./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 b5237d83 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_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_abp_1-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a --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-b5237d8 [2022-11-21 17:17:37,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:17:37,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:17:37,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:17:37,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:17:37,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:17:37,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:17:37,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:17:37,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:17:37,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:17:37,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:17:37,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:17:37,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:17:37,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:17:37,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:17:37,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:17:37,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:17:37,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:17:37,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:17:37,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:17:37,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:17:37,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:17:37,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:17:37,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:17:37,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:17:37,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:17:37,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:17:37,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:17:37,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:17:37,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:17:37,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:17:37,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:17:37,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:17:37,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:17:37,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:17:37,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:17:37,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:17:37,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:17:37,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:17:37,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:17:37,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:17:37,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-21 17:17:37,641 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:17:37,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:17:37,642 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:17:37,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:17:37,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:17:37,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:17:37,660 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:17:37,661 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 17:17:37,661 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 17:17:37,661 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 17:17:37,663 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 17:17:37,664 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 17:17:37,664 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 17:17:37,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:17:37,665 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:17:37,665 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:17:37,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:17:37,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:17:37,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:17:37,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 17:17:37,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 17:17:37,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 17:17:37,666 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:17:37,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:17:37,667 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 17:17:37,668 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:17:37,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 17:17:37,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:17:37,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:17:37,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:17:37,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:17:37,671 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 17:17:37,671 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_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 041b6fdf6940cdc60d0f8513696cf56c45d5af72c3bd8ce1d60d3ac14fc6f3dc [2022-11-21 17:17:37,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:17:37,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:17:37,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:17:37,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:17:37,984 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:17:37,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/psyco/psyco_abp_1-3.c [2022-11-21 17:17:41,024 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:17:41,280 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:17:41,280 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/sv-benchmarks/c/psyco/psyco_abp_1-3.c [2022-11-21 17:17:41,294 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/data/1ea44070a/517ab48324db4ed39e29527b0d30c038/FLAG2bb812082 [2022-11-21 17:17:41,308 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/data/1ea44070a/517ab48324db4ed39e29527b0d30c038 [2022-11-21 17:17:41,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:17:41,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:17:41,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:17:41,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:17:41,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:17:41,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aa4b603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41, skipping insertion in model container [2022-11-21 17:17:41,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:17:41,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:17:41,617 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/sv-benchmarks/c/psyco/psyco_abp_1-3.c[24720,24733] [2022-11-21 17:17:41,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:17:41,634 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:17:41,724 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/sv-benchmarks/c/psyco/psyco_abp_1-3.c[24720,24733] [2022-11-21 17:17:41,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:17:41,746 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:17:41,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41 WrapperNode [2022-11-21 17:17:41,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:17:41,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:17:41,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:17:41,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:17:41,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,828 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 375 [2022-11-21 17:17:41,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:17:41,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:17:41,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:17:41,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:17:41,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,891 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:17:41,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:17:41,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:17:41,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:17:41,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41" (1/1) ... [2022-11-21 17:17:41,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 17:17:41,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:41,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:41,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 17:17:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:17:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:17:42,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:17:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:17:42,109 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:17:42,111 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:17:43,144 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:17:43,155 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:17:43,157 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 17:17:43,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:17:43 BoogieIcfgContainer [2022-11-21 17:17:43,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:17:43,162 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 17:17:43,162 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 17:17:43,166 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 17:17:43,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:17:43,167 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 05:17:41" (1/3) ... [2022-11-21 17:17:43,169 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52c01ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 05:17:43, skipping insertion in model container [2022-11-21 17:17:43,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:17:43,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:41" (2/3) ... [2022-11-21 17:17:43,171 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52c01ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 05:17:43, skipping insertion in model container [2022-11-21 17:17:43,171 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 17:17:43,171 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:17:43" (3/3) ... [2022-11-21 17:17:43,176 INFO L332 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-3.c [2022-11-21 17:17:43,252 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 17:17:43,252 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 17:17:43,253 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 17:17:43,253 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 17:17:43,253 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 17:17:43,253 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 17:17:43,253 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 17:17:43,253 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 17:17:43,257 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) [2022-11-21 17:17:43,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2022-11-21 17:17:43,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:17:43,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:17:43,284 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 17:17:43,284 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:17:43,284 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 17:17:43,285 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) [2022-11-21 17:17:43,291 