./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/psyco/psyco_abp_1-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_abp_1-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 041b6fdf6940cdc60d0f8513696cf56c45d5af72c3bd8ce1d60d3ac14fc6f3dc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:16:14,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:16:14,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:16:14,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:16:14,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:16:14,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:16:14,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:16:14,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:16:14,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:16:14,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:16:14,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:16:14,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:16:14,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:16:14,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:16:14,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:16:14,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:16:14,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:16:14,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:16:14,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:16:14,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:16:14,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:16:14,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:16:14,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:16:14,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:16:14,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:16:14,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:16:14,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:16:14,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:16:14,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:16:14,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:16:14,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:16:14,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:16:14,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:16:14,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:16:14,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:16:14,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:16:14,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:16:14,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:16:14,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:16:14,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:16:14,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:16:14,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 12:16:14,973 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:16:14,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:16:14,975 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:16:14,975 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:16:14,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:16:14,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:16:14,978 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:16:14,978 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 12:16:14,978 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 12:16:14,979 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 12:16:14,980 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 12:16:14,980 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 12:16:14,981 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 12:16:14,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:16:14,981 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:16:14,982 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:16:14,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:16:14,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:16:14,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:16:14,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 12:16:14,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 12:16:14,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 12:16:14,984 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:16:14,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:16:14,986 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 12:16:14,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:16:14,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 12:16:14,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:16:14,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:16:14,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:16:14,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:16:14,990 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 12:16:14,990 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_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 041b6fdf6940cdc60d0f8513696cf56c45d5af72c3bd8ce1d60d3ac14fc6f3dc [2022-11-16 12:16:15,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:16:15,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:16:15,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:16:15,432 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:16:15,433 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:16:15,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/psyco/psyco_abp_1-3.c [2022-11-16 12:16:15,514 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/data/57607ddec/b089d688e9674d9a8ba3a988021fae64/FLAG18c6a0b50 [2022-11-16 12:16:16,214 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:16:16,227 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/sv-benchmarks/c/psyco/psyco_abp_1-3.c [2022-11-16 12:16:16,241 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/data/57607ddec/b089d688e9674d9a8ba3a988021fae64/FLAG18c6a0b50 [2022-11-16 12:16:16,494 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/data/57607ddec/b089d688e9674d9a8ba3a988021fae64 [2022-11-16 12:16:16,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:16:16,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:16:16,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:16:16,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:16:16,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:16:16,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:16:16" (1/1) ... [2022-11-16 12:16:16,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b27b0f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:16, skipping insertion in model container [2022-11-16 12:16:16,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:16:16" (1/1) ... [2022-11-16 12:16:16,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:16:16,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:16:17,017 WARN L229 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_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/sv-benchmarks/c/psyco/psyco_abp_1-3.c[24720,24733] [2022-11-16 12:16:17,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:16:17,035 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:16:17,196 WARN L229 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_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/sv-benchmarks/c/psyco/psyco_abp_1-3.c[24720,24733] [2022-11-16 12:16:17,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:16:17,236 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:16:17,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17 WrapperNode [2022-11-16 12:16:17,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:16:17,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:16:17,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:16:17,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:16:17,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17" (1/1) ... [2022-11-16 12:16:17,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17" (1/1) ... [2022-11-16 12:16:17,376 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 375 [2022-11-16 12:16:17,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:16:17,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:16:17,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:16:17,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:16:17,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17" (1/1) ... [2022-11-16 12:16:17,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17" (1/1) ... [2022-11-16 12:16:17,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17" (1/1) ... [2022-11-16 12:16:17,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17" (1/1) ... [2022-11-16 12:16:17,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17" (1/1) ... [2022-11-16 