./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/psyco/psyco_io_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_io_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f9f01bde8fda2c75630f127009f2a9b60883250862a9d96b52c34a46b69c1e5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:55:37,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:55:37,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:55:37,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:55:37,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:55:37,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:55:37,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:55:37,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:55:37,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:55:37,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:55:37,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:55:37,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:55:37,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:55:37,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:55:37,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:55:37,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:55:37,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:55:37,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:55:37,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:55:37,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:55:37,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:55:37,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:55:37,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:55:37,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:55:37,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:55:37,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:55:37,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:55:37,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:55:37,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:55:37,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:55:37,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:55:37,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:55:37,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:55:37,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:55:37,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:55:37,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:55:37,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:55:37,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:55:37,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:55:37,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:55:37,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:55:37,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 11:55:37,646 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:55:37,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:55:37,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:55:37,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:55:37,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:55:37,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:55:37,650 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:55:37,650 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 11:55:37,651 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 11:55:37,651 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 11:55:37,653 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 11:55:37,653 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 11:55:37,654 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 11:55:37,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:55:37,654 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:55:37,655 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:55:37,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:55:37,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:55:37,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:55:37,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 11:55:37,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 11:55:37,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 11:55:37,657 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:55:37,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:55:37,658 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 11:55:37,658 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:55:37,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 11:55:37,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:55:37,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:55:37,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:55:37,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:55:37,662 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 11:55:37,663 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_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f9f01bde8fda2c75630f127009f2a9b60883250862a9d96b52c34a46b69c1e5 [2022-11-20 11:55:38,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:55:38,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:55:38,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:55:38,109 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:55:38,110 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:55:38,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/psyco/psyco_io_1.c [2022-11-20 11:55:41,510 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:55:41,894 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:55:41,895 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/sv-benchmarks/c/psyco/psyco_io_1.c [2022-11-20 11:55:41,906 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/data/5e2b7d143/cba3825382254660b9b42b43fdb304c4/FLAG8f9547a85 [2022-11-20 11:55:41,923 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/data/5e2b7d143/cba3825382254660b9b42b43fdb304c4 [2022-11-20 11:55:41,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:55:41,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:55:41,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:55:41,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:55:41,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:55:41,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:55:41" (1/1) ... [2022-11-20 11:55:41,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26b23c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:41, skipping insertion in model container [2022-11-20 11:55:41,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:55:41" (1/1) ... [2022-11-20 11:55:41,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:55:41,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:55:42,273 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_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/sv-benchmarks/c/psyco/psyco_io_1.c[11478,11491] [2022-11-20 11:55:42,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:55:42,295 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:55:42,354 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_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/sv-benchmarks/c/psyco/psyco_io_1.c[11478,11491] [2022-11-20 11:55:42,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:55:42,385 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:55:42,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42 WrapperNode [2022-11-20 11:55:42,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:55:42,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:55:42,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:55:42,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:55:42,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42" (1/1) ... [2022-11-20 11:55:42,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42" (1/1) ... [2022-11-20 11:55:42,435 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 236 [2022-11-20 11:55:42,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:55:42,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:55:42,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:55:42,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:55:42,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42" (1/1) ... [2022-11-20 11:55:42,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42" (1/1) ... [2022-11-20 11:55:42,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42" (1/1) ... [2022-11-20 11:55:42,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42" (1/1) ... [2022-11-20 11:55:42,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42" (1/1) ... [2022-11-20 11:55:42,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42" (1/1) ... [2022-11-20 11:55:42,470 