./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a 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_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --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 bfd8ca9d9dda86f57445168715d124831c95b647e7c1b1093bb129b0384cce9e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:41,064 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:41,162 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:12:41,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:41,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:41,196 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:41,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:41,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:41,199 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:12:41,200 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:12:41,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:41,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:41,202 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:41,203 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:12:41,205 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:12:41,205 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:12:41,206 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:12:41,206 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:12:41,206 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:12:41,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:41,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:12:41,211 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:12:41,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:12:41,212 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:12:41,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:41,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:12:41,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:12:41,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:12:41,215 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:41,215 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:12:41,216 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:12:41,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:12:41,216 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:12:41,217 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:41,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:41,219 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:41,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:41,219 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:12:41,220 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:12:41,220 INFO L153 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_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfd8ca9d9dda86f57445168715d124831c95b647e7c1b1093bb129b0384cce9e [2024-10-31 22:12:41,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:41,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:41,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:41,573 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:41,574 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:41,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i Unable to find full path for "g++" [2024-10-31 22:12:43,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:44,232 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:44,232 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/sv-benchmarks/c/array-memsafety/cstrcat-alloca-2.i [2024-10-31 22:12:44,259 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/data/f1d8995d7/5c56698484ca4c22b61c45ee18f05775/FLAG210da7e17 [2024-10-31 22:12:44,281 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/data/f1d8995d7/5c56698484ca4c22b61c45ee18f05775 [2024-10-31 22:12:44,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:44,288 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:44,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:44,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:44,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:44,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3306928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44, skipping insertion in model container [2024-10-31 22:12:44,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:44,362 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:44,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:44,909 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:44,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:44,987 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:44,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44 WrapperNode [2024-10-31 22:12:44,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:44,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:44,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:44,989 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:44,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:45,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:45,030 INFO L138 Inliner]: procedures = 117, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2024-10-31 22:12:45,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:45,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:45,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:45,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:45,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:45,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:45,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:45,063 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [3, 4]. 57 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0]. The 5 writes are split as follows [2, 3]. [2024-10-31 22:12:45,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:45,064 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:45,071 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:45,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:45,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:45,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:45,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:45,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:45,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:45,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:45,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (1/1) ... [2024-10-31 22:12:45,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:45,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:45,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:45,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:45,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:12:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:12:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:12:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:12:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:12:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:12:45,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:45,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:45,265 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:45,267 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:45,478 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-10-31 22:12:45,479 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:45,490 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:45,491 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:12:45,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:45 BoogieIcfgContainer [2024-10-31 22:12:45,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:45,492 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:12:45,492 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:12:45,497 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:12:45,497 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:12:45,498 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:12:44" (1/3) ... [2024-10-31 22:12:45,499 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22eeb57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:12:45, skipping insertion in model container [2024-10-31 22:12:45,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:12:45,499 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:44" (2/3) ... [2024-10-31 22:12:45,499 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22eeb57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:12:45, skipping insertion in model container [2024-10-31 22:12:45,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:12:45,499 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:45" (3/3) ... [2024-10-31 22:12:45,501 INFO L332 chiAutomizerObserver]: Analyzing ICFG cstrcat-alloca-2.i [2024-10-31 22:12:45,560 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:12:45,560 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:12:45,560 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:12:45,560 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:12:45,560 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:12:45,561 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:12:45,561 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:12:45,561 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:12:45,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 states have internal predecessors, (32), 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) [2024-10-31 22:12:45,580 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2024-10-31 22:12:45,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:12:45,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:12:45,585 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:12:45,585 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:12:45,585 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:12:45,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 states have internal predecessors, (32), 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) [2024-10-31 22:12:45,587 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2024-10-31 22:12:45,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:12:45,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:12:45,588 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:12:45,588 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:12:45,595 INFO L745 eck$LassoCheckResult]: Stem: 17#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet12#1, main_#t~post13#1, main_~i~0#1, main_#t~nondet14#1, main_#t~post15#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet7#1;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 11#L527true assume !(main_~length1~0#1 < 1); 14#L527-2true assume !(main_~length2~0#1 < 2); 15#L530-1true assume !(main_~length3~0#1 < 1); 10#L533-1true assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 7#L540-3true [2024-10-31 22:12:45,596 INFO L747 eck$LassoCheckResult]: Loop: 7#L540-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);havoc main_#t~nondet12#1;call write~int#0(main_#t~nondet12#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet12#1; 13#L540-2true main_#t~post13#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post13#1;havoc main_#t~post13#1; 7#L540-3true [2024-10-31 22:12:45,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2024-10-31 22:12:45,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:45,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517352569] [2024-10-31 22:12:45,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:45,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:45,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:45,780 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:45,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:45,783 INFO L85 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2024-10-31 22:12:45,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:45,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58087345] [2024-10-31 22:12:45,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:45,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:45,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:45,806 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:45,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:45,810 INFO L85 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2024-10-31 22:12:45,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:45,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220026995] [2024-10-31 22:12:45,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:45,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:45,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:45,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:46,439 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:12:46,439 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:12:46,440 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:12:46,440 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:12:46,440 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:12:46,440 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:46,440 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:12:46,440 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:12:46,441 INFO L132 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration1_Lasso [2024-10-31 22:12:46,441 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:12:46,441 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:12:46,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,786 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,794 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,797 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,808 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,817 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,835 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,840 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,844 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,848 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:46,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:47,356 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:12:47,361 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:12:47,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:47,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:47,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:47,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:12:47,372 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 [2024-10-31 22:12:47,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:47,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:12:47,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:47,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:47,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:47,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:12:47,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:12:47,393 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:47,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:12:47,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:47,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:47,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:47,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:12:47,420 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 [2024-10-31 22:12:47,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:47,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:47,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:47,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:47,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:12:47,462 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:12:47,493 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:12:47,531 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2024-10-31 22:12:47,531 INFO L444 ModelExtractionUtils]: 7 out of 28 variables were initially zero. Simplification set additionally 18 variables to zero. [2024-10-31 22:12:47,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:47,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:47,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:47,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:12:47,549 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:12:47,565 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-31 22:12:47,565 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:12:47,566 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~length1~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-10-31 22:12:47,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:12:47,611 INFO L156 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2024-10-31 22:12:47,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:47,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:12:47,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:47,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:12:47,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:47,779 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:12:47,782 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 states have internal predecessors, (32), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-10-31 22:12:47,848 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 states have internal predecessors, (32), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 39 states and 57 transitions. Complement of second has 6 states. [2024-10-31 22:12:47,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:12:47,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-10-31 22:12:47,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2024-10-31 22:12:47,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-31 22:12:47,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:12:47,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 8 letters. Loop has 2 letters. [2024-10-31 22:12:47,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:12:47,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-31 22:12:47,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:12:47,867 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 57 transitions. [2024-10-31 22:12:47,872 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2024-10-31 