./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 2329fc70 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_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_io_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8 --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-2329fc7 [2022-12-13 12:32:10,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:32:10,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:32:10,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:32:10,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:32:10,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:32:10,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:32:10,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:32:10,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:32:10,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:32:10,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:32:10,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:32:10,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:32:10,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:32:10,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:32:10,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:32:10,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:32:10,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:32:10,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:32:10,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:32:10,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:32:10,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:32:10,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:32:10,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:32:10,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:32:10,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:32:10,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:32:10,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:32:10,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:32:10,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:32:10,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:32:10,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:32:10,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:32:10,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:32:10,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:32:10,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:32:10,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:32:10,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:32:10,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:32:10,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:32:10,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:32:10,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 12:32:10,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:32:10,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:32:10,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:32:10,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:32:10,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:32:10,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:32:10,470 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:32:10,470 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 12:32:10,470 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 12:32:10,470 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 12:32:10,470 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 12:32:10,470 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 12:32:10,471 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 12:32:10,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:32:10,471 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:32:10,471 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:32:10,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:32:10,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:32:10,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:32:10,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 12:32:10,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 12:32:10,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 12:32:10,472 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:32:10,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:32:10,472 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 12:32:10,473 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:32:10,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 12:32:10,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:32:10,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:32:10,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:32:10,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:32:10,474 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 12:32:10,474 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_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f9f01bde8fda2c75630f127009f2a9b60883250862a9d96b52c34a46b69c1e5 [2022-12-13 12:32:10,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:32:10,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:32:10,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:32:10,699 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:32:10,700 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:32:10,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/psyco/psyco_io_1.c [2022-12-13 12:32:13,254 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:32:13,404 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:32:13,404 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/sv-benchmarks/c/psyco/psyco_io_1.c [2022-12-13 12:32:13,410 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/data/bf5383fb8/033eb2b15ae14152af684683b7ddd5f6/FLAGaa7fb29a1 [2022-12-13 12:32:13,811 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/data/bf5383fb8/033eb2b15ae14152af684683b7ddd5f6 [2022-12-13 12:32:13,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:32:13,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:32:13,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:32:13,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:32:13,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:32:13,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:13,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222cf1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13, skipping insertion in model container [2022-12-13 12:32:13,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:13,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:32:13,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:32:13,952 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_9496dd79-7548-442e-9443-6dc456c5f4e1/sv-benchmarks/c/psyco/psyco_io_1.c[11478,11491] [2022-12-13 12:32:13,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:32:13,962 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:32:13,983 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_9496dd79-7548-442e-9443-6dc456c5f4e1/sv-benchmarks/c/psyco/psyco_io_1.c[11478,11491] [2022-12-13 12:32:13,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:32:13,993 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:32:13,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13 WrapperNode [2022-12-13 12:32:13,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:32:13,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:32:13,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:32:13,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:32:14,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:14,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:14,020 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 236 [2022-12-13 12:32:14,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:32:14,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:32:14,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:32:14,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:32:14,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:14,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:14,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:14,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:14,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:14,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:14,036 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:14,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:14,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:32:14,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:32:14,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:32:14,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:32:14,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13" (1/1) ... [2022-12-13 12:32:14,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:32:14,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:32:14,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:32:14,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 12:32:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:32:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:32:14,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:32:14,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:32:14,163 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:32:14,165 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:32:14,361 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:32:14,372 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:32:14,373 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-13 12:32:14,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:32:14 BoogieIcfgContainer [2022-12-13 12:32:14,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:32:14,375 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 12:32:14,375 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 12:32:14,379 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 12:32:14,379 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:32:14,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 12:32:13" (1/3) ... [2022-12-13 12:32:14,380 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18d0959c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:32:14, skipping insertion in model container [2022-12-13 12:32:14,380 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:32:14,380 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:13" (2/3) ... [2022-12-13 12:32:14,381 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18d0959c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:32:14, skipping insertion in model container [2022-12-13 12:32:14,381 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:32:14,381 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:32:14" (3/3) ... [2022-12-13 12:32:14,382 INFO L332 chiAutomizerObserver]: Analyzing ICFG psyco_io_1.c [2022-12-13 12:32:14,438 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 12:32:14,438 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 12:32:14,438 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 12:32:14,438 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 12:32:14,438 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 12:32:14,438 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 12:32:14,438 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 12:32:14,438 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 12:32:14,443 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) [2022-12-13 12:32:14,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-12-13 12:32:14,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:32:14,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:32:14,467 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 12:32:14,467 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:32:14,468 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 12:32:14,468 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) [2022-12-13 12:32:14,472 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-12-13 12:32:14,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:32:14,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:32:14,472 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 12:32:14,472 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:32:14,479 INFO L748 eck$LassoCheckResult]: Stem: 28#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3);~m_flush~0 := 1;~m_PipedOutputStream~0 := 2;~m_close~0 := 3;~m_write~0 := 4;~m_connect_1~0 := 5;~m_connect_2~0 := 6; 36#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_sink~0#1, main_~this_sinkConnected~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_sink~0#1 := 0;main_~this_sinkConnected~0#1 := 0; 10#L25-2true [2022-12-13 12:32:14,480 INFO L750 eck$LassoCheckResult]: Loop: 10#L25-2true goto; 34#L290-2true 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; 42#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); 10#L25-2true [2022-12-13 12:32:14,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:32:14,485 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 12:32:14,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:32:14,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856681477] [2022-12-13 12:32:14,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:32:14,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:32:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:14,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:32:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:14,581 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:32:14,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:32:14,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1070475851, now seen corresponding path program 1 times [2022-12-13 12:32:14,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:32:14,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575455254] [2022-12-13 12:32:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:32:14,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:32:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:14,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:32:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:14,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:32:14,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:32:14,601 INFO L85 PathProgramCache]: Analyzing trace with hash 150525069, now seen corresponding path program 1 times [2022-12-13 12:32:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:32:14,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578427911] [2022-12-13 12:32:14,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:32:14,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:32:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:32:14,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:32:14,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:32:14,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578427911] [2022-12-13 12:32:14,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578427911] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:32:14,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:32:14,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:32:14,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477865975] [2022-12-13 12:32:14,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:32:14,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:32:14,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:32:14,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:32:14,771 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) [2022-12-13 12:32:14,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:32:14,810 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2022-12-13 12:32:14,811 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 102 transitions. [2022-12-13 12:32:14,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-12-13 12:32:14,817 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 77 transitions. [2022-12-13 12:32:14,818 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-12-13 12:32:14,818 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2022-12-13 12:32:14,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 77 transitions. [2022-12-13 12:32:14,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:32:14,819 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 77 transitions. [2022-12-13 12:32:14,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 77 transitions. [2022-12-13 12:32:14,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-12-13 12:32:14,843 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) [2022-12-13 12:32:14,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2022-12-13 12:32:14,845 INFO L240 hiAutomatonCegarLoop]: Abstraction has 52 states and 77 transitions. [2022-12-13 12:32:14,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:32:14,849 INFO L428 stractBuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2022-12-13 12:32:14,850 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 12:32:14,850 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 77 transitions. [2022-12-13 12:32:14,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-12-13 12:32:14,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:32:14,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:32:14,851 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 12:32:14,851 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 12:32:14,852 INFO L748 eck$LassoCheckResult]: Stem: 177#$Ultimate##0 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; 178#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; 152#L25-2 goto; 153#L290-2 [2022-12-13 12:32:14,852 INFO L750 eck$LassoCheckResult]: Loop: 153#L290-2 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; 183#L35 assume 0 == main_~q~0#1; 187#L36 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1; 153#L290-2 [2022-12-13 12:32:14,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:32:14,853 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2022-12-13 12:32:14,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:32:14,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917959671] [2022-12-13 12:32:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:32:14,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:32:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:14,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:32:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:14,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:32:14,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:32:14,865 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2022-12-13 12:32:14,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:32:14,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299164414] [2022-12-13 12:32:14,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:32:14,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:32:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:14,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:32:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:14,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:32:14,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:32:14,872 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2022-12-13 12:32:14,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:32:14,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737611933] [2022-12-13 12:32:14,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:32:14,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:32:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:14,879 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:32:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:14,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:32:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:15,071 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:32:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:15,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 12:32:15 BoogieIcfgContainer [2022-12-13 12:32:15,120 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 12:32:15,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:32:15,121 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:32:15,121 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:32:15,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:32:14" (3/4) ... [2022-12-13 12:32:15,124 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 12:32:15,162 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:32:15,162 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:32:15,163 INFO L158 Benchmark]: Toolchain (without parser) took 1348.59ms. Allocated memory is still 138.4MB. Free memory was 112.2MB in the beginning and 109.1MB in the end (delta: 3.2MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2022-12-13 12:32:15,163 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 138.4MB. Free memory is still 115.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:32:15,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.93ms. Allocated memory is still 138.4MB. Free memory was 112.2MB in the beginning and 100.1MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 12:32:15,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.92ms. Allocated memory is still 138.4MB. Free memory was 100.1MB in the beginning and 98.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:32:15,165 INFO L158 Benchmark]: Boogie Preprocessor took 17.57ms. Allocated memory is still 138.4MB. Free memory was 98.2MB in the beginning and 96.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:32:15,165 INFO L158 Benchmark]: RCFGBuilder took 335.28ms. Allocated memory is still 138.4MB. Free memory was 96.3MB in the beginning and 111.3MB in the end (delta: -15.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 12:32:15,166 INFO L158 Benchmark]: BuchiAutomizer took 744.56ms. Allocated memory is still 138.4MB. Free memory was 111.3MB in the beginning and 110.3MB in the end (delta: 983.8kB). Peak memory consumption was 59.9MB. Max. memory is 16.1GB. [2022-12-13 12:32:15,166 INFO L158 Benchmark]: Witness Printer took 42.05ms. Allocated memory is still 138.4MB. Free memory was 110.3MB in the beginning and 109.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:32:15,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 138.4MB. Free memory is still 115.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.93ms. Allocated memory is still 138.4MB. Free memory was 112.2MB in the beginning and 100.1MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.92ms. Allocated memory is still 138.4MB. Free memory was 100.1MB in the beginning and 98.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.57ms. Allocated memory is still 138.4MB. Free memory was 98.2MB in the beginning and 96.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 335.28ms. Allocated memory is still 138.4MB. Free memory was 96.3MB in the beginning and 111.3MB in the end (delta: -15.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 744.56ms. Allocated memory is still 138.4MB. Free memory was 111.3MB in the beginning and 110.3MB in the end (delta: 983.8kB). Peak memory consumption was 59.9MB. Max. memory is 16.1GB. * Witness Printer took 42.05ms. Allocated memory is still 138.4MB. Free memory was 110.3MB in the beginning and 109.1MB in the end (delta: 1.2MB). 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 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -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! [2022-12-13 12:32:15,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9496dd79-7548-442e-9443-6dc456c5f4e1/bin/uautomizer-uyxdKDjOR8/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)