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2022-11-21 17:17:43,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:17:43,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:17:43,292 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 17:17:43,292 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:17:43,300 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_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; 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 [2022-11-21 17:17:43,301 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 [2022-11-21 17:17:43,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:43,307 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-21 17:17:43,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:43,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522375136] [2022-11-21 17:17:43,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:43,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:43,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:17:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:43,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:17:43,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:43,434 INFO L85 PathProgramCache]: Analyzing trace with hash -2021581594, now seen corresponding path program 1 times [2022-11-21 17:17:43,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:43,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775275591] [2022-11-21 17:17:43,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:43,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:43,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:17:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:43,450 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:17:43,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:43,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1331020120, now seen corresponding path program 1 times [2022-11-21 17:17:43,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:43,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19574638] [2022-11-21 17:17:43,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:43,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:43,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:17:43,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:17:43,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19574638] [2022-11-21 17:17:43,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19574638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:17:43,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:17:43,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:17:43,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900625419] [2022-11-21 17:17:43,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:17:43,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:17:43,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:17:43,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:17:43,793 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) [2022-11-21 17:17:43,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:17:43,930 INFO L93 Difference]: Finished difference Result 111 states and 201 transitions. [2022-11-21 17:17:43,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 201 transitions. [2022-11-21 17:17:43,935 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2022-11-21 17:17:43,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 80 states and 121 transitions. [2022-11-21 17:17:43,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2022-11-21 17:17:43,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 80 [2022-11-21 17:17:43,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 121 transitions. [2022-11-21 17:17:43,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:17:43,942 INFO L218 hiAutomatonCegarLoop]: Abstraction has 80 states and 121 transitions. [2022-11-21 17:17:43,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 121 transitions. [2022-11-21 17:17:43,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-11-21 17:17:43,973 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) [2022-11-21 17:17:43,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 121 transitions. [2022-11-21 17:17:43,975 INFO L240 hiAutomatonCegarLoop]: Abstraction has 80 states and 121 transitions. [2022-11-21 17:17:43,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:17:43,980 INFO L428 stractBuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2022-11-21 17:17:43,980 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 17:17:43,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 121 transitions. [2022-11-21 17:17:43,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2022-11-21 17:17:43,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 17:17:43,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 17:17:43,982 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-21 17:17:43,982 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 17:17:43,983 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_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; 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 [2022-11-21 17:17:43,983 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 [2022-11-21 17:17:43,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:43,984 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2022-11-21 17:17:43,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:43,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617003459] [2022-11-21 17:17:43,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:43,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:43,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:17:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:44,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:17:44,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:44,003 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2022-11-21 17:17:44,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:44,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667534267] [2022-11-21 17:17:44,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:44,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:44,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:17:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:44,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:17:44,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:44,015 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2022-11-21 17:17:44,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:44,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764369588] [2022-11-21 17:17:44,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:44,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:44,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:17:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:44,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:17:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:44,402 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:17:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:17:44,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 05:17:44 BoogieIcfgContainer [2022-11-21 17:17:44,470 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 17:17:44,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:17:44,471 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:17:44,472 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:17:44,472 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:17:43" (3/4) ... [2022-11-21 17:17:44,475 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-21 17:17:44,532 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:17:44,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:17:44,533 INFO L158 Benchmark]: Toolchain (without parser) took 3220.70ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 115.1MB in the beginning and 159.0MB in the end (delta: -43.9MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-11-21 17:17:44,534 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 157.3MB. Free memory was 126.2MB in the beginning and 126.1MB in the end (delta: 85.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:17:44,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.52ms. Allocated memory is still 157.3MB. Free memory was 114.8MB in the beginning and 95.2MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-21 17:17:44,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.10ms. Allocated memory is still 157.3MB. Free memory was 95.2MB in the beginning and 90.6MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 17:17:44,538 INFO L158 Benchmark]: Boogie Preprocessor took 85.03ms. Allocated memory is still 157.3MB. Free memory was 90.6MB in the beginning and 87.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:17:44,539 INFO L158 Benchmark]: RCFGBuilder took 1245.64ms. Allocated memory is still 157.3MB. Free memory was 87.5MB in the beginning and 113.6MB in the end (delta: -26.1MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2022-11-21 17:17:44,539 INFO L158 Benchmark]: BuchiAutomizer took 1308.24ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 113.6MB in the beginning and 161.1MB in the end (delta: -47.5MB). Peak memory consumption was 22.8kB. Max. memory is 16.1GB. [2022-11-21 17:17:44,539 INFO L158 Benchmark]: Witness Printer took 61.64ms. Allocated memory is still 205.5MB. Free memory was 161.1MB in the beginning and 159.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:17:44,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 157.3MB. Free memory was 126.2MB in the beginning and 126.1MB in the end (delta: 85.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.52ms. Allocated memory is still 157.3MB. Free memory was 114.8MB in the beginning and 95.2MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.10ms. Allocated memory is still 157.3MB. Free memory was 95.2MB in the beginning and 90.6MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.03ms. Allocated memory is still 157.3MB. Free memory was 90.6MB in the beginning and 87.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1245.64ms. Allocated memory is still 157.3MB. Free memory was 87.5MB in the beginning and 113.6MB in the end (delta: -26.1MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 1308.24ms. Allocated memory was 157.3MB in the beginning and 205.5MB in the end (delta: 48.2MB). Free memory was 113.6MB in the beginning and 161.1MB in the end (delta: -47.5MB). Peak memory consumption was 22.8kB. Max. memory is 16.1GB. * Witness Printer took 61.64ms. Allocated memory is still 205.5MB. Free memory was 161.1MB in the beginning and 159.0MB 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 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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; [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; 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; [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; 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! [2022-11-21 17:17:44,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c79702-2625-4c12-9fac-42088ba771e8/bin/uautomizer-vX5HgA9Q3a/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)