./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 041376d57652038a5d4ee57a004231861ab6efac51c30f8b6c72783e60a27529 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:00:55,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:00:55,494 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:00:55,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:00:55,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:00:55,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:00:55,521 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:00:55,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:00:55,522 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:00:55,523 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:00:55,523 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:00:55,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:00:55,524 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:00:55,525 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:00:55,525 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:00:55,525 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:00:55,526 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:00:55,526 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:00:55,527 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:00:55,527 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:00:55,528 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:00:55,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:00:55,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:00:55,529 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:00:55,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:00:55,529 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:00:55,530 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:00:55,530 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:00:55,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:00:55,535 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:00:55,535 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:00:55,535 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:00:55,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:00:55,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:00:55,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:00:55,536 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:00:55,537 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_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 041376d57652038a5d4ee57a004231861ab6efac51c30f8b6c72783e60a27529 [2024-10-31 22:00:55,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:00:55,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:00:55,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:00:55,917 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:00:55,917 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:00:55,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca-2.i Unable to find full path for "g++" [2024-10-31 22:00:57,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:00:58,183 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:00:58,188 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca-2.i [2024-10-31 22:00:58,210 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/data/2d79a76c6/b0ada6c8ebd34c6ca8cad8c6a49093b6/FLAG9e323aa65 [2024-10-31 22:00:58,225 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/data/2d79a76c6/b0ada6c8ebd34c6ca8cad8c6a49093b6 [2024-10-31 22:00:58,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:00:58,230 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:00:58,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:58,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:00:58,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:00:58,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753b5598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58, skipping insertion in model container [2024-10-31 22:00:58,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:00:58,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:58,704 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:00:58,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:58,793 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:00:58,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58 WrapperNode [2024-10-31 22:00:58,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:58,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:58,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:00:58,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:00:58,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,838 INFO L138 Inliner]: procedures = 110, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2024-10-31 22:00:58,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:58,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:00:58,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:00:58,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:00:58,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,855 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,869 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [5, 4]. 56 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0]. The 5 writes are split as follows [3, 2]. [2024-10-31 22:00:58,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:00:58,895 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:00:58,895 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:00:58,895 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:00:58,896 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (1/1) ... [2024-10-31 22:00:58,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:58,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:58,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:58,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:00:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:00:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:00:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:00:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:00:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:00:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:00:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:00:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:00:59,171 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:00:59,174 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:00:59,327 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-10-31 22:00:59,327 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:00:59,350 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:00:59,350 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:00:59,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:59 BoogieIcfgContainer [2024-10-31 22:00:59,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:00:59,352 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:00:59,352 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:00:59,357 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:00:59,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:00:59,358 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:00:58" (1/3) ... [2024-10-31 22:00:59,359 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@468625cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:00:59, skipping insertion in model container [2024-10-31 22:00:59,360 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:00:59,360 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:58" (2/3) ... [2024-10-31 22:00:59,360 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@468625cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:00:59, skipping insertion in model container [2024-10-31 22:00:59,360 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:00:59,360 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:59" (3/3) ... [2024-10-31 22:00:59,362 INFO L332 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig2-alloca-2.i [2024-10-31 22:00:59,434 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:00:59,434 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:00:59,434 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:00:59,435 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:00:59,435 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:00:59,435 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:00:59,435 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:00:59,435 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:00:59,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:59,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:59,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:59,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:59,457 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:00:59,457 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:00:59,457 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:00:59,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:59,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:59,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:59,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:59,459 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:00:59,459 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:00:59,466 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~nondet4#1;call write~int#1(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;call write~int#0(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 3#L552-3true [2024-10-31 22:00:59,467 INFO L747 eck$LassoCheckResult]: Loop: 3#L552-3true call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 11#L552-1true assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int#0(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 7#L554-3true assume !true; 10#L554-4true call main_#t~mem9#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#1(1 + main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem9#1; 3#L552-3true [2024-10-31 22:00:59,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:59,473 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:00:59,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:59,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263783321] [2024-10-31 22:00:59,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:59,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:59,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:59,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:59,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:59,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1144360, now seen corresponding path program 1 times [2024-10-31 22:00:59,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:59,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106209205] [2024-10-31 22:00:59,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:59,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:59,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:59,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:59,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106209205] [2024-10-31 22:00:59,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106209205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:59,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:59,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:59,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721076249] [2024-10-31 22:00:59,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:59,790 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:00:59,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:59,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:00:59,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:00:59,837 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:59,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:59,845 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2024-10-31 22:00:59,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2024-10-31 22:00:59,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:59,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2024-10-31 22:00:59,853 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-10-31 22:00:59,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-10-31 22:00:59,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2024-10-31 22:00:59,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:00:59,855 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2024-10-31 22:00:59,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2024-10-31 22:00:59,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-10-31 22:00:59,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2024-10-31 22:00:59,882 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2024-10-31 22:00:59,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:00:59,888 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2024-10-31 22:00:59,889 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:00:59,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2024-10-31 22:00:59,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:59,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:59,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:59,892 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:00:59,892 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-31 22:00:59,892 INFO L745 eck$LassoCheckResult]: Stem: 32#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 33#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~nondet4#1;call write~int#1(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;call write~int#0(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 30#L552-3 [2024-10-31 22:00:59,893 INFO L747 eck$LassoCheckResult]: Loop: 30#L552-3 call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 31#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int#0(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 34#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 35#L554-1 assume !(main_#t~mem7#1 > 1);havoc main_#t~mem7#1; 36#L554-4 call main_#t~mem9#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#1(1 + main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem9#1; 30#L552-3 [2024-10-31 22:00:59,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:59,897 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-10-31 22:00:59,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:59,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817043023] [2024-10-31 22:00:59,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:59,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:59,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:59,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:59,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:59,942 INFO L85 PathProgramCache]: Analyzing trace with hash 35468273, now seen corresponding path program 1 times [2024-10-31 22:00:59,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:59,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229588548] [2024-10-31 22:00:59,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:59,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:00,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:00,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229588548] [2024-10-31 22:01:00,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229588548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:00,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:00,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:01:00,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716330955] [2024-10-31 22:01:00,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:00,150 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:01:00,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:00,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:00,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:00,151 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:00,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:00,228 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2024-10-31 22:01:00,228 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2024-10-31 22:01:00,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-31 22:01:00,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2024-10-31 22:01:00,229 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-31 22:01:00,229 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-31 22:01:00,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2024-10-31 22:01:00,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:01:00,230 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-10-31 22:01:00,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2024-10-31 22:01:00,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-10-31 22:01:00,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2024-10-31 22:01:00,234 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-10-31 22:01:00,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:00,235 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-10-31 22:01:00,235 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:01:00,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2024-10-31 22:01:00,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-31 22:01:00,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:00,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:00,238 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:01:00,239 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2024-10-31 22:01:00,239 INFO L745 eck$LassoCheckResult]: Stem: 59#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 60#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~nondet4#1;call write~int#1(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;call write~int#0(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 55#L552-3 [2024-10-31 22:01:00,239 INFO L747 eck$LassoCheckResult]: Loop: 55#L552-3 call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 56#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int#0(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 57#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 58#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 61#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 63#L554-1 assume !(main_#t~mem7#1 > 1);havoc main_#t~mem7#1; 62#L554-4 call main_#t~mem9#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#1(1 + main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem9#1; 55#L552-3 [2024-10-31 22:01:00,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:00,240 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-10-31 22:01:00,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:00,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692045361] [2024-10-31 22:01:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:00,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:00,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:00,302 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:00,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:00,303 INFO L85 PathProgramCache]: Analyzing trace with hash -274676436, now seen corresponding path program 1 times [2024-10-31 22:01:00,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:00,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362453347] [2024-10-31 22:01:00,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:00,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:00,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:00,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362453347] [2024-10-31 22:01:00,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362453347] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:00,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594340961] [2024-10-31 22:01:00,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:00,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:00,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:00,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:00,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:01:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:00,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:01:00,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:01,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:01:01,039 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 23 treesize of output 3 [2024-10-31 22:01:01,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-31 22:01:01,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:01,062 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:01,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:01,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594340961] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:01,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:01,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-10-31 22:01:01,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319444632] [2024-10-31 22:01:01,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:01,136 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:01:01,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:01,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:01:01,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:01:01,138 