22:12:47,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 17 states and 26 transitions. [2024-10-31 22:12:47,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-10-31 22:12:47,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-10-31 22:12:47,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2024-10-31 22:12:47,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:12:47,882 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2024-10-31 22:12:47,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2024-10-31 22:12:47,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-31 22:12:47,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 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) [2024-10-31 22:12:47,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2024-10-31 22:12:47,915 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2024-10-31 22:12:47,917 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2024-10-31 22:12:47,917 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:12:47,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2024-10-31 22:12:47,919 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2024-10-31 22:12:47,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:12:47,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:12:47,920 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:47,921 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:12:47,921 INFO L745 eck$LassoCheckResult]: Stem: 148#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 141#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet12#1, main_#t~post13#1, main_~i~0#1, main_#t~nondet14#1, main_#t~post15#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet7#1;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 142#L527 assume !(main_~length1~0#1 < 1); 146#L527-2 assume !(main_~length2~0#1 < 2); 147#L530-1 assume !(main_~length3~0#1 < 1); 145#L533-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 137#L540-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 139#L540-4 havoc main_~i~0#1;main_~i~1#1 := 0; 132#L545-3 [2024-10-31 22:12:47,921 INFO L747 eck$LassoCheckResult]: Loop: 132#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);havoc main_#t~nondet14#1;call write~int#1(main_#t~nondet14#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet14#1; 134#L545-2 main_#t~post15#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post15#1;havoc main_#t~post15#1; 132#L545-3 [2024-10-31 22:12:47,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:47,923 INFO L85 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2024-10-31 22:12:47,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:47,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143662126] [2024-10-31 22:12:47,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:47,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:47,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:47,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:47,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:47,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2024-10-31 22:12:47,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:47,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263994689] [2024-10-31 22:12:47,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:47,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:48,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:48,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:48,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:48,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1713495129, now seen corresponding path program 1 times [2024-10-31 22:12:48,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:48,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799017371] [2024-10-31 22:12:48,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:48,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:48,059 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:48,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:48,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:12:48,473 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:12:48,474 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:12:48,474 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:12:48,474 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:12:48,476 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:12:48,476 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:48,476 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:12:48,476 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:12:48,476 INFO L132 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration2_Lasso [2024-10-31 22:12:48,477 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:12:48,477 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:12:48,481 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,753 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,768 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,773 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,788 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,797 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,811 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:48,815 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:49,185 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:12:49,185 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:12:49,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:49,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:49,188 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:49,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:12:49,193 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 [2024-10-31 22:12:49,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:49,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:12:49,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:49,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:49,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:49,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:12:49,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:12:49,212 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:49,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 22:12:49,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:49,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:49,236 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:49,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:12:49,239 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 [2024-10-31 22:12:49,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:49,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:49,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:49,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:49,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:12:49,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:12:49,276 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:49,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 22:12:49,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:49,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:49,299 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:49,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:12:49,316 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 [2024-10-31 22:12:49,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:49,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:12:49,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:49,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:49,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:49,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:12:49,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:12:49,334 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:49,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:12:49,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:49,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:49,357 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:49,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:12:49,359 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 [2024-10-31 22:12:49,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:49,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:49,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:49,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:49,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:12:49,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:12:49,382 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:49,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:12:49,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:49,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:49,404 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:49,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:12:49,407 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 [2024-10-31 