./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 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_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4be4b344509b887bc91f2389f98de1e4ff745494aee0f078864fd49e79b0b4b8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 09:03:00,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:03:00,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:03:00,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:03:00,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:03:00,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:03:00,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:03:00,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:03:00,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:03:00,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:03:00,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:03:00,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:03:00,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:03:00,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:03:00,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:03:00,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:03:00,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:03:00,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:03:00,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:03:00,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:03:00,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:03:00,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:03:00,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:03:00,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:03:00,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:03:00,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:03:00,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:03:00,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:03:00,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:03:00,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:03:00,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:03:00,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:03:00,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:03:00,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:03:00,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:03:00,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:03:00,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:03:00,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:03:00,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:03:00,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:03:00,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:03:00,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-21 09:03:00,775 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:03:00,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:03:00,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:03:00,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:03:00,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:03:00,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:03:00,779 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:03:00,780 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 09:03:00,780 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 09:03:00,780 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 09:03:00,782 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 09:03:00,782 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 09:03:00,782 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 09:03:00,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:03:00,783 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:03:00,783 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:03:00,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:03:00,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:03:00,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:03:00,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 09:03:00,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 09:03:00,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 09:03:00,785 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:03:00,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:03:00,786 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 09:03:00,786 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:03:00,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 09:03:00,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:03:00,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:03:00,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:03:00,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:03:00,790 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 09:03:00,791 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_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4be4b344509b887bc91f2389f98de1e4ff745494aee0f078864fd49e79b0b4b8 [2022-11-21 09:03:01,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:03:01,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:03:01,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:03:01,184 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:03:01,185 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:03:01,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2022-11-21 09:03:04,789 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:03:05,000 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:03:05,001 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2022-11-21 09:03:05,009 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/data/cd5598a64/22a2dd02260f4fbeb64149dacb178c3d/FLAG7658b33ab [2022-11-21 09:03:05,027 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/data/cd5598a64/22a2dd02260f4fbeb64149dacb178c3d [2022-11-21 09:03:05,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:03:05,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:03:05,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:03:05,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:03:05,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:03:05,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a048227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05, skipping insertion in model container [2022-11-21 09:03:05,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:03:05,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:03:05,309 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_de3a210b-4edb-4da9-9eb8-d31d82273121/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i[893,906] [2022-11-21 09:03:05,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:03:05,349 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:03:05,373 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_de3a210b-4edb-4da9-9eb8-d31d82273121/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i[893,906] [2022-11-21 09:03:05,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:03:05,408 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:03:05,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05 WrapperNode [2022-11-21 09:03:05,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:03:05,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:03:05,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:03:05,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:03:05,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,465 INFO L138 Inliner]: procedures = 16, calls = 14, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 105 [2022-11-21 09:03:05,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:03:05,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:03:05,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:03:05,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:03:05,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,514 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:03:05,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:03:05,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:03:05,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:03:05,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2022-11-21 09:03:05,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:03:05,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:03:05,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:03:05,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 09:03:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:03:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:03:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:03:05,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:03:05,713 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:03:05,716 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:03:05,916 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:03:05,924 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:03:05,925 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 09:03:05,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:05 BoogieIcfgContainer [2022-11-21 09:03:05,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:03:05,929 