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:01,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:01,229 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2024-10-31 22:01:01,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2024-10-31 22:01:01,230 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-10-31 22:01:01,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2024-10-31 22:01:01,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-10-31 22:01:01,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-10-31 22:01:01,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2024-10-31 22:01:01,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:01:01,231 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 16 transitions. [2024-10-31 22:01:01,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2024-10-31 22:01:01,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-10-31 22:01:01,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:01,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2024-10-31 22:01:01,233 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 16 transitions. [2024-10-31 22:01:01,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:01:01,235 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2024-10-31 22:01:01,235 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:01:01,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2024-10-31 22:01:01,235 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-10-31 22:01:01,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:01,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:01,236 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:01:01,236 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 4, 1, 1, 1, 1] [2024-10-31 22:01:01,236 INFO L745 eck$LassoCheckResult]: Stem: 137#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 138#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~nondet4#1;call write~int#1(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;call write~int#0(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 133#L552-3 [2024-10-31 22:01:01,237 INFO L747 eck$LassoCheckResult]: Loop: 133#L552-3 call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 134#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int#0(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 141#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 139#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 135#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 136#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 147#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 146#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 145#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 144#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 143#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 142#L554-1 assume !(main_#t~mem7#1 > 1);havoc main_#t~mem7#1; 140#L554-4 call main_#t~mem9#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#1(1 + main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem9#1; 133#L552-3 [2024-10-31 22:01:01,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:01,237 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-10-31 22:01:01,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:01,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649712258] [2024-10-31 22:01:01,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:01,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:01,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:01,273 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:01,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:01,273 INFO L85 PathProgramCache]: Analyzing trace with hash 351922269, now seen corresponding path program 2 times [2024-10-31 22:01:01,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:01,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939378360] [2024-10-31 22:01:01,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:01,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:01,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:01,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939378360] [2024-10-31 22:01:01,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939378360] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:01,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262917379] [2024-10-31 22:01:01,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:01:01,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:01,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:01,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:01,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:01:02,078 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:01:02,078 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:01:02,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:01:02,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:02,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:01:02,123 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 23 treesize of output 3 [2024-10-31 22:01:02,139 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 36 treesize of output 13 [2024-10-31 22:01:02,159 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 36 treesize of output 13 [2024-10-31 22:01:02,188 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 36 treesize of output 13 [2024-10-31 22:01:02,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-31 22:01:02,230 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:02,230 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:02,412 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:02,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262917379] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:02,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:02,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 17 [2024-10-31 22:01:02,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252918738] [2024-10-31 22:01:02,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:02,414 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:01:02,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:02,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-31 22:01:02,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=160, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:01:02,416 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. cyclomatic complexity: 2 Second operand has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:02,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:02,587 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2024-10-31 22:01:02,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 26 transitions. [2024-10-31 22:01:02,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-10-31 22:01:02,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 26 transitions. [2024-10-31 22:01:02,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-10-31 22:01:02,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-10-31 22:01:02,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 26 transitions. [2024-10-31 22:01:02,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:01:02,593 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-10-31 22:01:02,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 26 transitions. [2024-10-31 22:01:02,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-10-31 22:01:02,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:02,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2024-10-31 22:01:02,596 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-10-31 22:01:02,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-31 22:01:02,598 INFO L425 stractBuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-10-31 22:01:02,600 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:01:02,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 26 transitions. [2024-10-31 22:01:02,601 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-10-31 22:01:02,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:02,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:02,601 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:01:02,604 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 9, 1, 1, 1, 1] [2024-10-31 22:01:02,604 INFO L745 eck$LassoCheckResult]: Stem: 279#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 280#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~nondet4#1;call write~int#1(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;call write~int#0(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 275#L552-3 [2024-10-31 22:01:02,604 INFO L747 eck$LassoCheckResult]: Loop: 275#L552-3 call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 276#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int#0(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 283#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 281#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 277#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 278#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 299#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 298#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 297#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 296#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 295#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 294#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 293#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 292#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 291#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 290#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 289#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 288#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 287#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 286#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 285#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 284#L554-1 assume !(main_#t~mem7#1 > 1);havoc main_#t~mem7#1; 282#L554-4 call main_#t~mem9#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#1(1 + main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem9#1; 275#L552-3 [2024-10-31 22:01:02,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:02,605 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2024-10-31 22:01:02,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:02,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173461366] [2024-10-31 22:01:02,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:02,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:02,616 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:02,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:02,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:02,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1943458812, now seen corresponding path program 3 times [2024-10-31 22:01:02,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:02,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020437010] [2024-10-31 22:01:02,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:02,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:02,660 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:02,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:02,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:02,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1979445758, now seen corresponding path program 1 times [2024-10-31 22:01:02,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:02,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317707731] [2024-10-31 22:01:02,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:02,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:02,733 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:02,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:06,246 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:06,247 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:06,247 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:06,247 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:06,248 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:06,248 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:06,248 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:06,248 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:06,248 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-2013WST-Fig2-alloca-2.i_Iteration5_Lasso [2024-10-31 22:01:06,248 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:06,249 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:06,270 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,646 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,969 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:06,974 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:06,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:06,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:06,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:06,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:01:06,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:06,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:06,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:06,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:06,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:06,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:07,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:07,003 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:07,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:01:07,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,026 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:01:07,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:07,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:07,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:07,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:07,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:07,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:07,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:07,049 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:07,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 22:01:07,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,071 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:01:07,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:07,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:07,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:07,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:07,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,099 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:07,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:07,105 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:07,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:07,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,127 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:01:07,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:07,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:07,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:07,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:07,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:07,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:07,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:07,150 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:07,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:01:07,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,180 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:01:07,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:07,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:07,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:07,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:07,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,201 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:07,203 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:07,209 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:07,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 22:01:07,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,232 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:01:07,235 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:07,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:07,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:07,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:07,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:07,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:07,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:07,253 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:07,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:01:07,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,278 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:01:07,284 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:07,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:07,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:07,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:07,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:07,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,298 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:07,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:07,300 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:07,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-10-31 22:01:07,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,322 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:01:07,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:07,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:07,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:07,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:07,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:07,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:07,363 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:07,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:07,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,382 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:01:07,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:07,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:07,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:07,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:07,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:07,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:07,410 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:07,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-31 22:01:07,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,432 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:01:07,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:07,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:07,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:07,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:07,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,458 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:07,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:07,468 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:07,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:01:07,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,492 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:01:07,495 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:07,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:07,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:07,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:07,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:07,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:07,519 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:07,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:01:07,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,548 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:01:07,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:07,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:07,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:07,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:07,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:07,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:07,589 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:07,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:01:07,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,621 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:01:07,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:07,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:07,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:07,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:07,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:07,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:07,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:07,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:07,658 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:07,668 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:07,669 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:01:07,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,675 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:01:07,686 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:07,686 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:07,686 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:07,686 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#1 ULTIMATE.start_main_~x1~0#1.base) ULTIMATE.start_main_~x1~0#1.offset)_1) = -2*v_rep(select (select #memory_int#1 ULTIMATE.start_main_~x1~0#1.base) ULTIMATE.start_main_~x1~0#1.offset)_1 + 21 Supporting invariants [] [2024-10-31 22:01:07,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:01:07,830 INFO L156 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2024-10-31 22:01:07,855 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2024-10-31 22:01:07,856 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-10-31 22:01:07,857 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~x1~0!base,]]] [2024-10-31 22:01:07,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:07,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:07,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:07,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:01:07,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:08,171 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-10-31 22:01:08,174 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-10-31 22:01:08,176 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 26 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:08,246 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 26 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 51 transitions. Complement of second has 6 states. [2024-10-31 22:01:08,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 22:01:08,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:08,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-10-31 22:01:08,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 23 letters. [2024-10-31 22:01:08,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:08,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 25 letters. Loop has 23 letters. [2024-10-31 22:01:08,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:08,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 46 letters. [2024-10-31 22:01:08,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:08,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 51 transitions. [2024-10-31 22:01:08,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:01:08,254 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 47 states and 50 transitions. [2024-10-31 22:01:08,254 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2024-10-31 22:01:08,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2024-10-31 22:01:08,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 50 transitions. [2024-10-31 22:01:08,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:08,255 INFO L218 hiAutomatonCegarLoop]: Abstraction has 47 states and 50 transitions. [2024-10-31 22:01:08,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 50 transitions. [2024-10-31 22:01:08,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 29. [2024-10-31 22:01:08,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.103448275862069) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:08,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2024-10-31 22:01:08,258 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 32 transitions. [2024-10-31 22:01:08,258 INFO L425 stractBuchiCegarLoop]: Abstraction has 29 states and 32 transitions. [2024-10-31 22:01:08,258 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:01:08,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 32 transitions. [2024-10-31 22:01:08,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:01:08,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:08,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:08,259 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:01:08,259 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:01:08,259 INFO L745 eck$LassoCheckResult]: Stem: 498#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 499#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~nondet4#1;call write~int#1(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;call write~int#0(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 490#L552-3 call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 492#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int#0(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 494#L554-3 [2024-10-31 22:01:08,259 INFO L747 eck$LassoCheckResult]: Loop: 494#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 495#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 494#L554-3 [2024-10-31 22:01:08,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:08,260 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2024-10-31 22:01:08,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:08,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525255958] [2024-10-31 22:01:08,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:08,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:08,271 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:08,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:08,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:08,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2024-10-31 22:01:08,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:08,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558264635] [2024-10-31 22:01:08,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:08,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:08,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:08,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:08,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:08,289 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2024-10-31 22:01:08,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:08,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449144705] [2024-10-31 22:01:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:08,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:08,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:08,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:08,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:08,849 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:08,849 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:08,849 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:08,849 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:08,849 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:08,849 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:08,850 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:08,850 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:08,850 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-2013WST-Fig2-alloca-2.i_Iteration6_Lasso [2024-10-31 22:01:08,850 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:08,850 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:08,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:09,201 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:09,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:09,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:09,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:09,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:09,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:09,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:09,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:09,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:09,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:09,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:09,464 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:09,464 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:09,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:09,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:09,467 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:09,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:01:09,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:09,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:09,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:09,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:09,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:09,484 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:09,485 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:09,489 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:09,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 22:01:09,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:09,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:09,510 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:09,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:01:09,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:09,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:09,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:09,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:09,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:09,529 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:09,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:09,533 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:09,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:09,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:09,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:09,548 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:09,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:01:09,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:09,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:09,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:09,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:09,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:09,567 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:09,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:09,571 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:09,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-31 22:01:09,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:09,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:09,593 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:09,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:01:09,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:09,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:09,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:09,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:09,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:09,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:09,612 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:09,619 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:09,628 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-10-31 22:01:09,628 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2024-10-31 22:01:09,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:09,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:09,632 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:09,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:01:09,634 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:09,653 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-31 22:01:09,653 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:09,653 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#0 ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_2) = 1*v_rep(select (select #memory_int#0 ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_2 Supporting invariants [] [2024-10-31 22:01:09,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:09,693 INFO L156 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2024-10-31 22:01:09,696 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-31 22:01:09,696 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-10-31 22:01:09,696 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~x2~0!base,]]] [2024-10-31 22:01:09,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:09,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:09,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:09,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:01:09,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:09,763 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:01:09,763 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 32 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:09,794 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 32 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 73 states and 79 transitions. Complement of second has 7 states. [2024-10-31 22:01:09,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 22:01:09,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-10-31 22:01:09,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-31 22:01:09,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:09,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-31 22:01:09,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:09,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 4 letters. Loop has 4 letters. [2024-10-31 22:01:09,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:09,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 79 transitions. [2024-10-31 22:01:09,799 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:01:09,803 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 55 states and 59 transitions. [2024-10-31 22:01:09,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-10-31 22:01:09,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-10-31 22:01:09,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 59 transitions. [2024-10-31 22:01:09,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:09,804 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 59 transitions. [2024-10-31 22:01:09,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 59 transitions. [2024-10-31 22:01:09,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2024-10-31 22:01:09,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.06) internal successors, (53), 49 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2024-10-31 22:01:09,812 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 53 transitions. [2024-10-31 22:01:09,812 INFO L425 stractBuchiCegarLoop]: Abstraction has 50 states and 53 transitions. [2024-10-31 22:01:09,812 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:01:09,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 53 transitions. [2024-10-31 22:01:09,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:01:09,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:09,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:09,814 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 9, 2, 2, 1, 1, 1, 1] [2024-10-31 22:01:09,814 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:01:09,815 INFO L745 eck$LassoCheckResult]: Stem: 666#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 667#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~nondet4#1;call write~int#1(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;call write~int#0(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 657#L552-3 call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 658#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int#0(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 706#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 705#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 704#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 702#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 700#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 698#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 696#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 694#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 692#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 690#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 688#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 686#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 684#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 682#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 680#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 678#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 676#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 675#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 674#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 670#L554-1 assume !(main_#t~mem7#1 > 1);havoc main_#t~mem7#1; 669#L554-4 call main_#t~mem9#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#1(1 + main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem9#1; 659#L552-3 call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 661#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int#0(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 662#L554-3 [2024-10-31 22:01:09,816 INFO L747 eck$LassoCheckResult]: Loop: 662#L554-3 call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 663#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#0(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 662#L554-3 [2024-10-31 22:01:09,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:09,817 INFO L85 PathProgramCache]: Analyzing trace with hash 423138919, now seen corresponding path program 2 times [2024-10-31 22:01:09,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:09,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228323669] [2024-10-31 22:01:09,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:09,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:09,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:09,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:09,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:09,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 2 times [2024-10-31 22:01:09,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:09,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015244114] [2024-10-31 22:01:09,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:09,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:09,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:09,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:09,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:09,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1385391412, now seen corresponding path program 3 times [2024-10-31 22:01:09,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:09,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278105725] [2024-10-31 22:01:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:09,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:09,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:09,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:16,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-10-31 22:01:23,158 WARN L286 SmtUtils]: Spent 13.14s on a formula simplification. DAG size of input: 189 DAG size of output: 165 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-10-31 22:01:23,389 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:23,389 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:23,389 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:23,389 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:23,390 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:23,390 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:23,390 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:23,390 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:23,390 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-2013WST-Fig2-alloca-2.i_Iteration7_Lasso [2024-10-31 22:01:23,390 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:23,390 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:23,392 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:23,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:23,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:23,579 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:23,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:23,586 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:23,589 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:23,592 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:23,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:23,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:23,601 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:23,603 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:23,852 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:23,853 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:23,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:23,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:23,856 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:23,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:01:23,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:01:23,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:23,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:23,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:23,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:23,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:23,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:23,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:23,898 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:23,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:23,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:23,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:23,936 