22:12:49,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:49,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:49,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:49,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:49,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:12:49,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:12:49,431 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:49,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:12:49,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:49,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:49,453 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:49,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:12:49,455 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 [2024-10-31 22:12:49,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:49,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:49,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:49,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:49,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:12:49,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:12:49,496 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:12:49,540 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2024-10-31 22:12:49,540 INFO L444 ModelExtractionUtils]: 3 out of 22 variables were initially zero. Simplification set additionally 16 variables to zero. [2024-10-31 22:12:49,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:49,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:49,542 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:49,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:12:49,545 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:12:49,561 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-31 22:12:49,562 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:12:49,562 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, ULTIMATE.start_main_~length2~0#1) = -1*ULTIMATE.start_main_~i~1#1 + 1*ULTIMATE.start_main_~length2~0#1 Supporting invariants [] [2024-10-31 22:12:49,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:12:49,606 INFO L156 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2024-10-31 22:12:49,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:49,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:12:49,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:49,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:12:49,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:49,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:49,690 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:12:49,691 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-31 22:12:49,724 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 24 states and 38 transitions. Complement of second has 6 states. [2024-10-31 22:12:49,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:12:49,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-31 22:12:49,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2024-10-31 22:12:49,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 8 letters. Loop has 2 letters. [2024-10-31 22:12:49,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:12:49,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 10 letters. Loop has 2 letters. [2024-10-31 22:12:49,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:12:49,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 8 letters. Loop has 4 letters. [2024-10-31 22:12:49,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:12:49,730 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 38 transitions. [2024-10-31 22:12:49,732 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-10-31 22:12:49,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 18 states and 27 transitions. [2024-10-31 22:12:49,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-31 22:12:49,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-31 22:12:49,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 27 transitions. [2024-10-31 22:12:49,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:12:49,735 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 27 transitions. [2024-10-31 22:12:49,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 27 transitions. [2024-10-31 22:12:49,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-10-31 22:12:49,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 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) [2024-10-31 22:12:49,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2024-10-31 22:12:49,739 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 27 transitions. [2024-10-31 22:12:49,739 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2024-10-31 22:12:49,739 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:12:49,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2024-10-31 22:12:49,740 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-10-31 22:12:49,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:12:49,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:12:49,741 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:49,742 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:12:49,742 INFO L745 eck$LassoCheckResult]: Stem: 265#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 260#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet12#1, main_#t~post13#1, main_~i~0#1, main_#t~nondet14#1, main_#t~post15#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet7#1;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 261#L527 assume !(main_~length1~0#1 < 1); 263#L527-2 assume !(main_~length2~0#1 < 2); 264#L530-1 assume !(main_~length3~0#1 < 1); 262#L533-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 254#L540-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 256#L540-4 havoc main_~i~0#1;main_~i~1#1 := 0; 248#L545-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 249#L545-4 havoc main_~i~1#1;call write~int#0(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int#1(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length3~0#1 - 1), 1);assume { :begin_inline_cstrcat } true;cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset, cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrcat_#res#1.base, cstrcat_#res#1.offset;havoc cstrcat_#t~mem2#1, cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, cstrcat_#t~mem6#1, cstrcat_~s1#1.base, cstrcat_~s1#1.offset, cstrcat_~s2#1.base, cstrcat_~s2#1.offset, cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s1#1.base, cstrcat_~s1#1.offset := cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset;cstrcat_~s2#1.base, cstrcat_~s2#1.offset := cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_~s1#1.base, cstrcat_~s1#1.offset; 259#L517-3 [2024-10-31 22:12:49,742 INFO L747 eck$LassoCheckResult]: Loop: 259#L517-3 call cstrcat_#t~mem2#1 := read~int#1(cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset, 1); 258#L517-1 assume !!(0 != cstrcat_#t~mem2#1);havoc cstrcat_#t~mem2#1;cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset := cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_#t~post3#1.base, 1 + cstrcat_#t~post3#1.offset; 259#L517-3 [2024-10-31 22:12:49,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:49,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1713495071, now seen corresponding path program 1 times [2024-10-31 22:12:49,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:49,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091490540] [2024-10-31 22:12:49,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:49,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:49,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:49,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:49,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091490540] [2024-10-31 22:12:49,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091490540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:49,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:49,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:12:49,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498452017] [2024-10-31 22:12:49,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:49,936 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:12:49,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:49,937 INFO L85 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 1 times [2024-10-31 22:12:49,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:49,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413057135] [2024-10-31 22:12:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:49,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:49,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:49,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:50,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:50,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:50,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:50,038 INFO L87 Difference]: Start difference. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-31 22:12:50,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:50,066 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2024-10-31 22:12:50,066 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2024-10-31 22:12:50,067 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-10-31 22:12:50,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 26 transitions. [2024-10-31 22:12:50,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-10-31 22:12:50,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-31 22:12:50,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2024-10-31 22:12:50,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:12:50,070 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 26 transitions. [2024-10-31 22:12:50,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2024-10-31 22:12:50,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-10-31 22:12:50,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 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) [2024-10-31 22:12:50,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2024-10-31 22:12:50,074 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2024-10-31 22:12:50,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:50,076 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2024-10-31 22:12:50,077 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:12:50,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2024-10-31 22:12:50,077 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-10-31 22:12:50,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:12:50,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:12:50,080 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:50,080 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:12:50,080 INFO L745 eck$LassoCheckResult]: Stem: 309#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 300#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet12#1, main_#t~post13#1, main_~i~0#1, main_#t~nondet14#1, main_#t~post15#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet7#1;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 301#L527 assume !(main_~length1~0#1 < 1); 307#L527-2 assume !(main_~length2~0#1 < 2); 308#L530-1 assume !(main_~length3~0#1 < 1); 306#L533-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 302#L540-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 304#L540-4 havoc main_~i~0#1;main_~i~1#1 := 0; 292#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);havoc main_#t~nondet14#1;call write~int#1(main_#t~nondet14#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet14#1; 293#L545-2 main_#t~post15#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post15#1;havoc main_#t~post15#1; 294#L545-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 295#L545-4 havoc main_~i~1#1;call write~int#0(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int#1(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length3~0#1 - 1), 1);assume { :begin_inline_cstrcat } true;cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset, cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrcat_#res#1.base, cstrcat_#res#1.offset;havoc cstrcat_#t~mem2#1, cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, cstrcat_#t~mem6#1, cstrcat_~s1#1.base, cstrcat_~s1#1.offset, cstrcat_~s2#1.base, cstrcat_~s2#1.offset, cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s1#1.base, cstrcat_~s1#1.offset := cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset;cstrcat_~s2#1.base, cstrcat_~s2#1.offset := cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_~s1#1.base, cstrcat_~s1#1.offset; 299#L517-3 [2024-10-31 22:12:50,080 INFO L747 eck$LassoCheckResult]: Loop: 299#L517-3 call cstrcat_#t~mem2#1 := read~int#1(cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset, 1); 298#L517-1 assume !!(0 != cstrcat_#t~mem2#1);havoc cstrcat_#t~mem2#1;cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset := cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_#t~post3#1.base, 1 + cstrcat_#t~post3#1.offset; 299#L517-3 [2024-10-31 22:12:50,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:50,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1696346049, now seen corresponding path program 1 times [2024-10-31 22:12:50,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:50,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536525202] [2024-10-31 22:12:50,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:50,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:50,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:50,143 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:50,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:50,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 2 times [2024-10-31 22:12:50,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:50,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963916344] [2024-10-31 22:12:50,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:50,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:50,153 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:50,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:50,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:50,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1899017530, now seen corresponding path program 1 times [2024-10-31 22:12:50,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:50,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003614038] [2024-10-31 22:12:50,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:50,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:50,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:50,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:50,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003614038] [2024-10-31 22:12:50,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003614038] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:50,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830190164] [2024-10-31 22:12:50,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:50,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:50,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:50,631 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:50,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-31 22:12:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:50,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-31 22:12:50,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:50,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:12:50,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:12:50,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:50,924 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:12:50,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2024-10-31 22:12:50,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2024-10-31 22:12:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:51,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830190164] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:12:51,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:12:51,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-10-31 22:12:51,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564895671] [2024-10-31 22:12:51,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:12:51,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:51,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:12:51,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:12:51,166 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand has 18 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 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) [2024-10-31 22:12:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:51,593 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2024-10-31 22:12:51,594 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 48 transitions. [2024-10-31 22:12:51,595 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-10-31 22:12:51,595 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 48 transitions. [2024-10-31 22:12:51,595 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-10-31 22:12:51,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-10-31 22:12:51,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 48 transitions. [2024-10-31 22:12:51,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:12:51,596 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 48 transitions. [2024-10-31 22:12:51,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 48 transitions. [2024-10-31 22:12:51,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2024-10-31 22:12:51,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 30 states have internal predecessors, (42), 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) [2024-10-31 22:12:51,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2024-10-31 22:12:51,601 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 42 transitions. [2024-10-31 22:12:51,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-31 22:12:51,602 INFO L425 stractBuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2024-10-31 22:12:51,602 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:12:51,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 42 transitions. [2024-10-31 22:12:51,603 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-10-31 22:12:51,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:12:51,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:12:51,604 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:51,604 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:12:51,604 INFO L745 eck$LassoCheckResult]: Stem: 484#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 474#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet12#1, main_#t~post13#1, main_~i~0#1, main_#t~nondet14#1, main_#t~post15#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet7#1;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 475#L527 assume !(main_~length1~0#1 < 1); 481#L527-2 assume !(main_~length2~0#1 < 2); 482#L530-1 assume main_~length3~0#1 < 1;main_~length3~0#1 := 1; 480#L533-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 476#L540-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 478#L540-4 havoc main_~i~0#1;main_~i~1#1 := 0; 467#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);havoc main_#t~nondet14#1;call write~int#1(main_#t~nondet14#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet14#1; 468#L545-2 main_#t~post15#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post15#1;havoc main_#t~post15#1; 469#L545-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 470#L545-4 havoc main_~i~1#1;call write~int#0(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int#1(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length3~0#1 - 1), 1);assume { :begin_inline_cstrcat } true;cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset, cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrcat_#res#1.base, cstrcat_#res#1.offset;havoc cstrcat_#t~mem2#1, cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, cstrcat_#t~mem6#1, cstrcat_~s1#1.base, cstrcat_~s1#1.offset, cstrcat_~s2#1.base, cstrcat_~s2#1.offset, cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s1#1.base, cstrcat_~s1#1.offset := cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset;cstrcat_~s2#1.base, cstrcat_~s2#1.offset := cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_~s1#1.base, cstrcat_~s1#1.offset; 485#L517-3 call cstrcat_#t~mem2#1 := read~int#1(cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset, 1); 473#L517-1 assume !(0 != cstrcat_#t~mem2#1);havoc cstrcat_#t~mem2#1; 471#L519-2 [2024-10-31 22:12:51,604 INFO L747 eck$LassoCheckResult]: Loop: 471#L519-2 cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset := cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_#t~post4#1.base, 1 + cstrcat_#t~post4#1.offset;cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset := cstrcat_~s2#1.base, cstrcat_~s2#1.offset;cstrcat_~s2#1.base, cstrcat_~s2#1.offset := cstrcat_#t~post5#1.base, 1 + cstrcat_#t~post5#1.offset;call cstrcat_#t~mem6#1 := read~int#0(cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, 1);call write~int#1(cstrcat_#t~mem6#1, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, 1); 472#L519 assume !!(0 != cstrcat_#t~mem6#1);havoc cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset;havoc cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset;havoc cstrcat_#t~mem6#1; 471#L519-2 [2024-10-31 22:12:51,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:51,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1505990522, now seen corresponding path program 1 times [2024-10-31 22:12:51,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:51,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410597588] [2024-10-31 22:12:51,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:51,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:51,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:51,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:51,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:51,656 INFO L85 PathProgramCache]: Analyzing trace with hash 3206, now seen corresponding path program 1 times [2024-10-31 22:12:51,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:51,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583974748] [2024-10-31 22:12:51,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:51,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:51,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:51,675 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:51,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:51,676 INFO L85 PathProgramCache]: Analyzing trace with hash 147089355, now seen corresponding path program 1 times [2024-10-31 22:12:51,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:51,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131891453] [2024-10-31 22:12:51,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:51,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:12:51,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:51,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131891453] [2024-10-31 22:12:51,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131891453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:51,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:51,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:12:51,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841514476] [2024-10-31 22:12:51,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:52,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:52,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:12:52,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:12:52,186 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. cyclomatic complexity: 17 Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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) [2024-10-31 22:12:52,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:52,238 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2024-10-31 22:12:52,238 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 65 transitions. [2024-10-31 22:12:52,239 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2024-10-31 22:12:52,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 53 transitions. [2024-10-31 22:12:52,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-10-31 22:12:52,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2024-10-31 22:12:52,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 53 transitions. [2024-10-31 22:12:52,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:12:52,241 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 53 transitions. [2024-10-31 22:12:52,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 53 transitions. [2024-10-31 22:12:52,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2024-10-31 22:12:52,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.275) internal successors, (51), 39 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:12:52,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2024-10-31 22:12:52,244 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 51 transitions. [2024-10-31 22:12:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:12:52,246 INFO L425 stractBuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2024-10-31 22:12:52,246 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:12:52,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 51 transitions. [2024-10-31 22:12:52,247 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2024-10-31 22:12:52,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:12:52,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:12:52,247 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:52,248 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:12:52,248 INFO L745 eck$LassoCheckResult]: Stem: 583#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 576#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet12#1, main_#t~post13#1, main_~i~0#1, main_#t~nondet14#1, main_#t~post15#1, main_~i~1#1, main_#t~ret16#1.base, main_#t~ret16#1.offset, main_~length1~0#1, main_~length2~0#1, main_~length3~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet7#1;main_~length1~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;main_~length2~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;main_~length3~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 577#L527 assume !(main_~length1~0#1 < 1); 580#L527-2 assume !(main_~length2~0#1 < 2); 581#L530-1 assume !(main_~length3~0#1 < 1); 578#L533-1 assume !(main_~length2~0#1 - main_~length3~0#1 < main_~length1~0#1 || main_~length3~0#1 > main_~length2~0#1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~0#1 := 0; 579#L540-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 592#L540-4 havoc main_~i~0#1;main_~i~1#1 := 0; 591#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);havoc main_#t~nondet14#1;call write~int#1(main_#t~nondet14#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet14#1; 590#L545-2 main_#t~post15#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post15#1;havoc main_#t~post15#1; 589#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);havoc main_#t~nondet14#1;call write~int#1(main_#t~nondet14#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet14#1; 588#L545-2 main_#t~post15#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post15#1;havoc main_#t~post15#1; 587#L545-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 586#L545-4 havoc main_~i~1#1;call write~int#0(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int#1(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length3~0#1 - 1), 1);assume { :begin_inline_cstrcat } true;cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset, cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrcat_#res#1.base, cstrcat_#res#1.offset;havoc cstrcat_#t~mem2#1, cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset, cstrcat_#t~post4#1.base, cstrcat_#t~post4#1.offset, cstrcat_#t~post5#1.base, cstrcat_#t~post5#1.offset, cstrcat_#t~mem6#1, cstrcat_~s1#1.base, cstrcat_~s1#1.offset, cstrcat_~s2#1.base, cstrcat_~s2#1.offset, cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s1#1.base, cstrcat_~s1#1.offset := cstrcat_#in~s1#1.base, cstrcat_#in~s1#1.offset;cstrcat_~s2#1.base, cstrcat_~s2#1.offset := cstrcat_#in~s2#1.base, cstrcat_#in~s2#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_~s1#1.base, cstrcat_~s1#1.offset; 575#L517-3 [2024-10-31 22:12:52,248 INFO L747 eck$LassoCheckResult]: Loop: 575#L517-3 call cstrcat_#t~mem2#1 := read~int#1(cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset, 1); 574#L517-1 assume !!(0 != cstrcat_#t~mem2#1);havoc cstrcat_#t~mem2#1;cstrcat_#t~post3#1.base, cstrcat_#t~post3#1.offset := cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset;cstrcat_~s~0#1.base, cstrcat_~s~0#1.offset := cstrcat_#t~post3#1.base, 1 + cstrcat_#t~post3#1.offset; 575#L517-3 [2024-10-31 22:12:52,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:52,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1898962205, now seen corresponding path program 2 times [2024-10-31 22:12:52,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:52,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195835656] [2024-10-31 22:12:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:52,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:52,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:52,301 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:52,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:52,302 INFO L85 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 3 times [2024-10-31 22:12:52,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:52,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012418969] [2024-10-31 22:12:52,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:52,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:52,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:52,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:52,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:52,313 INFO L85 PathProgramCache]: Analyzing trace with hash 458423656, now seen corresponding path program 2 times [2024-10-31 22:12:52,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:52,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514908107] [2024-10-31 22:12:52,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:52,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:52,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:12:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:12:52,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:12:53,517 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:12:53,517 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:12:53,517 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:12:53,518 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:12:53,518 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:12:53,518 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:53,518 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:12:53,518 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:12:53,518 INFO L132 ssoRankerPreferences]: Filename of dumped script: cstrcat-alloca-2.i_Iteration6_Lasso [2024-10-31 22:12:53,518 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:12:53,518 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:12:53,521 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,527 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,819 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,822 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,832 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,835 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,841 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,844 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,858 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,870 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,897 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:53,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:12:54,256 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:12:54,256 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:12:54,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:54,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:54,263 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:54,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:12:54,267 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 [2024-10-31 22:12:54,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:54,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:12:54,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:54,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:54,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:54,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:12:54,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:12:54,285 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:54,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:12:54,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:54,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:54,306 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:54,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:12:54,311 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 [2024-10-31 22:12:54,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:54,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:12:54,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:54,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:54,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:54,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:12:54,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:12:54,331 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:54,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:12:54,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:54,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:54,352 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:54,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:12:54,358 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 [2024-10-31 22:12:54,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:54,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:12:54,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:54,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:54,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:54,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:12:54,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:12:54,377 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:54,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:12:54,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:54,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:54,399 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:54,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:12:54,401 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 [2024-10-31 22:12:54,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:54,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:12:54,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:54,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:54,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:54,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:12:54,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:12:54,421 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:54,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:12:54,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:54,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:54,442 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:54,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:12:54,446 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 [2024-10-31 22:12:54,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:54,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:12:54,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:54,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:54,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:54,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:12:54,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:12:54,463 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:12:54,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-10-31 22:12:54,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:54,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:54,483 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:54,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:12:54,486 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 [2024-10-31 22:12:54,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:12:54,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:12:54,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:12:54,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:12:54,505 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:12:54,506 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:12:54,516 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:12:54,553 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2024-10-31 22:12:54,553 INFO L444 ModelExtractionUtils]: 1 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. [2024-10-31 22:12:54,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:12:54,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:54,556 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:54,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:12:54,558 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:12:54,574 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-31 22:12:54,574 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:12:54,574 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcat_~s~0#1.offset, v_rep(select #length ULTIMATE.start_cstrcat_~s~0#1.base)_1) = -1*ULTIMATE.start_cstrcat_~s~0#1.offset + 1*v_rep(select #length ULTIMATE.start_cstrcat_~s~0#1.base)_1 Supporting invariants [] [2024-10-31 22:12:54,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 22:12:54,614 INFO L156 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2024-10-31 22:12:54,615 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~s~0!offset [2024-10-31 22:12:54,616 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-10-31 22:12:54,617 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-10-31 22:12:54,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:54,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:12:54,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:54,687 WARN L253 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:12:54,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:54,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:12:54,706 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:12:54,706 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 51 transitions. cyclomatic complexity: 19 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-31 22:12:54,734 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 51 transitions. cyclomatic complexity: 19. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 48 states and 62 transitions. Complement of second has 6 states. [2024-10-31 22:12:54,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 22:12:54,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-31 22:12:54,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2024-10-31 22:12:54,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 14 letters. Loop has 2 letters. [2024-10-31 22:12:54,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:12:54,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 16 letters. Loop has 2 letters. [2024-10-31 22:12:54,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:12:54,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 14 letters. Loop has 4 letters. [2024-10-31 22:12:54,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:12:54,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 62 transitions. [2024-10-31 22:12:54,739 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:12:54,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 0 states and 0 transitions. [2024-10-31 22:12:54,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:12:54,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:12:54,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:12:54,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:12:54,740 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:12:54,740 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:12:54,740 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:12:54,740 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:12:54,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:12:54,740 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:12:54,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:12:54,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:12:54 BoogieIcfgContainer [2024-10-31 22:12:54,750 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:12:54,750 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:12:54,750 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:12:54,751 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:12:54,751 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:45" (3/4) ... [2024-10-31 22:12:54,754 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:12:54,756 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:12:54,756 INFO L158 Benchmark]: Toolchain (without parser) took 10469.60ms. Allocated memory was 153.1MB in the beginning and 192.9MB in the end (delta: 39.8MB). Free memory was 116.1MB in the beginning and 95.5MB in the end (delta: 20.6MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2024-10-31 22:12:54,757 INFO L158 Benchmark]: CDTParser took 1.09ms. Allocated memory is still 113.2MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:12:54,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.89ms. Allocated memory is still 153.1MB. Free memory was 115.6MB in the beginning and 97.2MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:12:54,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.85ms. Allocated memory is still 153.1MB. Free memory was 97.2MB in the beginning and 95.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:54,758 INFO L158 Benchmark]: Boogie Preprocessor took 51.04ms. Allocated memory is still 153.1MB. Free memory was 95.0MB in the beginning and 93.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:54,759 INFO L158 Benchmark]: RCFGBuilder took 408.03ms. Allocated memory is still 153.1MB. Free memory was 92.6MB in the beginning and 118.2MB in the end (delta: -25.6MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-10-31 22:12:54,759 INFO L158 Benchmark]: BuchiAutomizer took 9257.54ms. Allocated memory was 153.1MB in the beginning and 192.9MB in the end (delta: 39.8MB). Free memory was 118.2MB in the beginning and 95.5MB in the end (delta: 22.7MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2024-10-31 22:12:54,760 INFO L158 Benchmark]: Witness Printer took 5.54ms. Allocated memory is still 192.9MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:12:54,762 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09ms. Allocated memory is still 113.2MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 697.89ms. Allocated memory is still 153.1MB. Free memory was 115.6MB in the beginning and 97.2MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.85ms. Allocated memory is still 153.1MB. Free memory was 97.2MB in the beginning and 95.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.04ms. Allocated memory is still 153.1MB. Free memory was 95.0MB in the beginning and 93.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 408.03ms. Allocated memory is still 153.1MB. Free memory was 92.6MB in the beginning and 118.2MB in the end (delta: -25.6MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 9257.54ms. Allocated memory was 153.1MB in the beginning and 192.9MB in the end (delta: 39.8MB). Free memory was 118.2MB in the beginning and 95.5MB in the end (delta: 22.7MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. * Witness Printer took 5.54ms. Allocated memory is still 192.9MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (length1 + ((long long) -1 * i)) and consists of 4 locations. One deterministic module has affine ranking function (length2 + ((long long) -1 * i)) and consists of 4 locations. One deterministic module has affine ranking function null and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.1s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 8.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations. 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 186 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 183 mSDsluCounter, 239 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 149 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 213 IncrementalHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 90 mSDtfsCounter, 213 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital134 mio100 ax113 hnf100 lsp84 ukn76 mio100 lsp45 div167 bol100 ite100 ukn100 eq161 hnf92 smp78 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 151ms VariablesStem: 12 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-31 22:12:54,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 22:12:54,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-31 22:12:55,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17abbd18-6ca0-4904-a07a-b82b3567152b/bin/uautomizer-verify-4GaUIPS5ZU/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