./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 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_b30a8e73-668f-4b11-aff0-190cbf2492ad/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/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_b30a8e73-668f-4b11-aff0-190cbf2492ad/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/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_b30a8e73-668f-4b11-aff0-190cbf2492ad/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 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-6b4ec56 [2022-11-20 11:20:09,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:20:09,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:20:09,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:20:09,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:20:09,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:20:09,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:20:09,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:20:09,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:20:09,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:20:09,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:20:09,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:20:09,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:20:09,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:20:09,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:20:09,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:20:09,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:20:09,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:20:09,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:20:09,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:20:09,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:20:09,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:20:09,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:20:09,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:20:09,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:20:09,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:20:09,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:20:09,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:20:09,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:20:09,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:20:09,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:20:09,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:20:09,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:20:09,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:20:09,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:20:09,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:20:09,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:20:09,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:20:09,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:20:09,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:20:09,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:20:09,709 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 11:20:09,732 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:20:09,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:20:09,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:20:09,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:20:09,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:20:09,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:20:09,735 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:20:09,735 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 11:20:09,736 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 11:20:09,736 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 11:20:09,736 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 11:20:09,736 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 11:20:09,737 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 11:20:09,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:20:09,737 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:20:09,738 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:20:09,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:20:09,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:20:09,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:20:09,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 11:20:09,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 11:20:09,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 11:20:09,746 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:20:09,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:20:09,746 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 11:20:09,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:20:09,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 11:20:09,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:20:09,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:20:09,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:20:09,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:20:09,749 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 11:20:09,750 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_b30a8e73-668f-4b11-aff0-190cbf2492ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 [2022-11-20 11:20:10,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:20:10,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:20:10,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:20:10,054 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:20:10,054 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:20:10,056 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2022-11-20 11:20:13,095 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:20:13,322 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:20:13,324 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2022-11-20 11:20:13,332 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/bin/uautomizer-ug76WZFUDN/data/8a833dc04/ad79d7ab52e94f5cb60afcdc889ce5b2/FLAGaacd675ee [2022-11-20 11:20:13,347 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/bin/uautomizer-ug76WZFUDN/data/8a833dc04/ad79d7ab52e94f5cb60afcdc889ce5b2 [2022-11-20 11:20:13,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:20:13,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:20:13,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:20:13,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:20:13,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:20:13,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236c1422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13, skipping insertion in model container [2022-11-20 11:20:13,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:20:13,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:20:13,549 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_b30a8e73-668f-4b11-aff0-190cbf2492ad/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i[893,906] [2022-11-20 11:20:13,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:20:13,581 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:20:13,600 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_b30a8e73-668f-4b11-aff0-190cbf2492ad/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i[893,906] [2022-11-20 11:20:13,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:20:13,642 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:20:13,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13 WrapperNode [2022-11-20 11:20:13,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:20:13,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:20:13,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:20:13,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:20:13,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,695 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 172 [2022-11-20 11:20:13,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:20:13,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:20:13,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:20:13,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:20:13,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,719 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:20:13,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:20:13,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:20:13,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:20:13,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13" (1/1) ... [2022-11-20 11:20:13,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:20:13,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:20:13,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:20:13,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 11:20:13,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:20:13,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:20:13,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:20:13,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:20:13,895 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:20:13,898 