./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b 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_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7f0d11c5f3d4193dc8b87cb3dbae552e2a558805da02a0660bf5cf3361799dbf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:48:20,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:48:20,445 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:48:20,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:48:20,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:48:20,489 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:48:20,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:48:20,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:48:20,493 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:48:20,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:48:20,494 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:48:20,495 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:48:20,496 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:48:20,497 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:48:20,498 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:48:20,499 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:48:20,500 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:48:20,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:48:20,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:48:20,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:48:20,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:48:20,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:48:20,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:48:20,506 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:48:20,507 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:48:20,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:48:20,509 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:48:20,510 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:48:20,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:48:20,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:48:20,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:48:20,514 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:48:20,515 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:48:20,516 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_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f0d11c5f3d4193dc8b87cb3dbae552e2a558805da02a0660bf5cf3361799dbf [2023-11-06 22:48:20,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:48:20,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:48:20,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:48:20,904 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:48:20,905 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:48:20,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i [2023-11-06 22:48:24,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:48:24,987 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:48:24,988 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i [2023-11-06 22:48:25,008 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/data/469e0ba36/e1157ee33ef342119e13042aa77459cd/FLAG432d48a2c [2023-11-06 22:48:25,027 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/data/469e0ba36/e1157ee33ef342119e13042aa77459cd [2023-11-06 22:48:25,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:48:25,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:48:25,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:48:25,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:48:25,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:48:25,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d59ef2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25, skipping insertion in model container [2023-11-06 22:48:25,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,121 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:48:25,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:48:25,501 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:48:25,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:48:25,578 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:48:25,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25 WrapperNode [2023-11-06 22:48:25,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:48:25,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:48:25,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:48:25,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:48:25,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,645 INFO L138 Inliner]: procedures = 111, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2023-11-06 22:48:25,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:48:25,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:48:25,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:48:25,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:48:25,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,677 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,680 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:48:25,681 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:48:25,681 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:48:25,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:48:25,683 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25" (1/1) ... [2023-11-06 22:48:25,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:25,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:25,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:25,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:48:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:48:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:48:25,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:48:25,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:48:25,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:48:25,902 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:48:25,904 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:48:26,056 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:48:26,075 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:48:26,075 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:48:26,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:48:26 BoogieIcfgContainer [2023-11-06 22:48:26,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:48:26,080 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:48:26,080 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:48:26,093 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:48:26,101 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:48:26,101 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:48:25" (1/3) ... [2023-11-06 22:48:26,103 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d8575ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:48:26, skipping insertion in model container [2023-11-06 22:48:26,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:48:26,103 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:25" (2/3) ... [2023-11-06 22:48:26,104 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d8575ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:48:26, skipping insertion in model container [2023-11-06 22:48:26,104 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:48:26,104 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:48:26" (3/3) ... [2023-11-06 22:48:26,109 INFO L332 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemchr-alloca-1.i [2023-11-06 22:48:26,208 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:48:26,208 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:48:26,210 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:48:26,211 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:48:26,211 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:48:26,212 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:48:26,212 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:48:26,213 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:48:26,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 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) [2023-11-06 22:48:26,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:48:26,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:48:26,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:48:26,264 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:48:26,264 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:48:26,266 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:48:26,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 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) [2023-11-06 22:48:26,272 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:48:26,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:48:26,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:48:26,274 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:48:26,275 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:48:26,288 INFO L748 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~length~0#1, main_~n~0#1, main_~c~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset;havoc main_#t~nondet5#1;main_~length~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_#t~nondet6#1;main_~n~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~c~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 13#L563true assume !(main_~length~0#1 < 1); 6#L563-2true assume !(main_~n~0#1 < 1); 14#L566-1true call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~n~0#1 % 18446744073709551616);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;assume { :begin_inline_cmemchr } true;cmemchr_#in~s#1.base, cmemchr_#in~s#1.offset, cmemchr_#in~c#1, cmemchr_#in~n#1 := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~c~0#1, main_~n~0#1;havoc cmemchr_#res#1.base, cmemchr_#res#1.offset;havoc cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset, cmemchr_#t~mem4#1, cmemchr_#t~pre2#1, cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset, cmemchr_~s#1.base, cmemchr_~s#1.offset, cmemchr_~c#1, cmemchr_~n#1;cmemchr_~s#1.base, cmemchr_~s#1.offset := cmemchr_#in~s#1.base, cmemchr_#in~s#1.offset;cmemchr_~c#1 := cmemchr_#in~c#1;cmemchr_~n#1 := cmemchr_#in~n#1; 15#L550true assume 0 != cmemchr_~n#1 % 18446744073709551616;cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset := cmemchr_~s#1.base, cmemchr_~s#1.offset; 3#L552-4true [2023-11-06 22:48:26,289 INFO L750 eck$LassoCheckResult]: Loop: 3#L552-4true cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset := cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset;cmemchr_~p~0#1.base, cmemchr_~p~0#1.offset := cmemchr_#t~post3#1.base, 1 + cmemchr_#t~post3#1.offset;call cmemchr_#t~mem4#1 := read~int(cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset, 1); 9#L553true assume !((if cmemchr_#t~mem4#1 % 256 % 4294967296 <= 2147483647 then cmemchr_#t~mem4#1 % 256 % 4294967296 else cmemchr_#t~mem4#1 % 256 % 4294967296 - 4294967296) == (if cmemchr_~c#1 % 256 % 4294967296 <= 2147483647 then cmemchr_~c#1 % 256 % 4294967296 else cmemchr_~c#1 % 256 % 4294967296 - 4294967296));havoc cmemchr_#t~post3#1.base, cmemchr_#t~post3#1.offset;havoc cmemchr_#t~mem4#1; 7#L552-1true cmemchr_#t~pre2#1 := cmemchr_~n#1 - 1;cmemchr_~n#1 := cmemchr_~n#1 - 1; 8#L552-2true assume !!(0 != cmemchr_#t~pre2#1 % 18446744073709551616);havoc cmemchr_#t~pre2#1; 3#L552-4true [2023-11-06 22:48:26,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:26,300 INFO L85 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2023-11-06 22:48:26,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:26,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709943973] [2023-11-06 22:48:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:26,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:26,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:26,588 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:26,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:26,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1605803, now seen corresponding path program 1 times [2023-11-06 22:48:26,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:26,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570163832] [2023-11-06 22:48:26,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:26,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:26,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:26,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:26,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:26,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1592233654, now seen corresponding path program 1 times [2023-11-06 22:48:26,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:48:26,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862207538] [2023-11-06 22:48:26,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:48:26,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:48:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:26,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:48:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:48:26,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:48:27,551 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:48:27,552 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:48:27,552 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:48:27,553 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:48:27,553 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:48:27,553 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:27,553 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:48:27,554 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:48:27,554 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemchr-alloca-1.i_Iteration1_Lasso [2023-11-06 22:48:27,554 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:48:27,555 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:48:27,591 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:27,603 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:27,607 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:27,611 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:27,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:27,620 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:27,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:27,631 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:27,636 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:28,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:28,129 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:28,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:28,138 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:28,142 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:28,147 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:28,151 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:28,156 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:28,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:28,163 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:28,168 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:28,172 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:48:29,079 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:48:29,086 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:48:29,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:29,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:29,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:29,122 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 [2023-11-06 22:48:29,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:29,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:29,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:29,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:29,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:29,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:48:29,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:48:29,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:29,157 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:29,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:29,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:29,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:29,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:29,184 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 [2023-11-06 22:48:29,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:48:29,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:29,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:29,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:29,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:29,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:29,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:48:29,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:29,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:29,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:29,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:29,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:29,222 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:29,231 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 [2023-11-06 22:48:29,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:29,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:29,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:29,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:29,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:29,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:48:29,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:29,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:48:29,261 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:29,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:29,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:29,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:29,275 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:29,283 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 [2023-11-06 22:48:29,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:48:29,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:29,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:29,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:29,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:29,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:29,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:29,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:29,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:29,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:29,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:29,330 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:29,336 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 [2023-11-06 22:48:29,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:29,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:29,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:29,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:29,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:29,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:48:29,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:48:29,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:29,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:29,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:29,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:29,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:29,374 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:29,386 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 [2023-11-06 22:48:29,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:48:29,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:29,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:29,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:29,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:29,405 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:29,405 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:29,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:29,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:29,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:29,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:29,428 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:29,438 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 [2023-11-06 22:48:29,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:29,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:48:29,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:29,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:29,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:29,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:48:29,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:48:29,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:48:29,465 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:29,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-06 22:48:29,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:29,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:29,475 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:29,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:48:29,479 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 [2023-11-06 22:48:29,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:29,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:29,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:29,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:29,499 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:29,500 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:29,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:48:29,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:29,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:29,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:29,530 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:29,542 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 [2023-11-06 22:48:29,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:48:29,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:48:29,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:48:29,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:48:29,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:48:29,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:48:29,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:48:29,616 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:48:29,662 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2023-11-06 22:48:29,662 INFO L444 ModelExtractionUtils]: 11 out of 22 variables were initially zero. Simplification set additionally 8 variables to zero. [2023-11-06 22:48:29,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:48:29,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:48:29,696 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:48:29,703 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:48:29,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:48:29,762 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-06 22:48:29,762 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:48:29,763 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_1, ULTIMATE.start_cmemchr_~p~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_1 - 1*ULTIMATE.start_cmemchr_~p~0#1.offset Supporting invariants [] [2023-11-06 22:48:29,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:29,804 INFO L156 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2023-11-06 22:48:29,814 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[#t~malloc8!base] could not be translated [2023-11-06 22:48:29,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:48:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:29,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:48:29,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:48:29,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:48:29,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:30,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:48:30,098 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-06 22:48:30,101 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 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 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:48:30,203 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 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 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 38 transitions. Complement of second has 7 states. [2023-11-06 22:48:30,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:48:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:48:30,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2023-11-06 22:48:30,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 4 letters. [2023-11-06 22:48:30,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:30,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 10 letters. Loop has 4 letters. [2023-11-06 22:48:30,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:30,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 8 letters. [2023-11-06 22:48:30,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:48:30,219 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 38 transitions. [2023-11-06 22:48:30,223 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:48:30,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2023-11-06 22:48:30,228 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:48:30,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:48:30,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:48:30,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:48:30,230 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:48:30,230 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:48:30,230 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:48:30,230 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:48:30,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:48:30,231 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:48:30,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:48:30,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:48:30 BoogieIcfgContainer [2023-11-06 22:48:30,240 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:48:30,241 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:48:30,241 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:48:30,241 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:48:30,242 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:48:26" (3/4) ... [2023-11-06 22:48:30,245 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:48:30,246 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:48:30,247 INFO L158 Benchmark]: Toolchain (without parser) took 5214.72ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 98.2MB in the beginning and 58.0MB in the end (delta: 40.2MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. [2023-11-06 22:48:30,248 INFO L158 Benchmark]: CDTParser took 1.20ms. Allocated memory is still 134.2MB. Free memory was 83.9MB in the beginning and 83.8MB in the end (delta: 113.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:48:30,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.17ms. Allocated memory is still 134.2MB. Free memory was 98.2MB in the beginning and 82.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 22:48:30,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.66ms. Allocated memory is still 134.2MB. Free memory was 82.5MB in the beginning and 80.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:48:30,251 INFO L158 Benchmark]: Boogie Preprocessor took 33.65ms. Allocated memory is still 134.2MB. Free memory was 80.5MB in the beginning and 79.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:48:30,252 INFO L158 Benchmark]: RCFGBuilder took 397.87ms. Allocated memory is still 134.2MB. Free memory was 79.3MB in the beginning and 68.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:48:30,253 INFO L158 Benchmark]: BuchiAutomizer took 4160.10ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 68.9MB in the beginning and 58.0MB in the end (delta: 10.9MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2023-11-06 22:48:30,253 INFO L158 Benchmark]: Witness Printer took 5.34ms. Allocated memory is still 184.5MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:48:30,262 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.20ms. Allocated memory is still 134.2MB. Free memory was 83.9MB in the beginning and 83.8MB in the end (delta: 113.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.17ms. Allocated memory is still 134.2MB. Free memory was 98.2MB in the beginning and 82.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.66ms. Allocated memory is still 134.2MB. Free memory was 82.5MB in the beginning and 80.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.65ms. Allocated memory is still 134.2MB. Free memory was 80.5MB in the beginning and 79.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 397.87ms. Allocated memory is still 134.2MB. Free memory was 79.3MB in the beginning and 68.9MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4160.10ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 68.9MB in the beginning and 58.0MB in the end (delta: 10.9MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. * Witness Printer took 5.34ms. Allocated memory is still 184.5MB. Free memory is still 58.0MB. 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: ArrayAccessExpression #length[#t~malloc8!base] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function NULL and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 16 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital133 mio100 ax113 hnf100 lsp78 ukn104 mio100 lsp50 div279 bol100 ite100 ukn100 eq157 hnf94 smp53 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-06 22:48:30,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:48:30,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ac79717-e2ad-47b3-8841-94756e338e66/bin/uautomizer-verify-WvqO1wxjHP/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