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:23,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:01:23,939 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 [2024-10-31 22:01:23,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:23,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:23,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:23,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:23,957 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:23,957 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:23,963 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:23,973 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2024-10-31 22:01:23,973 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 5 variables to zero. [2024-10-31 22:01:23,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:23,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:23,976 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:23,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:01:23,985 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:24,011 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-31 22:01:24,011 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:24,012 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#0 ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_3) = 1*v_rep(select (select #memory_int#0 ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_3 Supporting invariants [] [2024-10-31 22:01:24,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:24,052 INFO L156 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2024-10-31 22:01:24,053 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-31 22:01:24,053 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-10-31 22:01:24,053 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~x2~0!base,]]] [2024-10-31 22:01:24,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:24,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:24,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:24,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:01:24,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:24,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:24,243 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:01:24,243 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:24,271 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 68 states and 73 transitions. Complement of second has 7 states. [2024-10-31 22:01:24,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 22:01:24,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:24,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-10-31 22:01:24,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 27 letters. Loop has 2 letters. [2024-10-31 22:01:24,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:24,275 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:01:24,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:24,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:24,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:24,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:01:24,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:24,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:24,415 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:01:24,415 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:24,439 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 68 states and 73 transitions. Complement of second has 7 states. [2024-10-31 22:01:24,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 22:01:24,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:24,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-10-31 22:01:24,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 27 letters. Loop has 2 letters. [2024-10-31 22:01:24,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:24,444 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:01:24,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:24,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:24,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:24,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:01:24,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:24,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:24,577 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:01:24,577 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:24,605 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 76 states and 82 transitions. Complement of second has 6 states. [2024-10-31 22:01:24,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 22:01:24,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:24,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2024-10-31 22:01:24,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 27 letters. Loop has 2 letters. [2024-10-31 22:01:24,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:24,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 29 letters. Loop has 2 letters. [2024-10-31 22:01:24,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:24,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 27 letters. Loop has 4 letters. [2024-10-31 22:01:24,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:24,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 82 transitions. [2024-10-31 22:01:24,610 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:01:24,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 0 states and 0 transitions. [2024-10-31 22:01:24,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:01:24,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:01:24,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:01:24,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:01:24,611 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:01:24,611 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:01:24,611 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:01:24,612 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 22:01:24,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:01:24,612 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:01:24,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:01:24,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:01:24 BoogieIcfgContainer [2024-10-31 22:01:24,621 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:01:24,624 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:01:24,624 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:01:24,624 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:01:24,625 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:59" (3/4) ... [2024-10-31 22:01:24,630 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:01:24,634 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:01:24,637 INFO L158 Benchmark]: Toolchain (without parser) took 26407.06ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 128.8MB in the beginning and 75.8MB in the end (delta: 53.0MB). Peak memory consumption was 127.0MB. Max. memory is 16.1GB. [2024-10-31 22:01:24,641 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 115.3MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:01:24,642 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.24ms. Allocated memory is still 159.4MB. Free memory was 128.3MB in the beginning and 110.8MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:01:24,642 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.90ms. Allocated memory is still 159.4MB. Free memory was 110.8MB in the beginning and 108.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:01:24,642 INFO L158 Benchmark]: Boogie Preprocessor took 55.13ms. Allocated memory is still 159.4MB. Free memory was 108.7MB in the beginning and 106.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:01:24,642 INFO L158 Benchmark]: RCFGBuilder took 456.00ms. Allocated memory is still 159.4MB. Free memory was 106.6MB in the beginning and 118.6MB in the end (delta: -12.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:01:24,643 INFO L158 Benchmark]: BuchiAutomizer took 25269.80ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 118.6MB in the beginning and 75.8MB in the end (delta: 42.8MB). Peak memory consumption was 118.9MB. Max. memory is 16.1GB. [2024-10-31 22:01:24,643 INFO L158 Benchmark]: Witness Printer took 12.29ms. Allocated memory is still 232.8MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:01:24,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 115.3MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 562.24ms. Allocated memory is still 159.4MB. Free memory was 128.3MB in the beginning and 110.8MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.90ms. Allocated memory is still 159.4MB. Free memory was 110.8MB in the beginning and 108.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.13ms. Allocated memory is still 159.4MB. Free memory was 108.7MB in the beginning and 106.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.00ms. Allocated memory is still 159.4MB. Free memory was 106.6MB in the beginning and 118.6MB in the end (delta: -12.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 25269.80ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 118.6MB in the beginning and 75.8MB in the end (delta: 42.8MB). Peak memory consumption was 118.9MB. Max. memory is 16.1GB. * Witness Printer took 12.29ms. Allocated memory is still 232.8MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~x1~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~x2~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~x2~0!base,]]] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function null and consists of 4 locations. One deterministic module has affine ranking function null and consists of 4 locations. One nondeterministic module has affine ranking function null and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 25.2s and 8 iterations. TraceHistogramMax:10. Analysis of lassos took 23.5s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 90/90 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 63 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital149 mio100 ax112 hnf100 lsp87 ukn62 mio100 lsp26 div100 bol100 ite100 ukn100 eq163 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms 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! [2024-10-31 22:01:24,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:24,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:01:25,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:01:25,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a332f0-68a2-4152-8aa4-e45255653b1f/bin/uautomizer-verify-4GaUIPS5ZU/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