12:16:17,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17" (1/1) ... [2022-11-16 12:16:17,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17" (1/1) ... [2022-11-16 12:16:17,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17" (1/1) ... [2022-11-16 12:16:17,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:16:17,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:16:17,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:16:17,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:16:17,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17" (1/1) ... [2022-11-16 12:16:17,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:16:17,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:16:17,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:16:17,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 12:16:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:16:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:16:17,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:16:17,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:16:17,744 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:16:17,747 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:16:18,620 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:16:18,629 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:16:18,629 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:16:18,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:16:18 BoogieIcfgContainer [2022-11-16 12:16:18,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:16:18,634 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 12:16:18,634 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 12:16:18,646 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 12:16:18,647 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:16:18,647 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:16:16" (1/3) ... [2022-11-16 12:16:18,649 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43620a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:16:18, skipping insertion in model container [2022-11-16 12:16:18,649 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:16:18,650 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:16:17" (2/3) ... [2022-11-16 12:16:18,650 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43620a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:16:18, skipping insertion in model container [2022-11-16 12:16:18,650 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:16:18,651 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:16:18" (3/3) ... [2022-11-16 12:16:18,652 INFO L332 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-3.c [2022-11-16 12:16:18,732 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 12:16:18,732 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 12:16:18,732 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 12:16:18,732 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 12:16:18,732 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 12:16:18,732 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 12:16:18,733 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 12:16:18,733 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 12:16:18,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.9439252336448598) internal successors, (208), 107 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:16:18,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2022-11-16 12:16:18,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:16:18,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:16:18,788 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 12:16:18,788 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:16:18,789 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 12:16:18,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.9439252336448598) internal successors, (208), 107 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:16:18,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2022-11-16 12:16:18,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:16:18,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:16:18,807 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 12:16:18,808 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:16:18,821 INFO L748 eck$LassoCheckResult]: Stem: 93#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_recv_ack_1_2~0 := 7;~m_recv_ack_1_1~0 := 6;~m_msg_1_2~0 := 5;~m_msg_2~0 := 2;~m_msg_1_1~0 := 4;~m_recv_ack_2~0 := 3; 31#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; 45#L26-2true [2022-11-16 12:16:18,822 INFO L750 eck$LassoCheckResult]: Loop: 45#L26-2true goto; 33#L559true 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; 20#L41true assume !(0 == main_~q~0#1); 53#L61true assume !(1 == main_~q~0#1); 12#L161true assume !(2 == main_~q~0#1); 109#L261true assume !(3 == main_~q~0#1); 57#L361true assume !(4 == main_~q~0#1); 4#L461true assume !(5 == main_~q~0#1); 45#L26-2true [2022-11-16 12:16:18,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:18,828 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 12:16:18,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:18,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296953698] [2022-11-16 12:16:18,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:18,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:16:18,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:16:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:16:18,976 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:16:18,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:18,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2021581594, now seen corresponding path program 1 times [2022-11-16 12:16:18,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:18,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205777806] [2022-11-16 12:16:18,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:18,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:16:18,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:16:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:16:19,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:16:19,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1331020120, now seen corresponding path program 1 times [2022-11-16 12:16:19,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:19,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014460136] [2022-11-16 12:16:19,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:19,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:19,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:16:19,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:16:19,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014460136] [2022-11-16 12:16:19,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014460136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:16:19,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:16:19,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:16:19,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562311133] [2022-11-16 12:16:19,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:16:19,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:16:19,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:16:19,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:16:19,405 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.9439252336448598) internal successors, (208), 107 states have internal predecessors, (208), 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 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:16:19,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:16:19,549 INFO L93 Difference]: Finished difference Result 111 states and 201 transitions. [2022-11-16 12:16:19,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 201 transitions. [2022-11-16 12:16:19,556 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2022-11-16 12:16:19,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 80 states and 121 transitions. [2022-11-16 12:16:19,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2022-11-16 12:16:19,563 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 80 [2022-11-16 12:16:19,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 121 transitions. [2022-11-16 12:16:19,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:16:19,564 INFO L218 hiAutomatonCegarLoop]: Abstraction has 80 states and 121 transitions. [2022-11-16 12:16:19,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 121 transitions. [2022-11-16 12:16:19,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-11-16 12:16:19,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.5125) internal successors, (121), 79 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:16:19,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 121 transitions. [2022-11-16 12:16:19,603 INFO L240 hiAutomatonCegarLoop]: Abstraction has 80 states and 121 transitions. [2022-11-16 12:16:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:16:19,609 INFO L428 stractBuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2022-11-16 12:16:19,609 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 12:16:19,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 121 transitions. [2022-11-16 12:16:19,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2022-11-16 12:16:19,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:16:19,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:16:19,612 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-16 12:16:19,612 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 12:16:19,612 INFO L748 eck$LassoCheckResult]: Stem: 304#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_recv_ack_1_2~0 := 7;~m_recv_ack_1_1~0 := 6;~m_msg_1_2~0 := 5;~m_msg_2~0 := 2;~m_msg_1_1~0 := 4;~m_recv_ack_2~0 := 3; 296#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; 297#L26-2 goto; 302#L559 [2022-11-16 12:16:19,612 INFO L750 eck$LassoCheckResult]: Loop: 302#L559 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; 279#L41 assume 0 == main_~q~0#1; 280#L42 assume !(0 != main_#t~nondet13#1);havoc main_#t~nondet13#1; 302#L559 [2022-11-16 12:16:19,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:19,613 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2022-11-16 12:16:19,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:19,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365074608] [2022-11-16 12:16:19,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:19,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:16:19,624 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:16:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:16:19,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:16:19,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:19,637 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2022-11-16 12:16:19,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:19,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452157353] [2022-11-16 12:16:19,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:19,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:16:19,644 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:16:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:16:19,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:16:19,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:19,652 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2022-11-16 12:16:19,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:19,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995610102] [2022-11-16 12:16:19,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:19,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:16:19,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:16:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:16:19,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:16:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:16:20,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:16:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:16:20,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:16:20 BoogieIcfgContainer [2022-11-16 12:16:20,221 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 12:16:20,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:16:20,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:16:20,223 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:16:20,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:16:18" (3/4) ... [2022-11-16 12:16:20,226 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-16 12:16:20,280 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:16:20,281 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:16:20,282 INFO L158 Benchmark]: Toolchain (without parser) took 3780.85ms. Allocated memory was 88.1MB in the beginning and 123.7MB in the end (delta: 35.7MB). Free memory was 50.4MB in the beginning and 74.9MB in the end (delta: -24.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2022-11-16 12:16:20,282 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 88.1MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:16:20,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 732.13ms. Allocated memory was 88.1MB in the beginning and 123.7MB in the end (delta: 35.7MB). Free memory was 50.1MB in the beginning and 91.6MB in the end (delta: -41.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 12:16:20,284 INFO L158 Benchmark]: Boogie Procedure Inliner took 138.76ms. Allocated memory is still 123.7MB. Free memory was 91.6MB in the beginning and 87.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:16:20,284 INFO L158 Benchmark]: Boogie Preprocessor took 113.85ms. Allocated memory is still 123.7MB. Free memory was 87.0MB in the beginning and 84.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:16:20,285 INFO L158 Benchmark]: RCFGBuilder took 1139.95ms. Allocated memory is still 123.7MB. Free memory was 84.0MB in the beginning and 98.2MB in the end (delta: -14.2MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2022-11-16 12:16:20,286 INFO L158 Benchmark]: BuchiAutomizer took 1587.40ms. Allocated memory is still 123.7MB. Free memory was 98.2MB in the beginning and 77.3MB in the end (delta: 20.9MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-11-16 12:16:20,286 INFO L158 Benchmark]: Witness Printer took 58.83ms. Allocated memory is still 123.7MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:16:20,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 88.1MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 732.13ms. Allocated memory was 88.1MB in the beginning and 123.7MB in the end (delta: 35.7MB). Free memory was 50.1MB in the beginning and 91.6MB in the end (delta: -41.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 138.76ms. Allocated memory is still 123.7MB. Free memory was 91.6MB in the beginning and 87.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 113.85ms. Allocated memory is still 123.7MB. Free memory was 87.0MB in the beginning and 84.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1139.95ms. Allocated memory is still 123.7MB. Free memory was 84.0MB in the beginning and 98.2MB in the end (delta: -14.2MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 1587.40ms. Allocated memory is still 123.7MB. Free memory was 98.2MB in the beginning and 77.3MB in the end (delta: 20.9MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Witness Printer took 58.83ms. Allocated memory is still 123.7MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program 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 80 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 348 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 151 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 197 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 26]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L7] int m_Protocol = 1; [L13] int m_recv_ack_1_2 = 7; [L12] int m_recv_ack_1_1 = 6; [L11] int m_msg_1_2 = 5; [L8] int m_msg_2 = 2; [L10] int m_msg_1_1 = 4; [L9] int m_recv_ack_2 = 3; VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3] [L18] int q = 0; [L19] int method_id; [L22] unsigned int this_expect = 0; [L23] unsigned int this_buffer_empty = 0; VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, q=0, this_buffer_empty=0, this_expect=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(); [L41] COND TRUE q == 0 [L42] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. - 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; [L13] int m_recv_ack_1_2 = 7; [L12] int m_recv_ack_1_1 = 6; [L11] int m_msg_1_2 = 5; [L8] int m_msg_2 = 2; [L10] int m_msg_1_1 = 4; [L9] int m_recv_ack_2 = 3; VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3] [L18] int q = 0; [L19] int method_id; [L22] unsigned int this_expect = 0; [L23] unsigned int this_buffer_empty = 0; VAL [m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_Protocol=1, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, q=0, this_buffer_empty=0, this_expect=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(); [L41] COND TRUE q == 0 [L42] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-16 12:16:20,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afdcdb8b-6f37-4f63-8e9f-4da1f66b3896/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)