./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strrchr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strrchr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX --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 64bit --witnessprinter.graph.data.programhash b850f5453e922b3972aa9b5b79a1b07337c08d581cc5e6a2a56803408dc479cf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:34:14,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:34:14,179 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-08 18:34:14,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:34:14,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:34:14,237 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:34:14,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:34:14,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:34:14,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:34:14,239 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:34:14,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:34:14,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:34:14,241 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:34:14,241 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-08 18:34:14,242 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-08 18:34:14,242 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-08 18:34:14,243 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-08 18:34:14,243 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-08 18:34:14,244 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-08 18:34:14,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:34:14,245 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-08 18:34:14,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:34:14,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:34:14,250 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-08 18:34:14,250 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-08 18:34:14,250 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-08 18:34:14,251 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:34:14,251 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:34:14,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:34:14,251 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-08 18:34:14,252 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:34:14,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:34:14,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:34:14,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:34:14,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:34:14,258 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-08 18:34:14,258 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_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b850f5453e922b3972aa9b5b79a1b07337c08d581cc5e6a2a56803408dc479cf [2024-11-08 18:34:14,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:34:14,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:34:14,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:34:14,650 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:34:14,651 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:34:14,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/termination-dietlibc/strrchr.i Unable to find full path for "g++" [2024-11-08 18:34:16,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:34:17,268 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:34:17,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/sv-benchmarks/c/termination-dietlibc/strrchr.i [2024-11-08 18:34:17,293 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/data/d7752fc40/8528eccc97714b1eb345bdde19065428/FLAG11abcb303 [2024-11-08 18:34:17,317 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/data/d7752fc40/8528eccc97714b1eb345bdde19065428 [2024-11-08 18:34:17,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:34:17,325 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:34:17,327 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:34:17,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:34:17,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:34:17,338 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:17,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@588a20dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17, skipping insertion in model container [2024-11-08 18:34:17,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:17,404 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:34:17,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:34:17,853 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:34:17,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:34:17,938 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:34:17,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17 WrapperNode [2024-11-08 18:34:17,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:34:17,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:34:17,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:34:17,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:34:17,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:17,971 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:18,000 INFO L138 Inliner]: procedures = 114, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2024-11-08 18:34:18,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:34:18,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:34:18,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:34:18,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:34:18,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:18,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:18,022 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:18,046 INFO L175 MemorySlicer]: Split 10 memory accesses to 1 slices as follows [10]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 2 writes are split as follows [2]. [2024-11-08 18:34:18,049 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:18,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:18,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:18,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:18,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:18,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:18,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:34:18,081 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:34:18,081 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:34:18,081 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:34:18,082 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (1/1) ... [2024-11-08 18:34:18,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:18,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:18,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:18,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-08 18:34:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:34:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:34:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:34:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:34:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:34:18,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:34:18,274 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:34:18,277 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:34:18,543 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-08 18:34:18,543 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:34:18,563 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:34:18,564 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:34:18,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:18 BoogieIcfgContainer [2024-11-08 18:34:18,568 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:34:18,569 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-08 18:34:18,570 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-08 18:34:18,575 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-08 18:34:18,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:34:18,576 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.11 06:34:17" (1/3) ... [2024-11-08 18:34:18,579 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@109888ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 06:34:18, skipping insertion in model container [2024-11-08 18:34:18,580 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:34:18,580 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:17" (2/3) ... [2024-11-08 18:34:18,580 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@109888ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 06:34:18, skipping insertion in model container [2024-11-08 18:34:18,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:34:18,581 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:18" (3/3) ... [2024-11-08 18:34:18,583 INFO L332 chiAutomizerObserver]: Analyzing ICFG strrchr.i [2024-11-08 18:34:18,663 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-08 18:34:18,663 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-08 18:34:18,663 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-08 18:34:18,664 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-08 18:34:18,664 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-08 18:34:18,664 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-08 18:34:18,664 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-08 18:34:18,664 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-08 18:34:18,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 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) [2024-11-08 18:34:18,695 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2024-11-08 18:34:18,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:34:18,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:34:18,703 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-08 18:34:18,704 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-08 18:34:18,704 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-08 18:34:18,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 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) [2024-11-08 18:34:18,706 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2024-11-08 18:34:18,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:34:18,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:34:18,707 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-08 18:34:18,708 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-08 18:34:18,716 INFO L745 eck$LassoCheckResult]: Stem: 21#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet16#1, main_#t~post17#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc main_#t~nondet14#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 10#L521true assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 11#L523-3true [2024-11-08 18:34:18,720 INFO L747 eck$LassoCheckResult]: Loop: 11#L523-3true assume main_~i~0#1 < main_~in_len~0#1 - 1; 14#L523-1true assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 11#L523-3true [2024-11-08 18:34:18,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:18,732 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-11-08 18:34:18,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:18,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718195619] [2024-11-08 18:34:18,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:18,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:18,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:18,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:18,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:18,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-11-08 18:34:18,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:18,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626128764] [2024-11-08 18:34:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:18,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:18,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:18,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:18,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:18,933 INFO L85 PathProgramCache]: Analyzing trace with hash 28695817, now seen corresponding path program 1 times [2024-11-08 18:34:18,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:18,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684715116] [2024-11-08 18:34:18,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:18,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:18,968 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:18,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:19,328 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 18:34:19,329 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 18:34:19,329 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 18:34:19,329 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 18:34:19,330 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 18:34:19,330 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:19,330 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 18:34:19,330 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 18:34:19,331 INFO L132 ssoRankerPreferences]: Filename of dumped script: strrchr.i_Iteration1_Lasso [2024-11-08 18:34:19,331 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 18:34:19,331 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 18:34:19,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:19,372 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:19,377 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:19,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:19,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:19,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:19,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:19,638 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:19,641 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:19,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:19,948 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 18:34:19,954 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 18:34:19,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:19,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:19,958 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:19,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-08 18:34:19,963 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 [2024-11-08 18:34:19,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:19,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:19,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:19,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:19,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:19,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:19,985 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:19,990 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:20,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-08 18:34:20,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:20,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:20,019 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:20,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-08 18:34:20,023 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 [2024-11-08 18:34:20,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:20,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:20,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:20,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:20,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:20,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:20,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:20,045 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:20,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-08 18:34:20,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:20,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:20,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:20,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-08 18:34:20,075 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 [2024-11-08 18:34:20,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:20,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:20,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:20,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:20,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:20,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:20,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:20,098 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:20,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-08 18:34:20,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:20,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:20,124 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:20,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-08 18:34:20,129 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 [2024-11-08 18:34:20,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:20,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:20,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:20,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:20,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:20,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:20,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:20,153 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:20,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:20,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:20,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:20,180 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:20,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-08 18:34:20,187 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 [2024-11-08 18:34:20,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:20,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:20,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:20,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:20,213 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:34:20,214 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:34:20,225 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:20,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-08 18:34:20,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:20,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:20,250 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:20,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-08 18:34:20,253 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 [2024-11-08 18:34:20,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:20,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:20,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:20,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:20,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:20,271 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:20,271 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:20,275 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:20,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:20,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:20,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:20,302 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:20,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-08 18:34:20,305 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 [2024-11-08 18:34:20,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:20,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:20,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:20,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:20,330 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:34:20,330 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:34:20,339 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:20,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-08 18:34:20,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:20,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:20,365 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:20,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-08 18:34:20,368 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 [2024-11-08 18:34:20,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:20,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:20,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:20,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:20,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:34:20,391 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:34:20,399 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:20,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:20,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:20,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:20,424 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:20,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-08 18:34:20,428 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 [2024-11-08 18:34:20,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:20,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:20,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:20,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:20,456 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:34:20,456 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:34:20,475 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 18:34:20,501 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-08 18:34:20,501 INFO L444 ModelExtractionUtils]: 11 out of 19 variables were initially zero. Simplification set additionally 5 variables to zero. [2024-11-08 18:34:20,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:20,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:20,506 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:20,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-08 18:34:20,511 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 18:34:20,537 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-08 18:34:20,538 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 18:34:20,538 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~in_len~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~in_len~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-08 18:34:20,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:20,581 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2024-11-08 18:34:20,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:20,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:34:20,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:20,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:34:20,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:20,736 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 [2024-11-08 18:34:20,739 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-08 18:34:20,810 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 70 transitions. Complement of second has 6 states. [2024-11-08 18:34:20,815 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 [2024-11-08 18:34:20,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-08 18:34:20,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2024-11-08 18:34:20,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 3 letters. Loop has 2 letters. [2024-11-08 18:34:20,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:34:20,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-08 18:34:20,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:34:20,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-08 18:34:20,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:34:20,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 70 transitions. [2024-11-08 18:34:20,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 18:34:20,839 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 20 states and 26 transitions. [2024-11-08 18:34:20,840 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-08 18:34:20,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-08 18:34:20,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2024-11-08 18:34:20,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:34:20,842 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-11-08 18:34:20,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2024-11-08 18:34:20,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-08 18:34:20,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 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) [2024-11-08 18:34:20,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2024-11-08 18:34:20,877 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-11-08 18:34:20,877 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-11-08 18:34:20,877 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-08 18:34:20,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2024-11-08 18:34:20,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 18:34:20,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:34:20,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:34:20,879 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-08 18:34:20,879 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:20,879 INFO L745 eck$LassoCheckResult]: Stem: 142#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 130#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet16#1, main_#t~post17#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc main_#t~nondet14#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 131#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 133#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 123#L523-4 havoc main_~i~0#1;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);havoc main_#t~nondet18#1;main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 124#L511-2 [2024-11-08 18:34:20,880 INFO L747 eck$LassoCheckResult]: Loop: 124#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 139#L512 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 127#L512-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 125#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 126#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 140#L513-2 call strrchr_#t~mem6#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 137#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 138#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 141#L514-2 call strrchr_#t~mem9#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 136#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 132#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 128#L515-2 call strrchr_#t~mem12#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 129#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 124#L511-2 [2024-11-08 18:34:20,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:20,881 INFO L85 PathProgramCache]: Analyzing trace with hash 28696038, now seen corresponding path program 1 times [2024-11-08 18:34:20,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:20,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206074308] [2024-11-08 18:34:20,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:20,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:20,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:20,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:20,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:20,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1767314799, now seen corresponding path program 1 times [2024-11-08 18:34:20,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:20,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155308240] [2024-11-08 18:34:20,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:20,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:21,019 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:21,039 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:21,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:21,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1166510284, now seen corresponding path program 1 times [2024-11-08 18:34:21,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:21,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953291464] [2024-11-08 18:34:21,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:21,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:21,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-08 18:34:21,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:21,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:21,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953291464] [2024-11-08 18:34:21,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953291464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:21,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:21,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:34:21,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848655027] [2024-11-08 18:34:21,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:22,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:22,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:34:22,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:34:22,411 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2024-11-08 18:34:22,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:22,568 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2024-11-08 18:34:22,568 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2024-11-08 18:34:22,570 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 18:34:22,572 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 21 states and 26 transitions. [2024-11-08 18:34:22,573 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-08 18:34:22,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-08 18:34:22,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2024-11-08 18:34:22,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:34:22,576 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 26 transitions. [2024-11-08 18:34:22,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2024-11-08 18:34:22,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2024-11-08 18:34:22,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 19 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) [2024-11-08 18:34:22,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2024-11-08 18:34:22,579 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-11-08 18:34:22,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:34:22,581 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-11-08 18:34:22,582 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-08 18:34:22,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2024-11-08 18:34:22,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 18:34:22,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:34:22,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:34:22,586 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:22,586 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:22,587 INFO L745 eck$LassoCheckResult]: Stem: 200#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 189#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet16#1, main_#t~post17#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc main_#t~nondet14#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 190#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 191#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 192#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 193#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 181#L523-4 havoc main_~i~0#1;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);havoc main_#t~nondet18#1;main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 182#L511-2 [2024-11-08 18:34:22,587 INFO L747 eck$LassoCheckResult]: Loop: 182#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 197#L512 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 185#L512-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 183#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 184#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 198#L513-2 call strrchr_#t~mem6#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 195#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 196#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 199#L514-2 call strrchr_#t~mem9#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 194#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 188#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 186#L515-2 call strrchr_#t~mem12#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 187#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 182#L511-2 [2024-11-08 18:34:22,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:22,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1806876939, now seen corresponding path program 1 times [2024-11-08 18:34:22,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:22,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364789504] [2024-11-08 18:34:22,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:22,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:22,615 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:22,631 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:22,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:22,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1767314799, now seen corresponding path program 2 times [2024-11-08 18:34:22,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:22,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260580949] [2024-11-08 18:34:22,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:22,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:22,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:22,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:22,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:22,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1138862535, now seen corresponding path program 1 times [2024-11-08 18:34:22,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:22,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737858616] [2024-11-08 18:34:22,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:22,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:23,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:23,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737858616] [2024-11-08 18:34:23,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737858616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:34:23,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322852673] [2024-11-08 18:34:23,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:23,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:34:23,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:23,173 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:34:23,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 18:34:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:23,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 18:34:23,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:23,417 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 13 treesize of output 9 [2024-11-08 18:34:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:23,751 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:34:24,123 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 15 treesize of output 13 [2024-11-08 18:34:24,127 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 16 treesize of output 12 [2024-11-08 18:34:24,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:24,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322852673] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:34:24,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:34:24,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 25 [2024-11-08 18:34:24,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305965563] [2024-11-08 18:34:24,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:34:24,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:24,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 18:34:24,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2024-11-08 18:34:24,661 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 7 Second operand has 25 states, 25 states have (on average 2.0) internal successors, (50), 25 states have internal predecessors, (50), 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) [2024-11-08 18:34:25,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:25,207 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2024-11-08 18:34:25,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 39 transitions. [2024-11-08 18:34:25,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 18:34:25,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 23 states and 28 transitions. [2024-11-08 18:34:25,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-08 18:34:25,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-08 18:34:25,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2024-11-08 18:34:25,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:34:25,209 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2024-11-08 18:34:25,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2024-11-08 18:34:25,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2024-11-08 18:34:25,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 21 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) [2024-11-08 18:34:25,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2024-11-08 18:34:25,212 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-11-08 18:34:25,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:34:25,213 INFO L425 stractBuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-11-08 18:34:25,214 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-08 18:34:25,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2024-11-08 18:34:25,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 18:34:25,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:34:25,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:34:25,219 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-08 18:34:25,219 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:25,219 INFO L745 eck$LassoCheckResult]: Stem: 412#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 400#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet16#1, main_#t~post17#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc main_#t~nondet14#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 401#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 402#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 403#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 404#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 405#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 413#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 392#L523-4 havoc main_~i~0#1;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);havoc main_#t~nondet18#1;main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 393#L511-2 [2024-11-08 18:34:25,219 INFO L747 eck$LassoCheckResult]: Loop: 393#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 409#L512 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 396#L512-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 394#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 395#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 410#L513-2 call strrchr_#t~mem6#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 407#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 408#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 411#L514-2 call strrchr_#t~mem9#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 406#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 399#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 397#L515-2 call strrchr_#t~mem12#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 398#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 393#L511-2 [2024-11-08 18:34:25,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:25,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1241738992, now seen corresponding path program 2 times [2024-11-08 18:34:25,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:25,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526356915] [2024-11-08 18:34:25,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:25,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:25,237 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:25,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:25,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:25,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1767314799, now seen corresponding path program 3 times [2024-11-08 18:34:25,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:25,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325630644] [2024-11-08 18:34:25,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:25,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:25,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:25,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:25,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:25,268 INFO L85 PathProgramCache]: Analyzing trace with hash 339179522, now seen corresponding path program 2 times [2024-11-08 18:34:25,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:25,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769204364] [2024-11-08 18:34:25,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:25,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:25,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:25,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:25,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769204364] [2024-11-08 18:34:25,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769204364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:34:25,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144749748] [2024-11-08 18:34:25,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:34:25,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:34:25,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:25,762 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:34:25,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 18:34:25,871 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:34:25,872 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:34:25,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-08 18:34:25,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:25,996 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 13 treesize of output 9 [2024-11-08 18:34:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:26,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:34:26,523 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 44 treesize of output 38 [2024-11-08 18:34:26,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:26,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 53 [2024-11-08 18:34:26,806 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:26,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144749748] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:34:26,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:34:26,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 13] total 31 [2024-11-08 18:34:26,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841862820] [2024-11-08 18:34:26,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:34:27,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:27,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 18:34:27,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=838, Unknown=0, NotChecked=0, Total=930 [2024-11-08 18:34:27,205 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 7 Second operand has 31 states, 31 states have (on average 1.7741935483870968) internal successors, (55), 31 states have internal predecessors, (55), 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) [2024-11-08 18:34:28,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:28,357 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2024-11-08 18:34:28,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 50 transitions. [2024-11-08 18:34:28,358 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 18:34:28,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 25 states and 30 transitions. [2024-11-08 18:34:28,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-08 18:34:28,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-08 18:34:28,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2024-11-08 18:34:28,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:34:28,363 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-11-08 18:34:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2024-11-08 18:34:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-11-08 18:34:28,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 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) [2024-11-08 18:34:28,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2024-11-08 18:34:28,367 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-11-08 18:34:28,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 18:34:28,372 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-11-08 18:34:28,372 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-08 18:34:28,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2024-11-08 18:34:28,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 18:34:28,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:34:28,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:34:28,374 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1] [2024-11-08 18:34:28,374 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:28,374 INFO L745 eck$LassoCheckResult]: Stem: 672#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 658#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet16#1, main_#t~post17#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc main_#t~nondet14#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 659#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 661#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 662#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 666#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 674#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 663#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 664#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 673#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 651#L523-4 havoc main_~i~0#1;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);havoc main_#t~nondet18#1;main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 652#L511-2 [2024-11-08 18:34:28,374 INFO L747 eck$LassoCheckResult]: Loop: 652#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 669#L512 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 655#L512-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 653#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 654#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 671#L513-2 call strrchr_#t~mem6#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 667#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 668#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 670#L514-2 call strrchr_#t~mem9#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 665#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 660#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 656#L515-2 call strrchr_#t~mem12#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 657#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 652#L511-2 [2024-11-08 18:34:28,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:28,375 INFO L85 PathProgramCache]: Analyzing trace with hash -689948779, now seen corresponding path program 3 times [2024-11-08 18:34:28,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:28,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454624943] [2024-11-08 18:34:28,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:28,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:28,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:28,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:28,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:28,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1767314799, now seen corresponding path program 4 times [2024-11-08 18:34:28,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:28,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560760674] [2024-11-08 18:34:28,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:28,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:28,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:28,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:28,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:28,448 INFO L85 PathProgramCache]: Analyzing trace with hash 642950013, now seen corresponding path program 3 times [2024-11-08 18:34:28,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:28,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836675765] [2024-11-08 18:34:28,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:28,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:29,136 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:29,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:29,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836675765] [2024-11-08 18:34:29,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836675765] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:34:29,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196735851] [2024-11-08 18:34:29,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 18:34:29,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:34:29,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:29,140 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:34:29,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 18:34:29,255 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-08 18:34:29,256 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:34:29,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-08 18:34:29,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:29,402 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 13 treesize of output 9 [2024-11-08 18:34:29,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:29,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 14 [2024-11-08 18:34:29,654 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:29,654 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:34:30,014 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 72 treesize of output 62 [2024-11-08 18:34:30,023 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:34:30,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 130 treesize of output 94 [2024-11-08 18:34:30,359 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:30,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196735851] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:34:30,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:34:30,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 35 [2024-11-08 18:34:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790804494] [2024-11-08 18:34:30,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:34:30,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:30,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-08 18:34:30,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1062, Unknown=0, NotChecked=0, Total=1190 [2024-11-08 18:34:30,735 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 7 Second operand has 35 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 35 states have internal predecessors, (62), 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) [2024-11-08 18:34:31,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:31,756 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2024-11-08 18:34:31,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 59 transitions. [2024-11-08 18:34:31,758 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 18:34:31,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 59 transitions. [2024-11-08 18:34:31,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2024-11-08 18:34:31,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2024-11-08 18:34:31,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 59 transitions. [2024-11-08 18:34:31,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:34:31,759 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 59 transitions. [2024-11-08 18:34:31,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 59 transitions. [2024-11-08 18:34:31,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2024-11-08 18:34:31,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 40 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) [2024-11-08 18:34:31,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2024-11-08 18:34:31,767 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 51 transitions. [2024-11-08 18:34:31,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-08 18:34:31,769 INFO L425 stractBuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2024-11-08 18:34:31,769 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-08 18:34:31,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 51 transitions. [2024-11-08 18:34:31,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 18:34:31,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:34:31,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:34:31,772 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1, 1] [2024-11-08 18:34:31,772 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:31,772 INFO L745 eck$LassoCheckResult]: Stem: 950#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 936#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet16#1, main_#t~post17#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc main_#t~nondet14#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 937#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 939#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 940#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 941#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 942#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 943#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 966#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 965#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 964#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 963#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 962#L523-4 havoc main_~i~0#1;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);havoc main_#t~nondet18#1;main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 934#L511-2 [2024-11-08 18:34:31,772 INFO L747 eck$LassoCheckResult]: Loop: 934#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 946#L512 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 930#L512-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 931#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 959#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 958#L513-2 call strrchr_#t~mem6#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 956#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 954#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 953#L514-2 call strrchr_#t~mem9#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 952#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 951#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 932#L515-2 call strrchr_#t~mem12#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 933#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 934#L511-2 [2024-11-08 18:34:31,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:31,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1616024838, now seen corresponding path program 4 times [2024-11-08 18:34:31,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:31,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212715220] [2024-11-08 18:34:31,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:31,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:31,806 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:31,818 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:31,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:31,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1767314799, now seen corresponding path program 5 times [2024-11-08 18:34:31,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:31,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685198367] [2024-11-08 18:34:31,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:31,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:31,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:31,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:31,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:31,836 INFO L85 PathProgramCache]: Analyzing trace with hash 508615736, now seen corresponding path program 4 times [2024-11-08 18:34:31,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:31,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104731597] [2024-11-08 18:34:31,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:31,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:31,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:31,917 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:33,449 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 18:34:33,449 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 18:34:33,449 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 18:34:33,450 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 18:34:33,450 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 18:34:33,450 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:33,450 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 18:34:33,450 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 18:34:33,450 INFO L132 ssoRankerPreferences]: Filename of dumped script: strrchr.i_Iteration6_Lasso [2024-11-08 18:34:33,450 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 18:34:33,450 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 18:34:33,455 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,459 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,462 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,466 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,469 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,478 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,938 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,947 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,962 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,966 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,978 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,981 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,987 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,990 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:33,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:35,231 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 18:34:35,231 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 18:34:35,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:35,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:35,236 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:35,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-08 18:34:35,246 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 [2024-11-08 18:34:35,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:35,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:35,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:35,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:35,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:35,259 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:35,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:35,262 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:35,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-08 18:34:35,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:35,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:35,286 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:35,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-08 18:34:35,290 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 [2024-11-08 18:34:35,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:35,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:35,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:35,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:35,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:35,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:35,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:35,311 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:35,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-08 18:34:35,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:35,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:35,335 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:35,339 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 [2024-11-08 18:34:35,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-08 18:34:35,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:35,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:35,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:35,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:35,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:35,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:35,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:35,359 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:35,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-08 18:34:35,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:35,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:35,383 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:35,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-08 18:34:35,386 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 [2024-11-08 18:34:35,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:35,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:35,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:35,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:35,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:35,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:35,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:35,401 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:35,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:35,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:35,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:35,416 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:35,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-08 18:34:35,418 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 [2024-11-08 18:34:35,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:35,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:35,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:35,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:35,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:35,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:35,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:35,433 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:35,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:35,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:35,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:35,449 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:35,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-08 18:34:35,452 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 [2024-11-08 18:34:35,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:35,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:35,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:35,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:35,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:35,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:35,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:35,467 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:35,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:35,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:35,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:35,484 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:35,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-08 18:34:35,486 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 [2024-11-08 18:34:35,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:35,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:35,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:35,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:35,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:35,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:35,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:35,501 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:35,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-08 18:34:35,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:35,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:35,516 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:35,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-08 18:34:35,519 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 [2024-11-08 18:34:35,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:35,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:35,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:35,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:35,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:34:35,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:34:35,547 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:35,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-08 18:34:35,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:35,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:35,563 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:35,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-08 18:34:35,565 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 [2024-11-08 18:34:35,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:35,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:35,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:35,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:35,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:34:35,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:34:35,586 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:35,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:35,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:35,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:35,606 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:35,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-08 18:34:35,609 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 [2024-11-08 18:34:35,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:35,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:35,626 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2024-11-08 18:34:35,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:35,858 INFO L401 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2024-11-08 18:34:35,858 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2024-11-08 18:34:36,343 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:36,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-08 18:34:36,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:36,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:36,371 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:36,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-08 18:34:36,374 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 [2024-11-08 18:34:36,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:36,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:36,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:36,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:36,397 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:34:36,397 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:34:36,411 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 18:34:36,449 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2024-11-08 18:34:36,450 INFO L444 ModelExtractionUtils]: 1 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. [2024-11-08 18:34:36,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:36,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:36,452 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:36,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-08 18:34:36,455 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 18:34:36,475 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-11-08 18:34:36,475 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 18:34:36,475 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strrchr_~t#1.offset) = -1*ULTIMATE.start_strrchr_~t#1.offset + 2 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_#t~malloc15#1.base)_2 + 5 >= 0] [2024-11-08 18:34:36,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:36,541 INFO L156 tatePredicateManager]: 8 out of 10 supporting invariants were superfluous and have been removed [2024-11-08 18:34:36,547 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~t!offset [2024-11-08 18:34:36,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:36,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:34:36,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:36,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2024-11-08 18:34:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:36,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:34:36,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:37,151 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.8 stem predicates 4 loop predicates [2024-11-08 18:34:37,151 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 12 Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 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) [2024-11-08 18:34:37,477 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 12. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 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) Result 75 states and 98 transitions. Complement of second has 17 states. [2024-11-08 18:34:37,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 8 stem states 3 non-accepting loop states 2 accepting loop states [2024-11-08 18:34:37,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 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) [2024-11-08 18:34:37,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 40 transitions. [2024-11-08 18:34:37,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 40 transitions. Stem has 13 letters. Loop has 13 letters. [2024-11-08 18:34:37,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:34:37,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 40 transitions. Stem has 26 letters. Loop has 13 letters. [2024-11-08 18:34:37,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:34:37,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 40 transitions. Stem has 13 letters. Loop has 26 letters. [2024-11-08 18:34:37,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:34:37,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 98 transitions. [2024-11-08 18:34:37,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 18:34:37,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 46 states and 57 transitions. [2024-11-08 18:34:37,486 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2024-11-08 18:34:37,486 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2024-11-08 18:34:37,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 57 transitions. [2024-11-08 18:34:37,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:34:37,487 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 57 transitions. [2024-11-08 18:34:37,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 57 transitions. [2024-11-08 18:34:37,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2024-11-08 18:34:37,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 42 states have internal predecessors, (53), 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) [2024-11-08 18:34:37,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2024-11-08 18:34:37,491 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 53 transitions. [2024-11-08 18:34:37,492 INFO L425 stractBuchiCegarLoop]: Abstraction has 43 states and 53 transitions. [2024-11-08 18:34:37,492 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-08 18:34:37,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 53 transitions. [2024-11-08 18:34:37,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 18:34:37,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:34:37,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:34:37,495 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1] [2024-11-08 18:34:37,495 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:37,496 INFO L745 eck$LassoCheckResult]: Stem: 1240#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1225#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet16#1, main_#t~post17#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc main_#t~nondet14#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 1226#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 1228#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 1229#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 1260#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 1259#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 1258#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 1257#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 1256#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 1233#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 1230#L523-3 assume main_~i~0#1 < main_~in_len~0#1 - 1; 1231#L523-1 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);havoc main_#t~nondet16#1;call write~int#0(main_#t~nondet16#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet16#1;main_#t~post17#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post17#1;havoc main_#t~post17#1; 1253#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 1218#L523-4 havoc main_~i~0#1;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);havoc main_#t~nondet18#1;main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 1219#L511-2 [2024-11-08 18:34:37,496 INFO L747 eck$LassoCheckResult]: Loop: 1219#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1236#L512 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 1252#L512-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1251#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1250#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1249#L513-2 call strrchr_#t~mem6#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1247#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1245#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1244#L514-2 call strrchr_#t~mem9#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1243#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1242#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1223#L515-2 call strrchr_#t~mem12#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1224#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 1219#L511-2 [2024-11-08 18:34:37,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:37,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1778080031, now seen corresponding path program 5 times [2024-11-08 18:34:37,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:37,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104870527] [2024-11-08 18:34:37,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:37,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:37,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:37,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:37,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:37,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1767314799, now seen corresponding path program 6 times [2024-11-08 18:34:37,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:37,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687742769] [2024-11-08 18:34:37,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:37,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:37,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:37,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:37,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:37,568 INFO L85 PathProgramCache]: Analyzing trace with hash 262394419, now seen corresponding path program 5 times [2024-11-08 18:34:37,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:37,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428840060] [2024-11-08 18:34:37,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:37,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:37,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:37,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:37,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:39,491 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 18:34:39,491 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 18:34:39,492 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 18:34:39,492 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 18:34:39,492 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 18:34:39,492 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:39,492 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 18:34:39,492 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 18:34:39,492 INFO L132 ssoRankerPreferences]: Filename of dumped script: strrchr.i_Iteration7_Lasso [2024-11-08 18:34:39,492 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 18:34:39,492 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 18:34:39,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:39,500 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:39,504 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:39,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:39,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:39,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:39,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,044 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,055 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,063 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,066 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,072 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,075 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,081 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,088 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,091 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,094 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,097 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,102 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,105 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:40,115 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 18:34:41,092 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 18:34:41,093 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 18:34:41,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:41,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:41,098 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:41,103 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 [2024-11-08 18:34:41,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-08 18:34:41,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:41,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:41,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:41,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:41,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:41,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:41,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:41,122 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:41,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-08 18:34:41,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:41,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:41,137 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:41,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-08 18:34:41,139 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 [2024-11-08 18:34:41,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:41,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:41,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:41,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:41,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:41,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:41,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:41,155 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:41,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:41,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:41,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:41,176 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:41,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-08 18:34:41,178 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 [2024-11-08 18:34:41,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:41,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:41,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:41,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:41,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:41,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:41,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:41,193 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:41,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:41,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:41,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:41,207 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:41,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-08 18:34:41,210 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 [2024-11-08 18:34:41,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:41,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:41,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:41,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:41,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:41,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:41,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:41,225 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:41,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-08 18:34:41,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:41,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:41,240 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:41,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-08 18:34:41,242 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 [2024-11-08 18:34:41,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:41,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:41,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:41,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:41,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:41,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:41,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:41,257 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:41,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:41,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:41,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:41,280 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:41,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-08 18:34:41,282 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 [2024-11-08 18:34:41,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:41,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 18:34:41,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:41,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:41,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:41,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 18:34:41,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 18:34:41,302 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:41,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:41,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:41,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:41,324 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:41,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-08 18:34:41,328 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 [2024-11-08 18:34:41,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:41,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:41,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:41,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:41,346 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:34:41,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:34:41,353 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:41,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:41,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:41,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:41,376 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:41,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-08 18:34:41,379 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 [2024-11-08 18:34:41,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:41,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:41,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:41,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:41,398 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:34:41,398 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:34:41,403 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 18:34:41,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:41,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:41,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:41,427 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:41,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-08 18:34:41,430 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 [2024-11-08 18:34:41,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 18:34:41,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 18:34:41,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 18:34:41,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 18:34:41,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 18:34:41,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 18:34:41,467 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 18:34:41,512 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2024-11-08 18:34:41,512 INFO L444 ModelExtractionUtils]: 1 out of 16 variables were initially zero. Simplification set additionally 12 variables to zero. [2024-11-08 18:34:41,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:34:41,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:41,515 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:41,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-08 18:34:41,517 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 18:34:41,535 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-08 18:34:41,535 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 18:34:41,535 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strrchr_~t#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc15#1.base)_3) = -1*ULTIMATE.start_strrchr_~t#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc15#1.base)_3 Supporting invariants [] [2024-11-08 18:34:41,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:41,602 INFO L156 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2024-11-08 18:34:41,606 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~t!offset [2024-11-08 18:34:41,606 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-08 18:34:41,606 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-08 18:34:41,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:41,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:34:41,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:41,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 18:34:41,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:41,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:41,940 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2024-11-08 18:34:41,941 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 53 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2024-11-08 18:34:42,046 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 53 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 65 states and 87 transitions. Complement of second has 7 states. [2024-11-08 18:34:42,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-08 18:34:42,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2024-11-08 18:34:42,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2024-11-08 18:34:42,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 15 letters. Loop has 13 letters. [2024-11-08 18:34:42,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:34:42,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 28 letters. Loop has 13 letters. [2024-11-08 18:34:42,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:34:42,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 15 letters. Loop has 26 letters. [2024-11-08 18:34:42,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 18:34:42,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 87 transitions. [2024-11-08 18:34:42,052 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-08 18:34:42,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 0 states and 0 transitions. [2024-11-08 18:34:42,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-08 18:34:42,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-08 18:34:42,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-08 18:34:42,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 18:34:42,053 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:34:42,053 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:34:42,053 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:34:42,053 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-08 18:34:42,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:34:42,053 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-08 18:34:42,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-08 18:34:42,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.11 06:34:42 BoogieIcfgContainer [2024-11-08 18:34:42,061 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-08 18:34:42,062 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:34:42,062 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:34:42,062 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:34:42,063 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:18" (3/4) ... [2024-11-08 18:34:42,066 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:34:42,067 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:34:42,068 INFO L158 Benchmark]: Toolchain (without parser) took 24743.05ms. Allocated memory was 151.0MB in the beginning and 295.7MB in the end (delta: 144.7MB). Free memory was 119.8MB in the beginning and 152.7MB in the end (delta: -32.9MB). Peak memory consumption was 112.4MB. Max. memory is 16.1GB. [2024-11-08 18:34:42,068 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 151.0MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:34:42,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 613.27ms. Allocated memory is still 151.0MB. Free memory was 119.2MB in the beginning and 100.9MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 18:34:42,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.09ms. Allocated memory is still 151.0MB. Free memory was 100.3MB in the beginning and 98.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:34:42,070 INFO L158 Benchmark]: Boogie Preprocessor took 75.99ms. Allocated memory is still 151.0MB. Free memory was 98.8MB in the beginning and 95.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:34:42,070 INFO L158 Benchmark]: RCFGBuilder took 487.28ms. Allocated memory is still 151.0MB. Free memory was 95.8MB in the beginning and 81.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:34:42,070 INFO L158 Benchmark]: BuchiAutomizer took 23492.26ms. Allocated memory was 151.0MB in the beginning and 295.7MB in the end (delta: 144.7MB). Free memory was 80.9MB in the beginning and 153.7MB in the end (delta: -72.9MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2024-11-08 18:34:42,071 INFO L158 Benchmark]: Witness Printer took 5.19ms. Allocated memory is still 295.7MB. Free memory was 153.7MB in the beginning and 152.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:34:42,073 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 151.0MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 613.27ms. Allocated memory is still 151.0MB. Free memory was 119.2MB in the beginning and 100.9MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.09ms. Allocated memory is still 151.0MB. Free memory was 100.3MB in the beginning and 98.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.99ms. Allocated memory is still 151.0MB. Free memory was 98.8MB in the beginning and 95.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 487.28ms. Allocated memory is still 151.0MB. Free memory was 95.8MB in the beginning and 81.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 23492.26ms. Allocated memory was 151.0MB in the beginning and 295.7MB in the end (delta: 144.7MB). Free memory was 80.9MB in the beginning and 153.7MB in the end (delta: -72.9MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. * Witness Printer took 5.19ms. Allocated memory is still 295.7MB. Free memory was 153.7MB in the beginning and 152.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~t!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~t!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 7 terminating modules (4 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) -1 * i) + in_len) and consists of 4 locations. One deterministic module has affine ranking function null and consists of 13 locations. One deterministic module has affine ranking function null and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 35 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 23.4s and 8 iterations. TraceHistogramMax:5. Analysis of lassos took 18.7s. Construction of modules took 1.4s. Büchi inclusion checks took 3.1s. Highest rank in rank-based complementation 3. Minimization of det autom 7. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 14 StatesRemovedByMinimization, 5 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, 151 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 392 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 325 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1530 IncrementalHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 67 mSDtfsCounter, 1530 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc4 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital171 mio100 ax100 hnf100 lsp105 ukn66 mio100 lsp46 div128 bol100 ite100 ukn100 eq185 hnf91 smp90 dnf367 smp81 tf100 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 739ms VariablesStem: 7 VariablesLoop: 14 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 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! [2024-11-08 18:34:42,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-08 18:34:42,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:42,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:42,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-08 18:34:42,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3165801-5144-4425-b7b1-21ab7b27a02e/bin/uautomizer-verify-jihMAELWvX/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