./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS --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 b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 --- 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-4e7fbc6 [2022-11-23 02:14:56,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:14:56,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:14:56,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:14:56,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:14:56,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:14:56,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:14:56,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:14:56,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:14:56,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:14:56,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:14:56,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:14:56,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:14:56,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:14:56,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:14:56,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:14:56,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:14:56,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:14:56,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:14:56,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:14:56,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:14:56,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:14:56,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:14:56,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:14:56,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:14:56,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:14:56,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:14:56,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:14:56,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:14:56,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:14:56,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:14:56,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:14:56,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:14:56,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:14:56,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:14:56,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:14:56,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:14:56,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:14:56,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:14:56,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:14:56,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:14:56,694 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-23 02:14:56,724 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:14:56,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:14:56,725 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:14:56,725 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:14:56,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:14:56,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:14:56,726 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:14:56,726 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-23 02:14:56,727 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-23 02:14:56,727 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-23 02:14:56,727 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-23 02:14:56,727 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-23 02:14:56,727 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-23 02:14:56,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:14:56,728 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:14:56,728 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:14:56,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:14:56,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:14:56,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:14:56,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-23 02:14:56,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-23 02:14:56,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-23 02:14:56,729 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:14:56,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:14:56,730 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-23 02:14:56,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:14:56,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-23 02:14:56,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:14:56,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:14:56,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:14:56,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:14:56,732 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-23 02:14:56,732 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_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 [2022-11-23 02:14:56,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:14:57,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:14:57,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:14:57,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:14:57,026 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:14:57,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2022-11-23 02:15:00,199 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:15:00,449 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:15:00,450 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2022-11-23 02:15:00,459 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/data/50f5ee48d/8a55f3a9b5054171aa207767adacdaf6/FLAG9a15419f6 [2022-11-23 02:15:00,484 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/data/50f5ee48d/8a55f3a9b5054171aa207767adacdaf6 [2022-11-23 02:15:00,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:15:00,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:15:00,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:15:00,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:15:00,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:15:00,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c830717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00, skipping insertion in model container [2022-11-23 02:15:00,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:15:00,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:15:00,698 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_f0de3f8c-7072-43ed-b654-e74b9354132f/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2022-11-23 02:15:00,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:15:00,743 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:15:00,757 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_f0de3f8c-7072-43ed-b654-e74b9354132f/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2022-11-23 02:15:00,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:15:00,783 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:15:00,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00 WrapperNode [2022-11-23 02:15:00,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:15:00,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:15:00,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:15:00,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:15:00,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,839 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 207 [2022-11-23 02:15:00,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:15:00,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:15:00,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:15:00,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:15:00,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,866 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:15:00,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:15:00,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:15:00,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:15:00,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00" (1/1) ... [2022-11-23 02:15:00,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:15:00,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:15:00,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:15:00,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-23 02:15:00,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:15:00,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:15:00,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:15:00,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:15:01,044 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:15:01,047 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:15:01,463 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:15:01,471 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:15:01,471 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 02:15:01,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:15:01 BoogieIcfgContainer [2022-11-23 02:15:01,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:15:01,475 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-23 02:15:01,476 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-23 02:15:01,480 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-23 02:15:01,481 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:15:01,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:15:00" (1/3) ... [2022-11-23 