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42" (1/1) ... [2022-11-20 11:55:42,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42" (1/1) ... [2022-11-20 11:55:42,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:55:42,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:55:42,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:55:42,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:55:42,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42" (1/1) ... [2022-11-20 11:55:42,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:55:42,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:55:42,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:55:42,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 11:55:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:55:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:55:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:55:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:55:42,735 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:55:42,738 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:55:43,122 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:55:43,130 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:55:43,130 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 11:55:43,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:55:43 BoogieIcfgContainer [2022-11-20 11:55:43,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:55:43,150 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 11:55:43,150 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 11:55:43,155 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 11:55:43,156 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:55:43,156 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:55:41" (1/3) ... [2022-11-20 11:55:43,158 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5288b6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:55:43, skipping insertion in model container [2022-11-20 11:55:43,158 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:55:43,158 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:42" (2/3) ... [2022-11-20 11:55:43,159 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5288b6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:55:43, skipping insertion in model container [2022-11-20 11:55:43,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:55:43,159 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:55:43" (3/3) ... [2022-11-20 11:55:43,161 INFO L332 chiAutomizerObserver]: Analyzing ICFG psyco_io_1.c [2022-11-20 11:55:43,263 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 11:55:43,263 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 11:55:43,264 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 11:55:43,264 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 11:55:43,264 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 11:55:43,264 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 11:55:43,264 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 11:55:43,265 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 11:55:43,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 67 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:43,305 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-11-20 11:55:43,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:55:43,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:55:43,314 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 11:55:43,314 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:55:43,314 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 11:55:43,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 67 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:43,320 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-11-20 11:55:43,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:55:43,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:55:43,322 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 11:55:43,322 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:55:43,332 INFO L748 eck$LassoCheckResult]: Stem: 44#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(13, 2);call #Ultimate.allocInit(12, 3);~m_flush~0 := 1;~m_PipedOutputStream~0 := 2;~m_close~0 := 3;~m_write~0 := 4;~m_connect_1~0 := 5;~m_connect_2~0 := 6; 36#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_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_sink~0#1, main_~this_sinkConnected~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_sink~0#1 := 0;main_~this_sinkConnected~0#1 := 0; 11#L25-2true [2022-11-20 11:55:43,332 INFO L750 eck$LassoCheckResult]: Loop: 11#L25-2true goto; 9#L337true 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; 41#L35true assume !(0 == main_~q~0#1); 55#L55true assume !(1 == main_~q~0#1); 52#L107true assume !(2 == main_~q~0#1); 66#L223true assume !(3 == main_~q~0#1); 11#L25-2true [2022-11-20 11:55:43,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:43,346 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 11:55:43,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:43,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351484890] [2022-11-20 11:55:43,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:43,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:55:43,471 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:55:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:55:43,507 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:55:43,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:43,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1070475851, now seen corresponding path program 1 times [2022-11-20 11:55:43,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:43,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947291750] [2022-11-20 11:55:43,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:43,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:55:43,522 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:55:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:55:43,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:55:43,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:43,548 INFO L85 PathProgramCache]: Analyzing trace with hash 150525069, now seen corresponding path program 1 times [2022-11-20 11:55:43,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:43,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793412106] [2022-11-20 11:55:43,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:43,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:43,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:55:43,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:55:43,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793412106] [2022-11-20 11:55:43,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793412106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:43,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:43,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:43,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182251672] [2022-11-20 11:55:43,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:43,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:55:43,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:55:43,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:55:43,836 INFO L87 Difference]: Start difference. First operand has 67 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 states have internal predecessors, (126), 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 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:43,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:43,901 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2022-11-20 11:55:43,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 102 transitions. [2022-11-20 11:55:43,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-11-20 11:55:43,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 77 transitions. [2022-11-20 11:55:43,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-11-20 11:55:43,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2022-11-20 11:55:43,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 77 transitions. [2022-11-20 11:55:43,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:55:43,914 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 77 transitions. [2022-11-20 11:55:43,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 77 transitions. [2022-11-20 11:55:43,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-20 11:55:43,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 51 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:55:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2022-11-20 11:55:43,957 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 77 transitions. [2022-11-20 11:55:43,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:55:43,970 INFO L428 stractBuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2022-11-20 11:55:43,970 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 11:55:43,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 77 transitions. [2022-11-20 11:55:43,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-11-20 11:55:43,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:55:43,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:55:43,979 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 11:55:43,979 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 11:55:43,980 INFO L748 eck$LassoCheckResult]: Stem: 187#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(13, 2);call #Ultimate.allocInit(12, 3);~m_flush~0 := 1;~m_PipedOutputStream~0 := 2;~m_close~0 := 3;~m_write~0 := 4;~m_connect_1~0 := 5;~m_connect_2~0 := 6; 182#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_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_sink~0#1, main_~this_sinkConnected~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_sink~0#1 := 0;main_~this_sinkConnected~0#1 := 0; 154#L25-2 goto; 152#L337 [2022-11-20 11:55:43,980 INFO L750 eck$LassoCheckResult]: Loop: 152#L337 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; 153#L35 assume 0 == main_~q~0#1; 186#L36 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1; 152#L337 [2022-11-20 11:55:43,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:43,981 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2022-11-20 11:55:43,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:43,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568976821] [2022-11-20 11:55:43,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:43,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:55:44,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:55:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:55:44,033 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:55:44,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:44,034 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2022-11-20 11:55:44,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:44,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561080489] [2022-11-20 11:55:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:44,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:55:44,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:55:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:55:44,051 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:55:44,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:44,052 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2022-11-20 11:55:44,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:55:44,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139799020] [2022-11-20 11:55:44,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:44,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:55:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:55:44,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:55:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:55:44,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:55:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:55:44,624 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:55:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:55:44,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:55:44 BoogieIcfgContainer [2022-11-20 11:55:44,693 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 11:55:44,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:55:44,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:55:44,695 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:55:44,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:55:43" (3/4) ... [2022-11-20 11:55:44,698 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 11:55:44,763 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:55:44,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:55:44,772 INFO L158 Benchmark]: Toolchain (without parser) took 2844.21ms. Allocated memory is still 184.5MB. Free memory was 151.0MB in the beginning and 139.8MB in the end (delta: 11.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-11-20 11:55:44,775 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:55:44,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.76ms. Allocated memory is still 184.5MB. Free memory was 151.0MB in the beginning and 137.6MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:55:44,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.05ms. Allocated memory is still 184.5MB. Free memory was 137.6MB in the beginning and 136.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:55:44,777 INFO L158 Benchmark]: Boogie Preprocessor took 52.40ms. Allocated memory is still 184.5MB. Free memory was 136.3MB in the beginning and 134.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:55:44,778 INFO L158 Benchmark]: RCFGBuilder took 659.12ms. Allocated memory is still 184.5MB. Free memory was 134.7MB in the beginning and 118.0MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 11:55:44,779 INFO L158 Benchmark]: BuchiAutomizer took 1543.79ms. Allocated memory is still 184.5MB. Free memory was 118.0MB in the beginning and 141.8MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:55:44,783 INFO L158 Benchmark]: Witness Printer took 77.38ms. Allocated memory is still 184.5MB. Free memory was 141.8MB in the beginning and 139.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:55:44,786 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.76ms. Allocated memory is still 184.5MB. Free memory was 151.0MB in the beginning and 137.6MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.05ms. Allocated memory is still 184.5MB. Free memory was 137.6MB in the beginning and 136.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.40ms. Allocated memory is still 184.5MB. Free memory was 136.3MB in the beginning and 134.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 659.12ms. Allocated memory is still 184.5MB. Free memory was 134.7MB in the beginning and 118.0MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1543.79ms. Allocated memory is still 184.5MB. Free memory was 118.0MB in the beginning and 141.8MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 77.38ms. Allocated memory is still 184.5MB. Free memory was 141.8MB in the beginning and 139.8MB in the end (delta: 1.9MB). 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 52 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, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 171 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 98 mSDtfsCounter, 22 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: 25]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L7] int m_flush = 1; [L8] int m_PipedOutputStream = 2; [L9] int m_close = 3; [L10] int m_write = 4; [L11] int m_connect_1 = 5; [L12] int m_connect_2 = 6; VAL [m_close=3, m_connect_1=5, m_connect_2=6, m_flush=1, m_PipedOutputStream=2, m_write=4] [L17] int q = 0; [L18] int method_id; [L21] int this_sink = 0; [L22] int this_sinkConnected = 0; VAL [m_close=3, m_connect_1=5, m_connect_2=6, m_flush=1, m_PipedOutputStream=2, m_write=4, q=0, this_sink=0, this_sinkConnected=0] Loop: [L25] COND TRUE 1 [L28] int P1=__VERIFIER_nondet_int(); [L29] int P2=__VERIFIER_nondet_int(); [L30] int P3=__VERIFIER_nondet_int(); [L31] int P4=__VERIFIER_nondet_int(); [L35] COND TRUE q == 0 [L36] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 25]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_flush = 1; [L8] int m_PipedOutputStream = 2; [L9] int m_close = 3; [L10] int m_write = 4; [L11] int m_connect_1 = 5; [L12] int m_connect_2 = 6; VAL [m_close=3, m_connect_1=5, m_connect_2=6, m_flush=1, m_PipedOutputStream=2, m_write=4] [L17] int q = 0; [L18] int method_id; [L21] int this_sink = 0; [L22] int this_sinkConnected = 0; VAL [m_close=3, m_connect_1=5, m_connect_2=6, m_flush=1, m_PipedOutputStream=2, m_write=4, q=0, this_sink=0, this_sinkConnected=0] Loop: [L25] COND TRUE 1 [L28] int P1=__VERIFIER_nondet_int(); [L29] int P2=__VERIFIER_nondet_int(); [L30] int P3=__VERIFIER_nondet_int(); [L31] int P4=__VERIFIER_nondet_int(); [L35] COND TRUE q == 0 [L36] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 11:55:44,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3fe8f5a-a231-4432-85d0-aae496c7b4b7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)