./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu --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 6c12f09591910c75ee0fb408a48b3499b101134bf1227e2b3b797b62a89d1275 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:54:10,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:54:10,603 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:54:10,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:54:10,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:54:10,632 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:54:10,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:54:10,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:54:10,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:54:10,636 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:54:10,637 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:54:10,637 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:54:10,638 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:54:10,638 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:54:10,639 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:54:10,640 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:54:10,640 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:54:10,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:54:10,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:54:10,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:54:10,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:54:10,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:54:10,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:54:10,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:54:10,646 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:54:10,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:54:10,647 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:54:10,647 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:54:10,648 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:54:10,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:54:10,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:54:10,650 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:54:10,651 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:54:10,651 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_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c12f09591910c75ee0fb408a48b3499b101134bf1227e2b3b797b62a89d1275 [2023-11-19 07:54:10,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:54:10,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:54:10,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:54:10,962 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:54:10,962 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:54:10,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i [2023-11-19 07:54:14,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:54:14,295 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:54:14,295 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/sv-benchmarks/c/termination-recursive-malloc/mutual_simple.i [2023-11-19 07:54:14,303 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/data/f4d75d019/3d0c4f4be16a4740b7f0a5fe734a1b9b/FLAGdca4f3c59 [2023-11-19 07:54:14,317 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/data/f4d75d019/3d0c4f4be16a4740b7f0a5fe734a1b9b [2023-11-19 07:54:14,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:54:14,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:54:14,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:14,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:54:14,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:54:14,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638a4f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14, skipping insertion in model container [2023-11-19 07:54:14,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,348 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:54:14,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:14,541 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:54:14,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:14,574 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:54:14,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14 WrapperNode [2023-11-19 07:54:14,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:14,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:14,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:54:14,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:54:14,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,612 INFO L138 Inliner]: procedures = 12, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2023-11-19 07:54:14,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:14,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:54:14,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:54:14,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:54:14,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:54:14,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:54:14,633 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:54:14,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:54:14,634 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:14,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:14,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:14,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:54:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:54:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:54:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-19 07:54:14,729 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-19 07:54:14,729 INFO L130 BoogieDeclarations]: Found specification of procedure g [2023-11-19 07:54:14,729 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2023-11-19 07:54:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:54:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:54:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:54:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:54:14,796 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:54:14,799 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:54:14,907 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:54:14,915 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:54:14,915 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:54:14,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:14 BoogieIcfgContainer [2023-11-19 07:54:14,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:54:14,920 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:54:14,920 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:54:14,924 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:54:14,925 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:54:14,925 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:54:14" (1/3) ... [2023-11-19 07:54:14,936 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dfd75ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:54:14, skipping insertion in model container [2023-11-19 07:54:14,937 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:54:14,937 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (2/3) ... [2023-11-19 07:54:14,939 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dfd75ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:54:14, skipping insertion in model container [2023-11-19 07:54:14,939 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:54:14,939 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:14" (3/3) ... [2023-11-19 07:54:14,941 INFO L332 chiAutomizerObserver]: Analyzing ICFG mutual_simple.i [2023-11-19 07:54:15,030 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:54:15,030 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:54:15,031 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:54:15,031 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:54:15,032 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:54:15,032 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:54:15,032 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:54:15,032 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:54:15,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 13 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:54:15,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 07:54:15,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:54:15,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:54:15,070 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 07:54:15,071 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:54:15,071 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:54:15,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 13 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:54:15,075 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-19 07:54:15,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:54:15,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:54:15,076 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 07:54:15,076 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:54:15,084 INFO L748 eck$LassoCheckResult]: Stem: 15#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet6#1, main_~p1~0#1.base, main_~p1~0#1.offset;call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnHeap(4);main_~p1~0#1.base, main_~p1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;havoc main_#t~malloc5#1.base, main_#t~malloc5#1.offset;havoc main_#t~nondet6#1;call write~int(main_#t~nondet6#1, main_~p1~0#1.base, main_~p1~0#1.offset, 4);havoc main_#t~nondet6#1; 9#L37true call f(main_~p1~0#1.base, main_~p1~0#1.offset);< 13#$Ultimate##0true [2023-11-19 07:54:15,086 INFO L750 eck$LassoCheckResult]: Loop: 13#$Ultimate##0true ~q.base, ~q.offset := #in~q.base, #in~q.offset;call #t~mem1 := read~int(~q.base, ~q.offset, 4); 12#L13true assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem2 := read~int(~q.base, ~q.offset, 4);#t~post3 := #t~mem2;call write~int(#t~post3 - 1, ~q.base, ~q.offset, 4);havoc #t~mem2;havoc #t~post3; 16#L17true call g(~q.base, ~q.offset);< 17#$Ultimate##0true ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4); 11#L22true assume !(#t~mem4 < 0);havoc #t~mem4; 5#L25true call f(~p.base, ~p.offset);< 13#$Ultimate##0true [2023-11-19 07:54:15,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:15,092 INFO L85 PathProgramCache]: Analyzing trace with hash 43767, now seen corresponding path program 1 times [2023-11-19 07:54:15,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:15,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692253559] [2023-11-19 07:54:15,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:15,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:15,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:54:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:15,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:54:15,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:15,251 INFO L85 PathProgramCache]: Analyzing trace with hash 891860259, now seen corresponding path program 1 times [2023-11-19 07:54:15,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:15,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280765088] [2023-11-19 07:54:15,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:15,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:15,280 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:54:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:15,300 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:54:15,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:15,302 INFO L85 PathProgramCache]: Analyzing trace with hash -306262119, now seen corresponding path program 1 times [2023-11-19 07:54:15,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:15,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982149372] [2023-11-19 07:54:15,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:15,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:15,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:54:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:15,386 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:54:16,335 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:54:16,338 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:54:16,338 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:54:16,338 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:54:16,338 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:54:16,338 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:16,339 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:54:16,339 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:54:16,339 INFO L133 ssoRankerPreferences]: Filename of dumped script: mutual_simple.i_Iteration1_Lasso [2023-11-19 07:54:16,339 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:54:16,339 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:54:16,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,616 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,618 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,625 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,627 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,637 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,640 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,642 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:54:16,903 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:54:16,907 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:54:16,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:16,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:16,924 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:16,939 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 [2023-11-19 07:54:16,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:54:16,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:54:16,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:54:16,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:54:16,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:54:16,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:54:16,964 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:54:16,986 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:54:17,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:17,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:17,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:17,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:17,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:54:17,017 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 [2023-11-19 07:54:17,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:54:17,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:54:17,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:54:17,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:54:17,036 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:54:17,037 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:54:17,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:54:17,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:17,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:17,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:17,076 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:17,088 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 [2023-11-19 07:54:17,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:54:17,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:54:17,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:54:17,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:54:17,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:54:17,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:54:17,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:54:17,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:54:17,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:17,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:17,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:17,154 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:17,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:54:17,161 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 [2023-11-19 07:54:17,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:54:17,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:54:17,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:54:17,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:54:17,184 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:54:17,185 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:54:17,201 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:54:17,219 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-19 07:54:17,219 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-11-19 07:54:17,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:54:17,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:17,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:17,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:54:17,267 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:54:17,290 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-19 07:54:17,290 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:54:17,290 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int f_#in~q.base) 0)_1) = 1*v_rep(select (select #memory_int f_#in~q.base) 0)_1 Supporting invariants [] [2023-11-19 07:54:17,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:17,335 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-11-19 07:54:17,341 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[#in~q!base][0] could not be translated [2023-11-19 07:54:17,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:17,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:17,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:54:17,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:17,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-19 07:54:17,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:17,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 32 treesize of output 16 [2023-11-19 07:54:17,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:17,739 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2023-11-19 07:54:17,742 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 13 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:17,980 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 13 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 47 states and 53 transitions. Complement of second has 25 states. [2023-11-19 07:54:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2023-11-19 07:54:17,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:17,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 15 transitions. [2023-11-19 07:54:17,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 15 transitions. Stem has 3 letters. Loop has 6 letters. [2023-11-19 07:54:17,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:54:17,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 15 transitions. Stem has 9 letters. Loop has 6 letters. [2023-11-19 07:54:17,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:54:17,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 15 transitions. Stem has 3 letters. Loop has 12 letters. [2023-11-19 07:54:17,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:54:17,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 53 transitions. [2023-11-19 07:54:17,995 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:54:17,998 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 0 states and 0 transitions. [2023-11-19 07:54:17,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:54:17,999 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:54:17,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:54:17,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:18,000 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:54:18,000 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:54:18,000 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:54:18,000 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:54:18,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:54:18,000 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:54:18,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:54:18,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:54:18 BoogieIcfgContainer [2023-11-19 07:54:18,007 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:54:18,008 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:54:18,008 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:54:18,008 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:54:18,009 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:14" (3/4) ... [2023-11-19 07:54:18,012 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:54:18,013 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:54:18,014 INFO L158 Benchmark]: Toolchain (without parser) took 3692.66ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 119.0MB in the beginning and 132.7MB in the end (delta: -13.7MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2023-11-19 07:54:18,014 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 153.1MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:18,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.95ms. Allocated memory is still 153.1MB. Free memory was 119.0MB in the beginning and 109.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:54:18,015 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.73ms. Allocated memory is still 153.1MB. Free memory was 109.1MB in the beginning and 108.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:18,016 INFO L158 Benchmark]: Boogie Preprocessor took 19.31ms. Allocated memory is still 153.1MB. Free memory was 107.6MB in the beginning and 106.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:18,017 INFO L158 Benchmark]: RCFGBuilder took 285.74ms. Allocated memory is still 153.1MB. Free memory was 106.5MB in the beginning and 96.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:54:18,017 INFO L158 Benchmark]: BuchiAutomizer took 3087.54ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 96.1MB in the beginning and 133.7MB in the end (delta: -37.7MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-19 07:54:18,018 INFO L158 Benchmark]: Witness Printer took 5.12ms. Allocated memory is still 201.3MB. Free memory was 133.7MB in the beginning and 132.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:18,021 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 153.1MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.95ms. Allocated memory is still 153.1MB. Free memory was 119.0MB in the beginning and 109.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.73ms. Allocated memory is still 153.1MB. Free memory was 109.1MB in the beginning and 108.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.31ms. Allocated memory is still 153.1MB. Free memory was 107.6MB in the beginning and 106.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 285.74ms. Allocated memory is still 153.1MB. Free memory was 106.5MB in the beginning and 96.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3087.54ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 96.1MB in the beginning and 133.7MB in the end (delta: -37.7MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 5.12ms. Allocated memory is still 201.3MB. Free memory was 133.7MB in the beginning and 132.7MB 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: ArrayAccessExpression #memory_int[#in~q!base][0] 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 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 12 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital105 mio100 ax100 hnf100 lsp100 ukn78 mio100 lsp41 div100 bol100 ite100 ukn100 eq211 hnf87 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 77ms VariablesStem: 1 VariablesLoop: 2 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! [2023-11-19 07:54:18,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f5d2b44-cd99-4cdf-b9a6-316d4aa9ac6a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE