./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad8e21886f5f45a7c58400298498a881b4f628bf6fff913be81ab14cf250dd19 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 20:57:54,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:57:54,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:57:54,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:57:54,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:57:54,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:57:54,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:57:54,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:57:54,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:57:54,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:57:54,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:57:54,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:57:54,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:57:54,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:57:54,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:57:54,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:57:54,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:57:54,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:57:54,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:57:54,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:57:54,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:57:54,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:57:54,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:57:54,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:57:54,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:57:54,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:57:54,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:57:54,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:57:54,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:57:54,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:57:54,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:57:54,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:57:54,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:57:54,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:57:54,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:57:54,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:57:54,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:57:54,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:57:54,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:57:54,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:57:54,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:57:54,579 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 20:57:54,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:57:54,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:57:54,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:57:54,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:57:54,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:57:54,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:57:54,606 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:57:54,606 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 20:57:54,606 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 20:57:54,606 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 20:57:54,607 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 20:57:54,607 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 20:57:54,607 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 20:57:54,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:57:54,607 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:57:54,607 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:57:54,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:57:54,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:57:54,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:57:54,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 20:57:54,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 20:57:54,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 20:57:54,609 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:57:54,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:57:54,609 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 20:57:54,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:57:54,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 20:57:54,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:57:54,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:57:54,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:57:54,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:57:54,611 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 20:57:54,611 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_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad8e21886f5f45a7c58400298498a881b4f628bf6fff913be81ab14cf250dd19 [2022-12-13 20:57:54,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:57:54,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:57:54,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:57:54,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:57:54,833 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:57:54,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2022-12-13 20:57:57,393 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:57:57,521 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:57:57,522 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2022-12-13 20:57:57,526 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/data/e7271cbf5/48b1f13dad6b43b6bd9c1258806c5f18/FLAG06e19f1b3 [2022-12-13 20:57:57,537 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/data/e7271cbf5/48b1f13dad6b43b6bd9c1258806c5f18 [2022-12-13 20:57:57,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:57:57,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:57:57,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:57:57,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:57:57,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:57:57,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53417fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57, skipping insertion in model container [2022-12-13 20:57:57,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:57:57,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:57:57,682 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_cf6d8d99-0962-4e79-bad4-68769a77905b/sv-benchmarks/c/loop-invgen/apache-get-tag.i[893,906] [2022-12-13 20:57:57,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:57:57,700 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:57:57,709 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_cf6d8d99-0962-4e79-bad4-68769a77905b/sv-benchmarks/c/loop-invgen/apache-get-tag.i[893,906] [2022-12-13 20:57:57,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:57:57,723 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:57:57,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57 WrapperNode [2022-12-13 20:57:57,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:57:57,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:57:57,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:57:57,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:57:57,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,750 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 174 [2022-12-13 20:57:57,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:57:57,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:57:57,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:57:57,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:57:57,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,765 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:57:57,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:57:57,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:57:57,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:57:57,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57" (1/1) ... [2022-12-13 20:57:57,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 20:57:57,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:57:57,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 20:57:57,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 20:57:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:57:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:57:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:57:57,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:57:57,871 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:57:57,873 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:57:58,007 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:57:58,012 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:57:58,012 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 20:57:58,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:57:58 BoogieIcfgContainer [2022-12-13 20:57:58,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:57:58,014 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 20:57:58,014 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 20:57:58,017 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 20:57:58,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 20:57:58,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 08:57:57" (1/3) ... [2022-12-13 20:57:58,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46fc752f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 08:57:58, skipping insertion in model container [2022-12-13 20:57:58,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 20:57:58,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:57:57" (2/3) ... [2022-12-13 20:57:58,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46fc752f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 08:57:58, skipping insertion in model container [2022-12-13 20:57:58,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 20:57:58,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:57:58" (3/3) ... [2022-12-13 20:57:58,019 INFO L332 chiAutomizerObserver]: Analyzing ICFG apache-get-tag.i [2022-12-13 20:57:58,059 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 20:57:58,059 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 20:57:58,059 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 20:57:58,059 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 20:57:58,059 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 20:57:58,059 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 20:57:58,059 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 20:57:58,059 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 20:57:58,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:57:58,079 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2022-12-13 20:57:58,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 20:57:58,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 20:57:58,082 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-12-13 20:57:58,083 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:57:58,083 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 20:57:58,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:57:58,087 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2022-12-13 20:57:58,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 20:57:58,087 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 20:57:58,087 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-12-13 20:57:58,087 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:57:58,092 INFO L748 eck$LassoCheckResult]: Stem: 36#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 45#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~pre2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~post8#1, main_#t~nondet9#1, main_#t~post10#1, main_~tagbuf_len~0#1, main_~t~0#1;havoc main_~tagbuf_len~0#1;havoc main_~t~0#1;main_~tagbuf_len~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 24#L29true assume main_~tagbuf_len~0#1 >= 1; 56#L29-1true main_~t~0#1 := 0;main_#t~pre2#1 := main_~tagbuf_len~0#1 - 1;main_~tagbuf_len~0#1 := main_~tagbuf_len~0#1 - 1;havoc main_#t~pre2#1; 47#L32-2true [2022-12-13 20:57:58,093 INFO L750 eck$LassoCheckResult]: Loop: 47#L32-2true assume !false; 25#L33true assume !(main_~t~0#1 == main_~tagbuf_len~0#1); 66#L38true assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~t~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 52#L18-6true assume !(0 == __VERIFIER_assert_~cond#1); 46#L18-8true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~t~0#1 <= main_~tagbuf_len~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 58#L18-9true assume !(0 == __VERIFIER_assert_~cond#1); 33#L18-11true assume { :end_inline___VERIFIER_assert } true;main_#t~post4#1 := main_~t~0#1;main_~t~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 47#L32-2true [2022-12-13 20:57:58,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:57:58,098 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2022-12-13 20:57:58,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:57:58,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545172613] [2022-12-13 20:57:58,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:57:58,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:57:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:57:58,187 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:57:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:57:58,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:57:58,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:57:58,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1815086236, now seen corresponding path program 1 times [2022-12-13 20:57:58,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:57:58,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632885377] [2022-12-13 20:57:58,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:57:58,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:57:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:57:58,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:57:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:57:58,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:57:58,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:57:58,231 INFO L85 PathProgramCache]: Analyzing trace with hash -2133582282, now seen corresponding path program 1 times [2022-12-13 20:57:58,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:57:58,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883206314] [2022-12-13 20:57:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:57:58,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:57:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:57:58,241 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:57:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:57:58,252 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:57:58,390 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 20:57:58,390 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 20:57:58,390 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 20:57:58,390 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 20:57:58,390 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 20:57:58,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 20:57:58,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 20:57:58,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 20:57:58,391 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-get-tag.i_Iteration1_Loop [2022-12-13 20:57:58,391 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 20:57:58,391 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 20:57:58,403 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 20:57:58,417 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 20:57:58,419 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 20:57:58,425 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 20:57:58,486 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 20:57:58,486 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 20:57:58,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 20:57:58,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:57:58,490 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 20:57:58,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 20:57:58,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 20:57:58,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 20:57:58,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 20:57:58,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 20:57:58,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:57:58,510 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 20:57:58,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 20:57:58,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 20:57:58,512 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 20:57:58,551 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 20:57:58,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 20:57:58,555 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 20:57:58,555 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 20:57:58,555 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 20:57:58,556 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 20:57:58,556 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 20:57:58,556 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 20:57:58,556 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 20:57:58,556 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 20:57:58,556 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-get-tag.i_Iteration1_Loop [2022-12-13 20:57:58,556 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 20:57:58,556 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 20:57:58,558 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 20:57:58,562 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 20:57:58,569 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 20:57:58,571 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 20:57:58,619 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 20:57:58,623 