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:20:14,183 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:20:14,191 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:20:14,191 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 11:20:14,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:20:14 BoogieIcfgContainer [2022-11-20 11:20:14,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:20:14,207 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 11:20:14,207 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 11:20:14,211 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 11:20:14,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:20:14,212 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:20:13" (1/3) ... [2022-11-20 11:20:14,213 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34ae6965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:20:14, skipping insertion in model container [2022-11-20 11:20:14,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:20:14,213 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:20:13" (2/3) ... [2022-11-20 11:20:14,214 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34ae6965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:20:14, skipping insertion in model container [2022-11-20 11:20:14,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:20:14,214 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:20:14" (3/3) ... [2022-11-20 11:20:14,215 INFO L332 chiAutomizerObserver]: Analyzing ICFG SpamAssassin-loop.i [2022-11-20 11:20:14,306 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 11:20:14,307 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 11:20:14,307 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 11:20:14,307 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 11:20:14,307 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 11:20:14,307 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 11:20:14,308 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 11:20:14,308 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 11:20:14,312 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) [2022-11-20 11:20:14,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-11-20 11:20:14,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:20:14,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:20:14,341 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 11:20:14,342 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 11:20:14,342 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 11:20:14,343 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) [2022-11-20 11:20:14,354 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-11-20 11:20:14,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:20:14,354 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:20:14,355 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 11:20:14,355 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 11:20:14,366 INFO L748 eck$LassoCheckResult]: Stem: 51#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(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 [2022-11-20 11:20:14,368 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 [2022-11-20 11:20:14,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:20:14,380 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-11-20 11:20:14,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:20:14,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847084822] [2022-11-20 11:20:14,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:20:14,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:20:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:20:14,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:20:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:20:14,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:20:14,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:20:14,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1447, now seen corresponding path program 1 times [2022-11-20 11:20:14,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:20:14,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120355879] [2022-11-20 11:20:14,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:20:14,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:20:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:20:14,595 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:20:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:20:14,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:20:14,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:20:14,601 INFO L85 PathProgramCache]: Analyzing trace with hash 28695946, now seen corresponding path program 1 times [2022-11-20 11:20:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:20:14,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39976861] [2022-11-20 11:20:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:20:14,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:20:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:20:14,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:20:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:20:14,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:20:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:20:15,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:20:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:20:15,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:20:15 BoogieIcfgContainer [2022-11-20 11:20:15,054 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 11:20:15,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:20:15,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:20:15,055 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:20:15,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:20:14" (3/4) ... [2022-11-20 11:20:15,059 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 11:20:15,114 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:20:15,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:20:15,116 INFO L158 Benchmark]: Toolchain (without parser) took 1764.08ms. Allocated memory is still 176.2MB. Free memory was 136.3MB in the beginning and 132.8MB in the end (delta: 3.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-11-20 11:20:15,117 INFO L158 Benchmark]: CDTParser took 0.91ms. Allocated memory is still 138.4MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:20:15,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.08ms. Allocated memory is still 176.2MB. Free memory was 136.0MB in the beginning and 125.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:20:15,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.84ms. Allocated memory is still 176.2MB. Free memory was 125.5MB in the beginning and 123.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:20:15,118 INFO L158 Benchmark]: Boogie Preprocessor took 26.78ms. Allocated memory is still 176.2MB. Free memory was 123.8MB in the beginning and 122.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:20:15,119 INFO L158 Benchmark]: RCFGBuilder took 470.22ms. Allocated memory is still 176.2MB. Free memory was 122.1MB in the beginning and 108.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:20:15,119 INFO L158 Benchmark]: BuchiAutomizer took 847.15ms. Allocated memory is still 176.2MB. Free memory was 108.3MB in the beginning and 134.8MB in the end (delta: -26.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:20:15,120 INFO L158 Benchmark]: Witness Printer took 59.58ms. Allocated memory is still 176.2MB. Free memory was 134.8MB in the beginning and 132.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:20:15,122 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91ms. Allocated memory is still 138.4MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.08ms. Allocated memory is still 176.2MB. Free memory was 136.0MB in the beginning and 125.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.84ms. Allocated memory is still 176.2MB. Free memory was 125.5MB in the beginning and 123.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.78ms. Allocated memory is still 176.2MB. Free memory was 123.8MB in the beginning and 122.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.22ms. Allocated memory is still 176.2MB. Free memory was 122.1MB in the beginning and 108.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 847.15ms. Allocated memory is still 176.2MB. Free memory was 108.3MB in the beginning and 134.8MB in the end (delta: -26.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.58ms. Allocated memory is still 176.2MB. Free memory was 134.8MB in the beginning and 132.8MB in the end (delta: 2.0MB). 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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! [2022-11-20 11:20:15,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30a8e73-668f-4b11-aff0-190cbf2492ad/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)