./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/psyco/psyco_abp_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_abp_1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa --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 39adc6d5c92d5d4be7746cac0afbcc96f3b450588f18f3eb2d03a3ab1e20a3ef --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:28:16,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:28:16,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:28:16,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:28:16,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:28:16,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:28:16,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:28:16,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:28:16,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:28:16,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:28:16,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:28:16,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:28:16,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:28:16,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:28:16,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:28:16,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:28:16,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:28:16,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:28:16,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:28:16,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:28:16,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:28:16,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:28:16,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:28:16,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:28:16,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:28:16,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:28:16,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:28:16,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:28:16,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:28:16,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:28:16,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:28:16,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:28:16,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:28:16,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:28:16,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:28:16,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:28:16,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:28:16,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:28:16,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:28:16,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:28:16,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:28:16,954 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-06 19:28:16,972 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:28:16,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:28:16,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:28:16,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:28:16,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:28:16,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:28:16,974 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:28:16,974 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 19:28:16,974 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 19:28:16,974 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 19:28:16,975 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 19:28:16,975 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 19:28:16,975 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 19:28:16,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:28:16,975 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:28:16,975 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:28:16,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:28:16,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:28:16,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:28:16,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 19:28:16,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 19:28:16,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 19:28:16,976 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:28:16,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:28:16,976 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 19:28:16,977 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:28:16,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 19:28:16,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:28:16,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:28:16,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:28:16,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:28:16,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:28:16,978 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 19:28:16,979 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_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39adc6d5c92d5d4be7746cac0afbcc96f3b450588f18f3eb2d03a3ab1e20a3ef [2021-12-06 19:28:17,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:28:17,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:28:17,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:28:17,196 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:28:17,197 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:28:17,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/psyco/psyco_abp_1-1.c [2021-12-06 19:28:17,249 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/data/92c14fb9d/1649e3fe86c842049077bbe90ac91d4e/FLAGdc3552793 [2021-12-06 19:28:17,663 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:28:17,663 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/sv-benchmarks/c/psyco/psyco_abp_1-1.c [2021-12-06 19:28:17,672 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/data/92c14fb9d/1649e3fe86c842049077bbe90ac91d4e/FLAGdc3552793 [2021-12-06 19:28:17,681 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/data/92c14fb9d/1649e3fe86c842049077bbe90ac91d4e [2021-12-06 19:28:17,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:28:17,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:28:17,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:28:17,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:28:17,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:28:17,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:28:17" (1/1) ... [2021-12-06 19:28:17,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b38d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:17, skipping insertion in model container [2021-12-06 19:28:17,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:28:17" (1/1) ... [2021-12-06 19:28:17,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:28:17,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:28:17,927 WARN L230 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_064fdb4f-677a-4e2b-96b0-600f531af42f/sv-benchmarks/c/psyco/psyco_abp_1-1.c[24818,24831] [2021-12-06 19:28:17,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:28:17,941 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:28:18,000 WARN L230 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_064fdb4f-677a-4e2b-96b0-600f531af42f/sv-benchmarks/c/psyco/psyco_abp_1-1.c[24818,24831] [2021-12-06 19:28:18,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:28:18,015 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:28:18,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:18 WrapperNode [2021-12-06 19:28:18,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:28:18,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:28:18,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:28:18,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:28:18,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:18" (1/1) ... [2021-12-06 19:28:18,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:18" (1/1) ... [2021-12-06 19:28:18,065 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 377 [2021-12-06 19:28:18,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:28:18,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:28:18,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:28:18,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:28:18,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:18" (1/1) ... [2021-12-06 19:28:18,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:18" (1/1) ... [2021-12-06 19:28:18,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:18" (1/1) ... [2021-12-06 19:28:18,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:18" (1/1) ... [2021-12-06 19:28:18,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:18" (1/1) ... [2021-12-06 19:28:18,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:18" (1/1) ... [2021-12-06 19:28:18,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:18" (1/1) ... [2021-12-06 19:28:18,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:28:18,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:28:18,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:28:18,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:28:18,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:18" (1/1) ... [2021-12-06 19:28:18,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:28:18,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:18,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:18,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 19:28:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:28:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:28:18,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:28:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:28:18,232 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:28:18,233 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:28:18,664 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:28:18,671 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:28:18,671 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 19:28:18,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:28:18 BoogieIcfgContainer [2021-12-06 19:28:18,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:28:18,674 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 19:28:18,674 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 19:28:18,677 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 19:28:18,677 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:28:18,677 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 07:28:17" (1/3) ... [2021-12-06 19:28:18,678 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9e4e4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:28:18, skipping insertion in model container [2021-12-06 19:28:18,678 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:28:18,678 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:18" (2/3) ... [2021-12-06 19:28:18,678 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9e4e4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:28:18, skipping insertion in model container [2021-12-06 19:28:18,678 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:28:18,678 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:28:18" (3/3) ... [2021-12-06 19:28:18,679 INFO L388 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-1.c [2021-12-06 19:28:18,712 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 19:28:18,712 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 19:28:18,712 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 19:28:18,712 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 19:28:18,712 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 19:28:18,712 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 19:28:18,713 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 19:28:18,713 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 19:28:18,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.9444444444444444) internal successors, (210), 108 states have internal predecessors, (210), 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) [2021-12-06 19:28:18,749 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-12-06 19:28:18,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:28:18,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:28:18,755 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 19:28:18,755 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:28:18,755 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 19:28:18,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.9444444444444444) internal successors, (210), 108 states have internal predecessors, (210), 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) [2021-12-06 19:28:18,763 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-12-06 19:28:18,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:28:18,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:28:18,764 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 19:28:18,764 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:28:18,769 INFO L791 eck$LassoCheckResult]: Stem: 97#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(16, 2);call #Ultimate.allocInit(12, 3);~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 28#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~P5~0#1, main_~P6~0#1, main_~P7~0#1, main_~P8~0#1, main_~P9~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_expect~0#1, main_~this_buffer_empty~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_expect~0#1 := 0;main_~this_buffer_empty~0#1 := 0; 46#L26-2true [2021-12-06 19:28:18,770 INFO L793 eck$LassoCheckResult]: Loop: 46#L26-2true goto; 48#L563true assume !false;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~P4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~P5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~P6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;main_~P7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~P8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;main_~P9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 76#L40true assume !(main_~this_expect~0#1 > 16); 33#L40-2true assume !(0 == main_~q~0#1); 111#L65true assume !(1 == main_~q~0#1); 6#L165true assume !(2 == main_~q~0#1); 56#L265true assume !(3 == main_~q~0#1); 38#L365true assume !(4 == main_~q~0#1); 105#L465true assume !(5 == main_~q~0#1); 46#L26-2true [2021-12-06 19:28:18,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:18,775 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 19:28:18,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:18,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207186123] [2021-12-06 19:28:18,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:18,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:18,868 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:18,893 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:18,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:18,895 INFO L85 PathProgramCache]: Analyzing trace with hash 2073703402, now seen corresponding path program 1 times [2021-12-06 19:28:18,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:18,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918554108] [2021-12-06 19:28:18,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:18,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:18,904 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:18,915 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:18,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:18,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2006272616, now seen corresponding path program 1 times [2021-12-06 19:28:18,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:18,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679559435] [2021-12-06 19:28:18,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:18,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:28:18,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:18,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679559435] [2021-12-06 19:28:18,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679559435] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:18,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:18,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:28:18,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298993431] [2021-12-06 19:28:18,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:19,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:19,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:28:19,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:28:19,103 INFO L87 Difference]: Start difference. First operand has 109 states, 108 states have (on average 1.9444444444444444) internal successors, (210), 108 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-12-06 19:28:19,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:19,180 INFO L93 Difference]: Finished difference Result 113 states and 210 transitions. [2021-12-06 19:28:19,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:28:19,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 210 transitions. [2021-12-06 19:28:19,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2021-12-06 19:28:19,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 82 states and 125 transitions. [2021-12-06 19:28:19,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2021-12-06 19:28:19,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2021-12-06 19:28:19,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 125 transitions. [2021-12-06 19:28:19,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:28:19,193 INFO L681 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2021-12-06 19:28:19,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 125 transitions. [2021-12-06 19:28:19,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-12-06 19:28:19,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.524390243902439) internal successors, (125), 81 states have internal predecessors, (125), 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) [2021-12-06 19:28:19,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 125 transitions. [2021-12-06 19:28:19,216 INFO L704 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2021-12-06 19:28:19,216 INFO L587 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2021-12-06 19:28:19,216 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 19:28:19,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 125 transitions. [2021-12-06 19:28:19,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2021-12-06 19:28:19,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:28:19,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:28:19,218 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 19:28:19,218 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 19:28:19,218 INFO L791 eck$LassoCheckResult]: Stem: 301#ULTIMATE.startENTRY 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(16, 2);call #Ultimate.allocInit(12, 3);~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 288#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~P5~0#1, main_~P6~0#1, main_~P7~0#1, main_~P8~0#1, main_~P9~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_expect~0#1, main_~this_buffer_empty~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_expect~0#1 := 0;main_~this_buffer_empty~0#1 := 0; 289#L26-2 goto; 255#L563 [2021-12-06 19:28:19,218 INFO L793 eck$LassoCheckResult]: Loop: 255#L563 assume !false;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~P4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;main_~P5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;main_~P6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;main_~P7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~P8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;main_~P9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 277#L40 assume !(main_~this_expect~0#1 > 16); 278#L40-2 assume 0 == main_~q~0#1; 254#L46 assume !(0 != main_#t~nondet13#1);havoc main_#t~nondet13#1; 255#L563 [2021-12-06 19:28:19,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:19,219 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-12-06 19:28:19,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:19,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775401821] [2021-12-06 19:28:19,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:19,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:19,225 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:19,233 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:19,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:19,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1267254, now seen corresponding path program 1 times [2021-12-06 19:28:19,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:19,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226038649] [2021-12-06 19:28:19,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:19,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:19,238 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:19,242 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:19,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:19,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1805953496, now seen corresponding path program 1 times [2021-12-06 19:28:19,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:19,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758024430] [2021-12-06 19:28:19,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:19,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:19,250 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:28:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:28:19,259 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:28:19,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 07:28:19 BoogieIcfgContainer [2021-12-06 19:28:19,456 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 19:28:19,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:28:19,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:28:19,457 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:28:19,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:28:18" (3/4) ... [2021-12-06 19:28:19,460 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-06 19:28:19,492 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 19:28:19,492 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:28:19,492 INFO L158 Benchmark]: Toolchain (without parser) took 1808.36ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 48.7MB in the beginning and 88.1MB in the end (delta: -39.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:28:19,493 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:28:19,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.68ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 48.5MB in the beginning and 89.2MB in the end (delta: -40.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 19:28:19,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.03ms. Allocated memory is still 121.6MB. Free memory was 89.2MB in the beginning and 84.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 19:28:19,494 INFO L158 Benchmark]: Boogie Preprocessor took 38.29ms. Allocated memory is still 121.6MB. Free memory was 84.6MB in the beginning and 81.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 19:28:19,494 INFO L158 Benchmark]: RCFGBuilder took 569.12ms. Allocated memory is still 121.6MB. Free memory was 81.9MB in the beginning and 53.1MB in the end (delta: 28.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-06 19:28:19,494 INFO L158 Benchmark]: BuchiAutomizer took 782.23ms. Allocated memory is still 121.6MB. Free memory was 52.6MB in the beginning and 89.3MB in the end (delta: -36.8MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-12-06 19:28:19,495 INFO L158 Benchmark]: Witness Printer took 34.82ms. Allocated memory is still 121.6MB. Free memory was 89.3MB in the beginning and 88.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:28:19,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.68ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 48.5MB in the beginning and 89.2MB in the end (delta: -40.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.03ms. Allocated memory is still 121.6MB. Free memory was 89.2MB in the beginning and 84.6MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.29ms. Allocated memory is still 121.6MB. Free memory was 84.6MB in the beginning and 81.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 569.12ms. Allocated memory is still 121.6MB. Free memory was 81.9MB in the beginning and 53.1MB in the end (delta: 28.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 782.23ms. Allocated memory is still 121.6MB. Free memory was 52.6MB in the beginning and 89.3MB in the end (delta: -36.8MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Witness Printer took 34.82ms. Allocated memory is still 121.6MB. Free memory was 89.3MB in the beginning and 88.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 82 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 82 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 362 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 158 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 204 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 26]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, P5=11, m_Protocol=1, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a8d9fad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62b72c25=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@643c8429=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fb8492b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7820a067=0, P4=17, method_id=0, P3=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47ac78fe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ddcb306=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11f56a46=13, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@224ceca7=17, q=0, P2=13, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@776cdcaa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e0813db=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@204c1173=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22cc331e=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7293e9a7=0, m_recv_ack_1_2=7, P1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7204066=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@403dc479=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78e02119=0, m_msg_1_1=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@552e794e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3583939f=0, P9=18, m_recv_ack_2=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67917365=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56a94d2c=0, P8=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5610bd16=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a425bda=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aff257d=0, this_expect=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@213afb83=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a124f53=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16d163fd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d040d7d=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fb24e=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d79f30b=8, m_msg_2=2, this_buffer_empty=0, P7=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f2c68cb=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7504c3c5=0, m_msg_1_2=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33b0cca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6720d289=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@483e295=0, m_recv_ack_1_1=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2162b90d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13f42d50=0, P6=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69783910=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1639fc54=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e8584b9=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 26]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_Protocol = 1; [L8] int m_msg_2 = 2; [L9] int m_recv_ack_2 = 3; [L10] int m_msg_1_1 = 4; [L11] int m_msg_1_2 = 5; [L12] int m_recv_ack_1_1 = 6; [L13] int m_recv_ack_1_2 = 7; [L18] int q = 0; [L19] int method_id; [L22] int this_expect = 0; [L23] int this_buffer_empty = 0; Loop: [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) [L45] COND TRUE q == 0 [L46] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-06 19:28:19,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_064fdb4f-677a-4e2b-96b0-600f531af42f/bin/uautomizer-DrprNOufMa/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)