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 09:03:05,929 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 09:03:05,934 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 09:03:05,935 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 09:03:05,935 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 09:03:05" (1/3) ... [2022-11-21 09:03:05,936 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b7459e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:03:05, skipping insertion in model container [2022-11-21 09:03:05,937 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 09:03:05,937 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (2/3) ... [2022-11-21 09:03:05,937 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b7459e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:03:05, skipping insertion in model container [2022-11-21 09:03:05,938 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 09:03:05,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:05" (3/3) ... [2022-11-21 09:03:05,939 INFO L332 chiAutomizerObserver]: Analyzing ICFG sendmail-close-angle.i [2022-11-21 09:03:06,010 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 09:03:06,010 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 09:03:06,011 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 09:03:06,011 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 09:03:06,013 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 09:03:06,013 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 09:03:06,013 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 09:03:06,014 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 09:03:06,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:03:06,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2022-11-21 09:03:06,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:03:06,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:03:06,051 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-21 09:03:06,051 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:03:06,052 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 09:03:06,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:03:06,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2022-11-21 09:03:06,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:03:06,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:03:06,057 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-21 09:03:06,057 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:03:06,069 INFO L748 eck$LassoCheckResult]: Stem: 20#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); 8#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~post4#1, main_#t~post5#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post7#1, main_~in~0#1, main_~inlen~0#1, main_~bufferlen~0#1, main_~buf~0#1, main_~buflim~0#1;havoc main_~in~0#1;main_~inlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~bufferlen~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_~buf~0#1;havoc main_~buflim~0#1; 7#L31true assume main_~bufferlen~0#1 > 1; 35#L31-1true assume main_~inlen~0#1 > 0; 24#L32true assume main_~bufferlen~0#1 < main_~inlen~0#1; 23#L33true main_~buf~0#1 := 0;main_~in~0#1 := 0;main_~buflim~0#1 := main_~bufferlen~0#1 - 2; 19#L37-2true [2022-11-21 09:03:06,071 INFO L750 eck$LassoCheckResult]: Loop: 19#L37-2true assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; 17#L39true assume !(main_~buf~0#1 == main_~buflim~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~buf~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 30#L18true assume !(0 == __VERIFIER_assert_~cond#1); 14#L18-2true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~buf~0#1 < main_~bufferlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 16#L18-3true assume !(0 == __VERIFIER_assert_~cond#1); 4#L18-5true assume { :end_inline___VERIFIER_assert } true;main_#t~post4#1 := main_~buf~0#1;main_~buf~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5#L44true main_#t~post5#1 := main_~in~0#1;main_~in~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~in~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 15#L18-6true assume !(0 == __VERIFIER_assert_~cond#1); 10#L18-8true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~in~0#1 < main_~inlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 28#L18-9true assume !(0 == __VERIFIER_assert_~cond#1); 31#L18-11true assume { :end_inline___VERIFIER_assert } true; 19#L37-2true [2022-11-21 09:03:06,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:03:06,087 INFO L85 PathProgramCache]: Analyzing trace with hash 889510797, now seen corresponding path program 1 times [2022-11-21 09:03:06,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:03:06,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676503692] [2022-11-21 09:03:06,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:03:06,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:03:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:03:06,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:03:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:03:06,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:03:06,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:03:06,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1774709709, now seen corresponding path program 1 times [2022-11-21 09:03:06,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:03:06,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654713280] [2022-11-21 09:03:06,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:03:06,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:03:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:03:06,297 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:03:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:03:06,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:03:06,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:03:06,355 INFO L85 PathProgramCache]: Analyzing trace with hash 72534311, now seen corresponding path program 1 times [2022-11-21 09:03:06,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:03:06,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167980712] [2022-11-21 09:03:06,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:03:06,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:03:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:03:06,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:03:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:03:06,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:03:06,885 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 09:03:06,886 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 09:03:06,886 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 09:03:06,887 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 09:03:06,887 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 09:03:06,887 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:03:06,887 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 09:03:06,887 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 09:03:06,887 INFO L133 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle.i_Iteration1_Loop [2022-11-21 09:03:06,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 09:03:06,888 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 09:03:06,911 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:03:06,932 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:03:06,936 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:03:06,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:03:06,955 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:03:06,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:03:07,102 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 09:03:07,103 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 09:03:07,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:03:07,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:03:07,109 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:03:07,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 09:03:07,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 09:03:07,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 09:03:07,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-21 09:03:07,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:03:07,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:03:07,168 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:03:07,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 09:03:07,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 09:03:07,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 09:03:07,286 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 09:03:07,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 09:03:07,290 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 09:03:07,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 09:03:07,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 09:03:07,291 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 09:03:07,291 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 09:03:07,291 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:03:07,291 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 09:03:07,291 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 09:03:07,291 INFO L133 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle.i_Iteration1_Loop [2022-11-21 09:03:07,291 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 09:03:07,292 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 09:03:07,293 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:03:07,316 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:03:07,321 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:03:07,329 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:03:07,346 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:03:07,360 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:03:07,492 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 09:03:07,497 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 09:03:07,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:03:07,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:03:07,501 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:03:07,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 09:03:07,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 09:03:07,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:03:07,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:03:07,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:03:07,531 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-21 09:03:07,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:03:07,540 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-21 09:03:07,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:03:07,552 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 09:03:07,585 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-21 09:03:07,585 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-21 09:03:07,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:03:07,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:03:07,626 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:03:07,629 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 09:03:07,629 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 09:03:07,630 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 09:03:07,630 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~bufferlen~0#1, ULTIMATE.start_main_~buf~0#1) = 1*ULTIMATE.start_main_~bufferlen~0#1 - 1*ULTIMATE.start_main_~buf~0#1 Supporting invariants [] [2022-11-21 09:03:07,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-21 09:03:07,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 09:03:07,644 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 09:03:07,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:03:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:03:07,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 09:03:07,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:03:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:03:07,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 09:03:07,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:03:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:03:08,001 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-21 09:03:08,017 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 38 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 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 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:03:08,259 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 38 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 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 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) Result 106 states and 134 transitions. Complement of second has 9 states. [2022-11-21 09:03:08,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-21 09:03:08,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:03:08,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2022-11-21 09:03:08,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 99 transitions. Stem has 6 letters. Loop has 11 letters. [2022-11-21 09:03:08,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:03:08,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 99 transitions. Stem has 17 letters. Loop has 11 letters. [2022-11-21 09:03:08,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:03:08,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 99 transitions. Stem has 6 letters. Loop has 22 letters. [2022-11-21 09:03:08,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:03:08,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 134 transitions. [2022-11-21 09:03:08,300 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 09:03:08,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 0 states and 0 transitions. [2022-11-21 09:03:08,304 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-21 09:03:08,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-21 09:03:08,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-21 09:03:08,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:03:08,305 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:03:08,305 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:03:08,305 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:03:08,305 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 09:03:08,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-21 09:03:08,306 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 09:03:08,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-21 09:03:08,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 09:03:08 BoogieIcfgContainer [2022-11-21 09:03:08,313 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 09:03:08,314 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:03:08,314 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:03:08,314 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:03:08,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:05" (3/4) ... [2022-11-21 09:03:08,318 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 09:03:08,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:03:08,319 INFO L158 Benchmark]: Toolchain (without parser) took 3287.04ms. Allocated memory is still 197.1MB. Free memory was 151.9MB in the beginning and 112.2MB in the end (delta: 39.7MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2022-11-21 09:03:08,319 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:03:08,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.64ms. Allocated memory is still 197.1MB. Free memory was 151.9MB in the beginning and 141.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 09:03:08,320 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.98ms. Allocated memory is still 197.1MB. Free memory was 141.4MB in the beginning and 140.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:03:08,321 INFO L158 Benchmark]: Boogie Preprocessor took 50.86ms. Allocated memory is still 197.1MB. Free memory was 140.1MB in the beginning and 138.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:03:08,322 INFO L158 Benchmark]: RCFGBuilder took 409.17ms. Allocated memory is still 197.1MB. Free memory was 138.7MB in the beginning and 127.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 09:03:08,322 INFO L158 Benchmark]: BuchiAutomizer took 2384.55ms. Allocated memory is still 197.1MB. Free memory was 127.3MB in the beginning and 112.2MB in the end (delta: 15.1MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2022-11-21 09:03:08,323 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 197.1MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:03:08,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.64ms. Allocated memory is still 197.1MB. Free memory was 151.9MB in the beginning and 141.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.98ms. Allocated memory is still 197.1MB. Free memory was 141.4MB in the beginning and 140.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.86ms. Allocated memory is still 197.1MB. Free memory was 140.1MB in the beginning and 138.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 409.17ms. Allocated memory is still 197.1MB. Free memory was 138.7MB in the beginning and 127.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2384.55ms. Allocated memory is still 197.1MB. Free memory was 127.3MB in the beginning and 112.2MB in the end (delta: 15.1MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 197.1MB. Free memory is still 112.2MB. 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 Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function bufferlen + -1 * buf and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 30 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf96 smp100 dnf169 smp100 tf104 neg95 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 131ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-21 09:03:08,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-21 09:03:08,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de3a210b-4edb-4da9-9eb8-d31d82273121/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE