./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/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_84679b9b-2354-44b2-8b2d-d3f5841ef168/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/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_84679b9b-2354-44b2-8b2d-d3f5841ef168/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 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 --- 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 14:50:59,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:50:59,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:50:59,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:50:59,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:50:59,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:50:59,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:50:59,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:50:59,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:50:59,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:50:59,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:50:59,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:50:59,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:50:59,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:50:59,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:50:59,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:50:59,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:50:59,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:50:59,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:50:59,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:50:59,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:50:59,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:50:59,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:50:59,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:50:59,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:50:59,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:50:59,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:50:59,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:50:59,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:50:59,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:50:59,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:50:59,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:50:59,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:50:59,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:50:59,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:50:59,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:50:59,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:50:59,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:50:59,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:50:59,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:50:59,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:50:59,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 14:50:59,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:50:59,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:50:59,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:50:59,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:50:59,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:50:59,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:50:59,430 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:50:59,430 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 14:50:59,430 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 14:50:59,430 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 14:50:59,430 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 14:50:59,430 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 14:50:59,430 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 14:50:59,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:50:59,431 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:50:59,431 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:50:59,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:50:59,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:50:59,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:50:59,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 14:50:59,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 14:50:59,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 14:50:59,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:50:59,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:50:59,432 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 14:50:59,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:50:59,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 14:50:59,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:50:59,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:50:59,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:50:59,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:50:59,433 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 14:50:59,433 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_84679b9b-2354-44b2-8b2d-d3f5841ef168/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 [2022-12-13 14:50:59,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:50:59,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:50:59,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:50:59,613 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:50:59,613 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:50:59,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2022-12-13 14:51:02,158 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:51:02,300 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:51:02,300 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2022-12-13 14:51:02,304 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/bin/uautomizer-uyxdKDjOR8/data/dd0eb3ef5/4a45c8ea7c824763a4305e7eaaa80021/FLAG2d633b77a [2022-12-13 14:51:02,314 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/bin/uautomizer-uyxdKDjOR8/data/dd0eb3ef5/4a45c8ea7c824763a4305e7eaaa80021 [2022-12-13 14:51:02,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:51:02,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:51:02,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:51:02,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:51:02,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:51:02,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe9936c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02, skipping insertion in model container [2022-12-13 14:51:02,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:51:02,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:51:02,467 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_84679b9b-2354-44b2-8b2d-d3f5841ef168/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i[893,906] [2022-12-13 14:51:02,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:51:02,490 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:51:02,503 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_84679b9b-2354-44b2-8b2d-d3f5841ef168/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i[893,906] [2022-12-13 14:51:02,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:51:02,521 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:51:02,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02 WrapperNode [2022-12-13 14:51:02,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:51:02,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:51:02,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:51:02,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:51:02,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,550 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 172 [2022-12-13 14:51:02,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:51:02,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:51:02,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:51:02,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:51:02,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,572 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:51:02,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:51:02,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:51:02,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:51:02,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02" (1/1) ... [2022-12-13 14:51:02,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:51:02,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:51:02,607 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:51:02,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 14:51:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:51:02,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:51:02,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:51:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:51:02,706 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:51:02,708 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:51:02,855 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:51:02,860 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:51:02,861 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 14:51:02,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:51:02 BoogieIcfgContainer [2022-12-13 14:51:02,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:51:02,864 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 14:51:02,864 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 14:51:02,867 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 14:51:02,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:51:02,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 02:51:02" (1/3) ... [2022-12-13 14:51:02,869 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d0ff4e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 02:51:02, skipping insertion in model container [2022-12-13 14:51:02,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:51:02,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:51:02" (2/3) ... [2022-12-13 14:51:02,870 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d0ff4e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 02:51:02, skipping insertion in model container [2022-12-13 14:51:02,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:51:02,871 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:51:02" (3/3) ... [2022-12-13 14:51:02,872 INFO L332 chiAutomizerObserver]: Analyzing ICFG SpamAssassin-loop.i [2022-12-13 14:51:02,919 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 14:51:02,920 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 14:51:02,920 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 14:51:02,920 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 14:51:02,920 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 14:51:02,920 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 14:51:02,920 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 14:51:02,920 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 14:51:02,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 59 states have internal predecessors, (82), 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 14:51:02,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-12-13 14:51:02,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:51:02,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:51:02,948 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 14:51:02,948 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 14:51:02,948 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 14:51:02,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 59 states have internal predecessors, (82), 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 14:51:02,953 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-12-13 14:51:02,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:51:02,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:51:02,954 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 14:51:02,954 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-12-13 14:51:02,961 INFO L748 eck$LassoCheckResult]: Stem: 33#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 40#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_#t~post10#1, main_~len~0#1, main_~i~0#1, main_~j~0#1, main_~bufsize~0#1, main_~limit~0#1;havoc main_~len~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~bufsize~0#1;main_~bufsize~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L31true assume !(main_~bufsize~0#1 < 0);main_~len~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~limit~0#1 := main_~bufsize~0#1 - 4;main_~i~0#1 := 0; 41#L34-2true [2022-12-13 14:51:02,962 INFO L750 eck$LassoCheckResult]: Loop: 41#L34-2true assume !!(main_~i~0#1 < main_~len~0#1);main_~j~0#1 := 0; 17#L35-2true assume !(main_~i~0#1 < main_~len~0#1 && main_~j~0#1 < main_~limit~0#1); 41#L34-2true [2022-12-13 14:51:02,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:51:02,967 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-12-13 14:51:02,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:51:02,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400156554] [2022-12-13 14:51:02,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:51:02,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:51:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:51:03,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:51:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:51:03,080 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:51:03,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:51:03,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1447, now seen corresponding path program 1 times [2022-12-13 14:51:03,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:51:03,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699689628] [2022-12-13 14:51:03,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:51:03,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:51:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:51:03,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:51:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:51:03,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:51:03,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:51:03,092 INFO L85 PathProgramCache]: Analyzing trace with hash 28695946, now seen corresponding path program 1 times [2022-12-13 14:51:03,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:51:03,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476001227] [2022-12-13 14:51:03,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:51:03,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:51:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:51:03,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:51:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:51:03,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:51:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:51:03,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:51:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:51:03,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 02:51:03 BoogieIcfgContainer [2022-12-13 14:51:03,308 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 14:51:03,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:51:03,309 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:51:03,309 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:51:03,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:51:02" (3/4) ... [2022-12-13 14:51:03,312 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 14:51:03,342 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:51:03,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:51:03,343 INFO L158 Benchmark]: Toolchain (without parser) took 1025.54ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 60.3MB in the beginning and 122.4MB in the end (delta: -62.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:51:03,344 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 115.3MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:51:03,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.36ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 60.0MB in the beginning and 122.1MB in the end (delta: -62.0MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-12-13 14:51:03,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.01ms. Allocated memory is still 155.2MB. Free memory was 122.1MB in the beginning and 120.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:51:03,345 INFO L158 Benchmark]: Boogie Preprocessor took 24.13ms. Allocated memory is still 155.2MB. Free memory was 120.5MB in the beginning and 119.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:51:03,345 INFO L158 Benchmark]: RCFGBuilder took 286.76ms. Allocated memory is still 155.2MB. Free memory was 119.0MB in the beginning and 105.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 14:51:03,345 INFO L158 Benchmark]: BuchiAutomizer took 443.97ms. Allocated memory is still 155.2MB. Free memory was 105.3MB in the beginning and 123.4MB in the end (delta: -18.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:51:03,346 INFO L158 Benchmark]: Witness Printer took 33.70ms. Allocated memory is still 155.2MB. Free memory was 123.4MB in the beginning and 122.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:51:03,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 115.3MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.36ms. Allocated memory was 115.3MB in the beginning and 155.2MB in the end (delta: 39.8MB). Free memory was 60.0MB in the beginning and 122.1MB in the end (delta: -62.0MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.01ms. Allocated memory is still 155.2MB. Free memory was 122.1MB in the beginning and 120.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.13ms. Allocated memory is still 155.2MB. Free memory was 120.5MB in the beginning and 119.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.76ms. Allocated memory is still 155.2MB. Free memory was 119.0MB in the beginning and 105.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 443.97ms. Allocated memory is still 155.2MB. Free memory was 105.3MB in the beginning and 123.4MB in the end (delta: -18.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 33.70ms. Allocated memory is still 155.2MB. Free memory was 123.4MB in the beginning and 122.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 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: 34]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L26] int len; [L27] int i; [L28] int j; [L29] int bufsize; [L30] bufsize = __VERIFIER_nondet_int() [L31] COND FALSE !(bufsize < 0) [L32] len = __VERIFIER_nondet_int() [L33] int limit = bufsize - 4; [L34] i = 0 VAL [bufsize=4, i=0, len=1, limit=0] Loop: [L34] COND TRUE i < len [L35] j = 0 [L35] COND FALSE !(i < len && j < limit) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 34]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L26] int len; [L27] int i; [L28] int j; [L29] int bufsize; [L30] bufsize = __VERIFIER_nondet_int() [L31] COND FALSE !(bufsize < 0) [L32] len = __VERIFIER_nondet_int() [L33] int limit = bufsize - 4; [L34] i = 0 VAL [bufsize=4, i=0, len=1, limit=0] Loop: [L34] COND TRUE i < len [L35] j = 0 [L35] COND FALSE !(i < len && j < limit) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 14:51:03,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84679b9b-2354-44b2-8b2d-d3f5841ef168/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)