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 20:57:58,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 20:57:58,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:57:58,626 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 20:57:58,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 20:57:58,628 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 [2022-12-13 20:57:58,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 20:57:58,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 20:57:58,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 20:57:58,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 20:57:58,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 20:57:58,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 20:57:58,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 20:57:58,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 20:57:58,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 20:57:58,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 20:57:58,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:57:58,648 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 20:57:58,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 20:57:58,650 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 [2022-12-13 20:57:58,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 20:57:58,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 20:57:58,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 20:57:58,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 20:57:58,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 20:57:58,663 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 20:57:58,663 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 20:57:58,666 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 20:57:58,672 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 20:57:58,672 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 20:57:58,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 20:57:58,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:57:58,713 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 20:57:58,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 20:57:58,714 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 20:57:58,714 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 20:57:58,715 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 20:57:58,715 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~tagbuf_len~0#1, ULTIMATE.start_main_~t~0#1) = 1*ULTIMATE.start_main_~tagbuf_len~0#1 - 1*ULTIMATE.start_main_~t~0#1 Supporting invariants [] [2022-12-13 20:57:58,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 20:57:58,721 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 20:57:58,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:57:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:57:58,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:57:58,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:57:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:57:58,768 WARN L261 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 20:57:58,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:57:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:57:58,878 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 [2022-12-13 20:57:58,880 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 68 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 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 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:57:58,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 20:57:59,090 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 68 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 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 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 207 states and 265 transitions. Complement of second has 11 states. [2022-12-13 20:57:59,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2022-12-13 20:57:59,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:57:59,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2022-12-13 20:57:59,099 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 191 transitions. Stem has 4 letters. Loop has 7 letters. [2022-12-13 20:57:59,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 20:57:59,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 191 transitions. Stem has 11 letters. Loop has 7 letters. [2022-12-13 20:57:59,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 20:57:59,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 191 transitions. Stem has 4 letters. Loop has 14 letters. [2022-12-13 20:57:59,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 20:57:59,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 207 states and 265 transitions. [2022-12-13 20:57:59,108 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 20:57:59,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 207 states to 0 states and 0 transitions. [2022-12-13 20:57:59,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 20:57:59,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 20:57:59,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 20:57:59,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:57:59,112 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 20:57:59,112 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 20:57:59,113 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 20:57:59,113 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 20:57:59,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 20:57:59,113 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 20:57:59,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 20:57:59,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 08:57:59 BoogieIcfgContainer [2022-12-13 20:57:59,119 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 20:57:59,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:57:59,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:57:59,120 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:57:59,120 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:57:58" (3/4) ... [2022-12-13 20:57:59,123 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:57:59,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:57:59,124 INFO L158 Benchmark]: Toolchain (without parser) took 1583.50ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 80.8MB in the beginning and 102.9MB in the end (delta: -22.1MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2022-12-13 20:57:59,124 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:57:59,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.85ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 70.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 20:57:59,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.23ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 68.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:57:59,125 INFO L158 Benchmark]: Boogie Preprocessor took 16.86ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 66.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:57:59,126 INFO L158 Benchmark]: RCFGBuilder took 245.33ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 53.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:57:59,126 INFO L158 Benchmark]: BuchiAutomizer took 1105.24ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 53.2MB in the beginning and 104.0MB in the end (delta: -50.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:57:59,127 INFO L158 Benchmark]: Witness Printer took 3.26ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:57:59,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.85ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 70.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.23ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 68.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.86ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 66.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 245.33ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 53.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 1105.24ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 53.2MB in the beginning and 104.0MB in the end (delta: -50.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.26ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.9MB in the end (delta: 1.0MB). 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 -1 * t + tagbuf_len and consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. 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, 73 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 158 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 110 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 48 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf96 smp73 dnf100 smp100 tf110 neg95 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 20:57:59,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf6d8d99-0962-4e79-bad4-68769a77905b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE