./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg --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 .................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:02:46,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:02:46,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:02:46,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:02:46,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:02:46,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:02:46,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:02:46,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:02:46,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:02:46,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:02:46,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:02:46,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:02:46,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:02:46,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:02:46,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:02:46,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:02:46,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:02:46,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:02:46,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:02:46,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:02:46,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:02:46,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:02:46,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:02:46,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:02:46,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:02:46,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:02:46,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:02:46,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:02:46,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:02:46,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:02:46,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:02:46,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:02:46,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:02:46,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:02:46,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:02:46,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:02:46,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:02:46,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:02:46,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:02:46,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:02:46,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:02:46,979 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:02:47,026 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:02:47,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:02:47,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:02:47,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:02:47,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:02:47,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:02:47,030 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:02:47,030 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:02:47,031 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:02:47,031 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:02:47,032 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:02:47,032 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:02:47,032 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:02:47,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:02:47,033 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:02:47,033 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:02:47,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:02:47,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:02:47,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:02:47,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:02:47,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:02:47,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:02:47,035 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:02:47,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:02:47,035 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:02:47,035 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:02:47,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:02:47,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:02:47,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:02:47,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:02:47,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:02:47,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:02:47,040 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:02:47,041 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_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2285a0532f76c71ed3da856eea9f62f11be9df4ff1d205bf57c17e8ec94f6df8 [2021-10-28 09:02:47,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:02:47,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:02:47,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:02:47,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:02:47,330 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:02:47,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/loops/while_infinite_loop_2.c [2021-10-28 09:02:47,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/data/d1c9b842e/790aaacee9bd47b3a4484252abed8472/FLAGbce19fd15 [2021-10-28 09:02:47,861 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:02:47,862 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/sv-benchmarks/c/loops/while_infinite_loop_2.c [2021-10-28 09:02:47,869 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/data/d1c9b842e/790aaacee9bd47b3a4484252abed8472/FLAGbce19fd15 [2021-10-28 09:02:48,231 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/data/d1c9b842e/790aaacee9bd47b3a4484252abed8472 [2021-10-28 09:02:48,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:02:48,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:02:48,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:02:48,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:02:48,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:02:48,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:02:48" (1/1) ... [2021-10-28 09:02:48,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b4107f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48, skipping insertion in model container [2021-10-28 09:02:48,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:02:48" (1/1) ... [2021-10-28 09:02:48,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:02:48,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:02:48,456 WARN L228 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_f4eed8df-f361-42fa-98de-9974c7e8926f/sv-benchmarks/c/loops/while_infinite_loop_2.c[333,346] [2021-10-28 09:02:48,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:02:48,483 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:02:48,496 WARN L228 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_f4eed8df-f361-42fa-98de-9974c7e8926f/sv-benchmarks/c/loops/while_infinite_loop_2.c[333,346] [2021-10-28 09:02:48,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:02:48,512 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:02:48,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48 WrapperNode [2021-10-28 09:02:48,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:02:48,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:02:48,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:02:48,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:02:48,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48" (1/1) ... [2021-10-28 09:02:48,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48" (1/1) ... [2021-10-28 09:02:48,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:02:48,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:02:48,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:02:48,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:02:48,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48" (1/1) ... [2021-10-28 09:02:48,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48" (1/1) ... [2021-10-28 09:02:48,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48" (1/1) ... [2021-10-28 09:02:48,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48" (1/1) ... [2021-10-28 09:02:48,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48" (1/1) ... [2021-10-28 09:02:48,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48" (1/1) ... [2021-10-28 09:02:48,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48" (1/1) ... [2021-10-28 09:02:48,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:02:48,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:02:48,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:02:48,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:02:48,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48" (1/1) ... [2021-10-28 09:02:48,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:02:48,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:48,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:48,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:02:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:02:48,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:02:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:02:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:02:48,815 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:02:48,815 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-28 09:02:48,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:02:48 BoogieIcfgContainer [2021-10-28 09:02:48,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:02:48,818 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:02:48,818 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:02:48,823 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:02:48,824 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:02:48,824 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:02:48" (1/3) ... [2021-10-28 09:02:48,826 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9b5c26d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:02:48, skipping insertion in model container [2021-10-28 09:02:48,826 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:02:48,826 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:48" (2/3) ... [2021-10-28 09:02:48,827 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9b5c26d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:02:48, skipping insertion in model container [2021-10-28 09:02:48,827 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:02:48,827 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:02:48" (3/3) ... [2021-10-28 09:02:48,828 INFO L389 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_2.c [2021-10-28 09:02:48,895 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:02:48,905 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:02:48,905 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:02:48,905 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:02:48,905 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:02:48,905 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:02:48,905 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:02:48,906 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:02:48,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2021-10-28 09:02:48,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:02:48,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:02:48,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:02:48,998 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:02:48,998 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:02:48,998 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:02:48,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2021-10-28 09:02:49,000 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:02:49,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:02:49,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:02:49,001 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:02:49,002 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:02:49,009 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 9#L-1true havoc main_#res;havoc main_~x~0;main_~x~0 := 0; 6#L6-2true [2021-10-28 09:02:49,010 INFO L793 eck$LassoCheckResult]: Loop: 6#L6-2true assume !false;__VERIFIER_assert_#in~cond := (if 0 == main_~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 7#L6true assume !(0 == __VERIFIER_assert_~cond); 6#L6-2true [2021-10-28 09:02:49,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:49,032 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 09:02:49,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:49,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491247179] [2021-10-28 09:02:49,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:49,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:49,156 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:49,212 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:49,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:49,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2021-10-28 09:02:49,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:49,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999742717] [2021-10-28 09:02:49,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:49,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:49,244 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:49,261 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:49,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:49,276 INFO L85 PathProgramCache]: Analyzing trace with hash 925802, now seen corresponding path program 1 times [2021-10-28 09:02:49,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:49,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131487628] [2021-10-28 09:02:49,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:49,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:49,298 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:02:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:02:49,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:02:49,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:02:49 BoogieIcfgContainer [2021-10-28 09:02:49,926 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:02:49,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:02:49,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:02:49,927 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:02:49,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:02:48" (3/4) ... [2021-10-28 09:02:49,930 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:02:49,965 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:02:49,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:02:49,968 INFO L168 Benchmark]: Toolchain (without parser) took 1731.08 ms. Allocated memory is still 130.0 MB. Free memory was 96.0 MB in the beginning and 103.2 MB in the end (delta: -7.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:02:49,970 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 86.0 MB. Free memory was 42.7 MB in the beginning and 42.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:02:49,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.58 ms. Allocated memory is still 130.0 MB. Free memory was 95.8 MB in the beginning and 104.7 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:49,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.46 ms. Allocated memory is still 130.0 MB. Free memory was 104.7 MB in the beginning and 103.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:49,978 INFO L168 Benchmark]: Boogie Preprocessor took 18.74 ms. Allocated memory is still 130.0 MB. Free memory was 103.5 MB in the beginning and 102.6 MB in the end (delta: 933.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:02:49,978 INFO L168 Benchmark]: RCFGBuilder took 245.56 ms. Allocated memory is still 130.0 MB. Free memory was 102.6 MB in the beginning and 93.8 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:49,979 INFO L168 Benchmark]: BuchiAutomizer took 1107.53 ms. Allocated memory is still 130.0 MB. Free memory was 93.8 MB in the beginning and 104.5 MB in the end (delta: -10.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:49,980 INFO L168 Benchmark]: Witness Printer took 39.02 ms. Allocated memory is still 130.0 MB. Free memory was 104.5 MB in the beginning and 103.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:49,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 86.0 MB. Free memory was 42.7 MB in the beginning and 42.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 275.58 ms. Allocated memory is still 130.0 MB. Free memory was 95.8 MB in the beginning and 104.7 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.46 ms. Allocated memory is still 130.0 MB. Free memory was 104.7 MB in the beginning and 103.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.74 ms. Allocated memory is still 130.0 MB. Free memory was 103.5 MB in the beginning and 102.6 MB in the end (delta: 933.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 245.56 ms. Allocated memory is still 130.0 MB. Free memory was 102.6 MB in the beginning and 93.8 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1107.53 ms. Allocated memory is still 130.0 MB. Free memory was 93.8 MB in the beginning and 104.5 MB in the end (delta: -10.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 16.1 GB. * Witness Printer took 39.02 ms. Allocated memory is still 130.0 MB. Free memory was 104.5 MB in the beginning and 103.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. 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: No data available 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12744} State at position 1 is {cond=1, NULL=0, NULL=0, NULL=0, NULL=12747, NULL=0, \result=0, NULL=12746, NULL=12744, \old(cond)=1, NULL=0, x=0, NULL=12745} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 5]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x=0; Loop: [L14] COND TRUE 1 [L6] COND FALSE !(!(cond)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:02:50,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4eed8df-f361-42fa-98de-9974c7e8926f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...