./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 e04fb08f 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_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 12:38:55,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:38:55,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:38:55,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:38:55,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:38:55,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:38:55,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:38:55,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:38:55,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:38:55,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:38:55,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:38:55,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:38:55,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:38:55,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:38:55,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:38:55,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:38:55,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:38:55,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:38:55,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:38:55,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:38:55,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:38:55,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:38:55,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:38:55,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:38:55,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:38:55,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:38:55,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:38:55,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:38:55,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:38:55,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:38:55,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:38:55,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:38:55,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:38:55,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:38:55,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:38:55,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:38:55,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:38:55,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:38:55,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:38:55,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:38:55,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:38:55,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 12:38:55,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:38:55,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:38:55,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:38:55,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:38:55,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:38:55,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:38:55,315 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:38:55,315 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 12:38:55,315 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 12:38:55,315 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 12:38:55,317 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 12:38:55,317 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 12:38:55,317 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 12:38:55,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:38:55,318 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:38:55,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:38:55,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:38:55,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:38:55,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:38:55,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 12:38:55,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 12:38:55,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 12:38:55,320 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:38:55,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:38:55,320 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 12:38:55,321 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:38:55,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 12:38:55,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:38:55,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:38:55,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:38:55,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:38:55,323 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 12:38:55,324 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_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 [2022-11-16 12:38:55,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:38:55,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:38:55,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:38:55,670 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:38:55,675 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:38:55,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2022-11-16 12:38:55,758 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/data/049e731fa/0d2f74f30d45442fbc5aae3a5b9e76a8/FLAG99624d0e8 [2022-11-16 12:38:56,265 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:38:56,270 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2022-11-16 12:38:56,279 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/data/049e731fa/0d2f74f30d45442fbc5aae3a5b9e76a8/FLAG99624d0e8 [2022-11-16 12:38:56,610 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/data/049e731fa/0d2f74f30d45442fbc5aae3a5b9e76a8 [2022-11-16 12:38:56,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:38:56,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:38:56,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:38:56,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:38:56,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:38:56,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:56,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c247c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56, skipping insertion in model container [2022-11-16 12:38:56,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:56,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:38:56,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:38:56,884 WARN L229 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_e85bba75-e512-4973-a915-a9bfde22d11c/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2022-11-16 12:38:56,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:38:56,931 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:38:56,947 WARN L229 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_e85bba75-e512-4973-a915-a9bfde22d11c/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2022-11-16 12:38:56,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:38:56,995 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:38:56,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56 WrapperNode [2022-11-16 12:38:56,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:38:56,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:38:56,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:38:56,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:38:57,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:57,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:57,057 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 207 [2022-11-16 12:38:57,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:38:57,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:38:57,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:38:57,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:38:57,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:57,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:57,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:57,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:57,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:57,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:57,097 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:57,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:57,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:38:57,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:38:57,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:38:57,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:38:57,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56" (1/1) ... [2022-11-16 12:38:57,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:38:57,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:57,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:38:57,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 12:38:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:38:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:38:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:38:57,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:38:57,260 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:38:57,263 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:38:57,626 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:38:57,641 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:38:57,643 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:38:57,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:57 BoogieIcfgContainer [2022-11-16 12:38:57,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:38:57,647 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 12:38:57,648 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 12:38:57,652 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 12:38:57,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:38:57,653 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:38:56" (1/3) ... [2022-11-16 12:38:57,655 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51e67372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:38:57, skipping insertion in model container [2022-11-16 12:38:57,656 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:38:57,656 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:38:56" (2/3) ... [2022-11-16 12:38:57,656 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51e67372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:38:57, skipping insertion in model container [2022-11-16 12:38:57,656 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:38:57,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:57" (3/3) ... [2022-11-16 12:38:57,658 INFO L332 chiAutomizerObserver]: Analyzing ICFG apache-escape-absolute.i [2022-11-16 12:38:57,736 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 12:38:57,736 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 12:38:57,737 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 12:38:57,737 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 12:38:57,737 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 12:38:57,737 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 12:38:57,737 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 12:38:57,737 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 12:38:57,742 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) [2022-11-16 12:38:57,777 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 29 [2022-11-16 12:38:57,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:38:57,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:38:57,787 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:57,787 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-16 12:38:57,788 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 12:38:57,789 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) [2022-11-16 12:38:57,806 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 29 [2022-11-16 12:38:57,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:38:57,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:38:57,807 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:38:57,808 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-16 12:38:57,816 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 [2022-11-16 12:38:57,817 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 [2022-11-16 12:38:57,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:57,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1239436696, now seen corresponding path program 1 times [2022-11-16 12:38:57,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:57,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865869873] [2022-11-16 12:38:57,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:57,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:38:57,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:38:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:38:58,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:38:58,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:58,052 INFO L85 PathProgramCache]: Analyzing trace with hash -680795444, now seen corresponding path program 1 times [2022-11-16 12:38:58,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:58,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546344071] [2022-11-16 12:38:58,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:58,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:38:58,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:38:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:38:58,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:38:58,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:58,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1742738445, now seen corresponding path program 1 times [2022-11-16 12:38:58,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:38:58,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364810973] [2022-11-16 12:38:58,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:38:58,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:38:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:38:58,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:38:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:38:58,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:38:58,343 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:38:58,344 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:38:58,344 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:38:58,344 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:38:58,344 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:38:58,344 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:38:58,345 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:38:58,345 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:38:58,345 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2022-11-16 12:38:58,345 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:38:58,345 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:38:58,360 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:38:58,378 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:38:58,381 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:38:58,384 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:38:58,462 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:38:58,463 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:38:58,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:38:58,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:58,470 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:38:58,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:38:58,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:38:58,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 12:38:58,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:38:58,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:38:58,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:58,506 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:38:58,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:38:58,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:38:58,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 12:38:58,568 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:38:58,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:38:58,576 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:38:58,576 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:38:58,576 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:38:58,576 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:38:58,576 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:38:58,576 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:38:58,576 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:38:58,577 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:38:58,577 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2022-11-16 12:38:58,577 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:38:58,577 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:38:58,578 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:38:58,594 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:38:58,597 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:38:58,603 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:38:58,697 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:38:58,701 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:38:58,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:38:58,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:58,712 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:38:58,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 12:38:58,719 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 [2022-11-16 12:38:58,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:38:58,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:38:58,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:38:58,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:38:58,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:38:58,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:38:58,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:38:58,738 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:38:58,747 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 12:38:58,748 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 12:38:58,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:38:58,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:38:58,754 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:38:58,757 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:38:58,757 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:38:58,757 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:38:58,758 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 [] [2022-11-16 12:38:58,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 12:38:58,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:38:58,770 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:38:58,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:38:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:58,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:38:58,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:38:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:38:58,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:38:58,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:38:59,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:38:59,054 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 [2022-11-16 12:38:59,056 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) [2022-11-16 12:38:59,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:38:59,350 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. [2022-11-16 12:38:59,352 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 [2022-11-16 12:38:59,356 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) [2022-11-16 12:38:59,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 215 transitions. [2022-11-16 12:38:59,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 215 transitions. Stem has 18 letters. Loop has 6 letters. [2022-11-16 12:38:59,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:38:59,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 215 transitions. Stem has 24 letters. Loop has 6 letters. [2022-11-16 12:38:59,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:38:59,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 215 transitions. Stem has 18 letters. Loop has 12 letters. [2022-11-16 12:38:59,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:38:59,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 287 transitions. [2022-11-16 12:38:59,367 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:38:59,369 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 0 states and 0 transitions. [2022-11-16 12:38:59,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 12:38:59,370 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 12:38:59,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 12:38:59,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:38:59,371 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:38:59,371 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:38:59,371 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:38:59,372 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 12:38:59,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:38:59,372 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:38:59,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 12:38:59,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:38:59 BoogieIcfgContainer [2022-11-16 12:38:59,381 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 12:38:59,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:38:59,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:38:59,383 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:38:59,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:38:57" (3/4) ... [2022-11-16 12:38:59,391 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:38:59,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:38:59,392 INFO L158 Benchmark]: Toolchain (without parser) took 2772.77ms. Allocated memory is still 140.5MB. Free memory was 105.7MB in the beginning and 107.8MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:38:59,393 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory was 68.0MB in the beginning and 68.0MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:38:59,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.94ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 115.6MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:38:59,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.67ms. Allocated memory is still 140.5MB. Free memory was 115.6MB in the beginning and 113.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:38:59,396 INFO L158 Benchmark]: Boogie Preprocessor took 42.41ms. Allocated memory is still 140.5MB. Free memory was 113.5MB in the beginning and 112.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:38:59,400 INFO L158 Benchmark]: RCFGBuilder took 545.40ms. Allocated memory is still 140.5MB. Free memory was 112.2MB in the beginning and 97.2MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:38:59,401 INFO L158 Benchmark]: BuchiAutomizer took 1734.21ms. Allocated memory is still 140.5MB. Free memory was 97.2MB in the beginning and 107.8MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:38:59,402 INFO L158 Benchmark]: Witness Printer took 7.87ms. Allocated memory is still 140.5MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:38:59,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory was 68.0MB in the beginning and 68.0MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.94ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 115.6MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.67ms. Allocated memory is still 140.5MB. Free memory was 115.6MB in the beginning and 113.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.41ms. Allocated memory is still 140.5MB. Free memory was 113.5MB in the beginning and 112.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 545.40ms. Allocated memory is still 140.5MB. Free memory was 112.2MB in the beginning and 97.2MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 1734.21ms. Allocated memory is still 140.5MB. Free memory was 97.2MB in the beginning and 107.8MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.87ms. Allocated memory is still 140.5MB. Free memory is still 107.8MB. 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 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. 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, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 152 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.2s 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: 54ms 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! [2022-11-16 12:38:59,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e85bba75-e512-4973-a915-a9bfde22d11c/bin/uautomizer-tPACEb0tL8/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