022-11-20 11:39:05,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05" (1/1) ... [2022-11-20 11:39:05,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:39:05,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:39:05,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:39:05,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:39:05,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05" (1/1) ... [2022-11-20 11:39:05,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:39:05,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:39:05,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:39:05,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 11:39:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:39:05,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:39:05,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:39:05,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:39:05,316 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:39:05,318 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:39:05,418 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:39:05,425 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:39:05,426 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:39:05,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:39:05 BoogieIcfgContainer [2022-11-20 11:39:05,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:39:05,429 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 11:39:05,430 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 11:39:05,434 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 11:39:05,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:39:05,435 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:39:04" (1/3) ... [2022-11-20 11:39:05,436 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@458af639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:39:05, skipping insertion in model container [2022-11-20 11:39:05,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:39:05,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:39:05" (2/3) ... [2022-11-20 11:39:05,437 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@458af639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:39:05, skipping insertion in model container [2022-11-20 11:39:05,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:39:05,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:39:05" (3/3) ... [2022-11-20 11:39:05,438 INFO L332 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_2.c [2022-11-20 11:39:05,506 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 11:39:05,506 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 11:39:05,507 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 11:39:05,507 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 11:39:05,507 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 11:39:05,507 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 11:39:05,507 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 11:39:05,508 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 11:39:05,513 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) [2022-11-20 11:39:05,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 11:39:05,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:39:05,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:39:05,533 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 11:39:05,534 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 11:39:05,534 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 11:39:05,534 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) [2022-11-20 11:39:05,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 11:39:05,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:39:05,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:39:05,536 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 11:39:05,536 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 11:39:05,543 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1;main_~x~0#1 := 0; 13#L14-2true [2022-11-20 11:39:05,543 INFO L750 eck$LassoCheckResult]: Loop: 13#L14-2true assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 10#L6true assume !(0 == __VERIFIER_assert_~cond#1); 4#L6-2true assume { :end_inline___VERIFIER_assert } true; 13#L14-2true [2022-11-20 11:39:05,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:05,550 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 11:39:05,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:05,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540267309] [2022-11-20 11:39:05,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:05,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:39:05,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:39:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:39:05,676 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:39:05,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:05,680 INFO L85 PathProgramCache]: Analyzing trace with hash 40941, now seen corresponding path program 1 times [2022-11-20 11:39:05,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:05,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564377737] [2022-11-20 11:39:05,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:05,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:39:05,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:39:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:39:05,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:39:05,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:05,698 INFO L85 PathProgramCache]: Analyzing trace with hash 28699883, now seen corresponding path program 1 times [2022-11-20 11:39:05,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:05,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287138508] [2022-11-20 11:39:05,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:05,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:39:05,720 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:39:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:39:05,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:39:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:39:06,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:39:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:39:06,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:39:06 BoogieIcfgContainer [2022-11-20 11:39:06,128 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 11:39:06,129 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:39:06,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:39:06,129 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:39:06,130 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:39:05" (3/4) ... [2022-11-20 11:39:06,134 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 11:39:06,168 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:39:06,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:39:06,170 INFO L158 Benchmark]: Toolchain (without parser) took 1338.24ms. Allocated memory is still 192.9MB. Free memory was 152.2MB in the beginning and 160.8MB in the end (delta: -8.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:39:06,171 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:39:06,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.58ms. Allocated memory is still 192.9MB. Free memory was 151.8MB in the beginning and 142.2MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:39:06,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.42ms. Allocated memory is still 192.9MB. Free memory was 142.2MB in the beginning and 140.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:39:06,173 INFO L158 Benchmark]: Boogie Preprocessor took 39.57ms. Allocated memory is still 192.9MB. Free memory was 140.6MB in the beginning and 139.6MB in the end (delta: 996.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:39:06,174 INFO L158 Benchmark]: RCFGBuilder took 266.25ms. Allocated memory is still 192.9MB. Free memory was 139.6MB in the beginning and 130.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 11:39:06,174 INFO L158 Benchmark]: BuchiAutomizer took 698.95ms. Allocated memory is still 192.9MB. Free memory was 130.8MB in the beginning and 162.5MB in the end (delta: -31.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:39:06,175 INFO L158 Benchmark]: Witness Printer took 39.67ms. Allocated memory is still 192.9MB. Free memory was 161.7MB in the beginning and 160.8MB in the end (delta: 906.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:39:06,178 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.58ms. Allocated memory is still 192.9MB. Free memory was 151.8MB in the beginning and 142.2MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.42ms. Allocated memory is still 192.9MB. Free memory was 142.2MB in the beginning and 140.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.57ms. Allocated memory is still 192.9MB. Free memory was 140.6MB in the beginning and 139.6MB in the end (delta: 996.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 266.25ms. Allocated memory is still 192.9MB. Free memory was 139.6MB in the beginning and 130.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 698.95ms. Allocated memory is still 192.9MB. Free memory was 130.8MB in the beginning and 162.5MB in the end (delta: -31.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.67ms. Allocated memory is still 192.9MB. Free memory was 161.7MB in the beginning and 160.8MB in the end (delta: 906.4kB). 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L12] int x=0; VAL [x=0] Loop: [L14] COND TRUE 1 [L16] CALL __VERIFIER_assert(x==0) [L6] COND FALSE !(!(cond)) [L16] RET __VERIFIER_assert(x==0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x=0; VAL [x=0] Loop: [L14] COND TRUE 1 [L16] CALL __VERIFIER_assert(x==0) [L6] COND FALSE !(!(cond)) [L16] RET __VERIFIER_assert(x==0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 11:39:06,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a259041b-dd52-424c-8c8d-fe8e0aafe23c/bin/uautomizer-ug76WZFUDN/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)