02:15:01,483 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a83af88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:15:01, skipping insertion in model container [2022-11-23 02:15:01,483 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:15:01,483 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:00" (2/3) ... [2022-11-23 02:15:01,484 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a83af88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:15:01, skipping insertion in model container [2022-11-23 02:15:01,484 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:15:01,484 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:15:01" (3/3) ... [2022-11-23 02:15:01,486 INFO L332 chiAutomizerObserver]: Analyzing ICFG apache-escape-absolute.i [2022-11-23 02:15:01,582 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-23 02:15:01,582 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-23 02:15:01,583 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-23 02:15:01,583 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-23 02:15:01,583 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-23 02:15:01,583 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-23 02:15:01,584 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-23 02:15:01,584 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-23 02:15:01,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 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) [2022-11-23 02:15:01,635 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 29 [2022-11-23 02:15:01,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:15:01,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:15:01,644 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:15:01,644 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-23 02:15:01,645 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-23 02:15:01,647 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 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) [2022-11-23 02:15:01,663 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 29 [2022-11-23 02:15:01,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:15:01,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:15:01,666 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:15:01,666 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-23 02:15:01,677 INFO L748 eck$LassoCheckResult]: Stem: 62#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); 50#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~pre6#1, main_#t~pre7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~pre10#1, main_#t~pre11#1, main_~scheme~0#1, main_~urilen~0#1, main_~tokenlen~0#1, main_~cp~0#1, main_~c~0#1;havoc main_~scheme~0#1;havoc main_~urilen~0#1;havoc main_~tokenlen~0#1;havoc main_~cp~0#1;havoc main_~c~0#1;main_~urilen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~tokenlen~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~scheme~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 26#L32true assume !!(main_~urilen~0#1 <= 1000000 && main_~urilen~0#1 >= -1000000); 25#L33true assume !!(main_~tokenlen~0#1 <= 1000000 && main_~tokenlen~0#1 >= -1000000); 34#L34true assume !!(main_~scheme~0#1 <= 1000000 && main_~scheme~0#1 >= -1000000); 60#L35true assume main_~urilen~0#1 > 0; 52#L35-1true assume main_~tokenlen~0#1 > 0; 65#L36true assume main_~scheme~0#1 >= 0; 68#L37true assume !(0 == main_~scheme~0#1 || main_~urilen~0#1 - 1 < main_~scheme~0#1);main_~cp~0#1 := main_~scheme~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~cp~0#1 - 1 < main_~urilen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 31#L18true assume !(0 == __VERIFIER_assert_~cond#1); 56#L18-2true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~cp~0#1 - 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 58#L18-3true assume !(0 == __VERIFIER_assert_~cond#1); 3#L18-5true assume { :end_inline___VERIFIER_assert } true; 45#L44true assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~cp~0#1 < main_~urilen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 57#L18-6true assume !(0 == __VERIFIER_assert_~cond#1); 51#L18-8true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~cp~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 70#L18-9true assume !(0 == __VERIFIER_assert_~cond#1); 35#L18-11true assume { :end_inline___VERIFIER_assert } true; 59#L47-2true [2022-11-23 02:15:01,681 INFO L750 eck$LassoCheckResult]: Loop: 59#L47-2true assume !!(main_~cp~0#1 != main_~urilen~0#1 - 1); 20#L48true assume !(0 != main_#t~nondet5#1);havoc main_#t~nondet5#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~cp~0#1 < main_~urilen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 10#L18-12true assume !(0 == __VERIFIER_assert_~cond#1); 28#L18-14true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~cp~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 23#L18-15true assume !(0 == __VERIFIER_assert_~cond#1); 37#L18-17true assume { :end_inline___VERIFIER_assert } true;main_#t~pre6#1 := 1 + main_~cp~0#1;main_~cp~0#1 := 1 + main_~cp~0#1;havoc main_#t~pre6#1; 59#L47-2true [2022-11-23 02:15:01,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:15:01,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1239436696, now seen corresponding path program 1 times [2022-11-23 02:15:01,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:15:01,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628498651] [2022-11-23 02:15:01,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:15:01,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:15:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:15:01,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:15:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:15:01,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:15:01,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:15:01,891 INFO L85 PathProgramCache]: Analyzing trace with hash -680795444, now seen corresponding path program 1 times [2022-11-23 02:15:01,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:15:01,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780185326] [2022-11-23 02:15:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:15:01,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:15:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:15:01,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:15:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:15:01,935 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:15:01,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:15:01,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1742738445, now seen corresponding path program 1 times [2022-11-23 02:15:01,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:15:01,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729730492] [2022-11-23 02:15:01,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:15:01,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:15:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:15:01,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:15:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:15:02,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:15:02,238 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:15:02,239 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:15:02,239 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:15:02,239 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:15:02,239 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:15:02,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:15:02,240 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:15:02,240 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:15:02,240 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2022-11-23 02:15:02,240 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:15:02,241 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:15:02,261 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:15:02,294 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:15:02,297 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:15:02,308 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:15:02,417 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:15:02,418 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:15:02,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:15:02,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:15:02,427 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:15:02,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:15:02,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:15:02,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-23 02:15:02,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:15:02,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:15:02,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:15:02,478 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:15:02,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:15:02,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:15:02,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-23 02:15:02,552 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:15:02,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-23 02:15:02,563 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:15:02,563 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:15:02,563 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:15:02,564 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:15:02,564 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:15:02,564 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:15:02,564 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:15:02,564 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:15:02,564 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2022-11-23 02:15:02,564 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:15:02,565 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:15:02,566 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:15:02,589 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:15:02,594 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:15:02,602 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:15:02,718 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:15:02,723 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:15:02,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:15:02,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:15:02,733 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:15:02,746 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 [2022-11-23 02:15:02,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-23 02:15:02,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:15:02,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:15:02,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:15:02,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:15:02,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:15:02,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:15:02,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:15:02,792 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:15:02,800 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:15:02,800 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:15:02,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:15:02,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:15:02,826 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:15:02,833 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:15:02,833 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:15:02,834 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:15:02,835 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~cp~0#1, ULTIMATE.start_main_~urilen~0#1) = -1*ULTIMATE.start_main_~cp~0#1 + 1*ULTIMATE.start_main_~urilen~0#1 Supporting invariants [] [2022-11-23 02:15:02,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-23 02:15:02,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-23 02:15:02,842 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:15:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:15:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:15:02,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:15:02,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:15:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:15:02,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 02:15:02,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:15:03,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:15:03,188 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-23 02:15:03,192 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 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 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-11-23 02:15:03,466 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 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 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 215 states and 287 transitions. Complement of second has 11 states. [2022-11-23 02:15:03,469 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 [2022-11-23 02:15:03,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-11-23 02:15:03,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 215 transitions. [2022-11-23 02:15:03,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 215 transitions. Stem has 18 letters. Loop has 6 letters. [2022-11-23 02:15:03,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:15:03,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 215 transitions. Stem has 24 letters. Loop has 6 letters. [2022-11-23 02:15:03,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:15:03,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 215 transitions. Stem has 18 letters. Loop has 12 letters. [2022-11-23 02:15:03,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:15:03,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 287 transitions. [2022-11-23 02:15:03,487 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 02:15:03,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 0 states and 0 transitions. [2022-11-23 02:15:03,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-23 02:15:03,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-23 02:15:03,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-23 02:15:03,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:15:03,493 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:15:03,493 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:15:03,493 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:15:03,494 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-23 02:15:03,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-23 02:15:03,494 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 02:15:03,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-23 02:15:03,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:15:03 BoogieIcfgContainer [2022-11-23 02:15:03,503 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-23 02:15:03,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:15:03,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:15:03,531 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:15:03,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:15:01" (3/4) ... [2022-11-23 02:15:03,535 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 02:15:03,535 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:15:03,536 INFO L158 Benchmark]: Toolchain (without parser) took 3047.89ms. Allocated memory is still 132.1MB. Free memory was 93.4MB in the beginning and 102.6MB in the end (delta: -9.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:15:03,537 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:15:03,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-23 02:15:03,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.98ms. Allocated memory is still 132.1MB. Free memory was 93.1MB in the beginning and 82.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 02:15:03,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.13ms. Allocated memory is still 132.1MB. Free memory was 82.0MB in the beginning and 80.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:15:03,546 INFO L158 Benchmark]: Boogie Preprocessor took 30.52ms. Allocated memory is still 132.1MB. Free memory was 80.2MB in the beginning and 78.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:15:03,547 INFO L158 Benchmark]: RCFGBuilder took 603.33ms. Allocated memory is still 132.1MB. Free memory was 78.4MB in the beginning and 63.6MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 02:15:03,548 INFO L158 Benchmark]: BuchiAutomizer took 2027.43ms. Allocated memory is still 132.1MB. Free memory was 63.6MB in the beginning and 46.2MB in the end (delta: 17.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2022-11-23 02:15:03,548 INFO L158 Benchmark]: Witness Printer took 5.27ms. Allocated memory is still 132.1MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:15:03,552 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.98ms. Allocated memory is still 132.1MB. Free memory was 93.1MB in the beginning and 82.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.13ms. Allocated memory is still 132.1MB. Free memory was 82.0MB in the beginning and 80.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.52ms. Allocated memory is still 132.1MB. Free memory was 80.2MB in the beginning and 78.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 603.33ms. Allocated memory is still 132.1MB. Free memory was 78.4MB in the beginning and 63.6MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2027.43ms. Allocated memory is still 132.1MB. Free memory was 63.6MB in the beginning and 46.2MB in the end (delta: 17.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Witness Printer took 5.27ms. Allocated memory is still 132.1MB. Free memory is still 102.6MB. 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 * cp + urilen and consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.1s. 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, 153 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 152 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 62 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital28 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf96 smp69 dnf100 smp100 tf109 neg95 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 109ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 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! [2022-11-23 02:15:03,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de3f8c-7072-43ed-b654-e74b9354132f/bin/uautomizer-QkZJyEgLgS/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