./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/array12_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/array12_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd --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 b994a1ec31b8c037535d8c99bc15e7231c0aea3fc6bbd2fe006bfaa61a5800c0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:45:43,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:45:43,599 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 15:45:43,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:45:43,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:45:43,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:45:43,659 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:45:43,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:45:43,660 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:45:43,660 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:45:43,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:45:43,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:45:43,660 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:45:43,663 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 15:45:43,664 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 15:45:43,664 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 15:45:43,664 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 15:45:43,665 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 15:45:43,665 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 15:45:43,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:45:43,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 15:45:43,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:45:43,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:45:43,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 15:45:43,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 15:45:43,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 15:45:43,666 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:45:43,667 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:45:43,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:45:43,667 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 15:45:43,667 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:45:43,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:45:43,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:45:43,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:45:43,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:45:43,669 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 15:45:43,669 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd 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 -> b994a1ec31b8c037535d8c99bc15e7231c0aea3fc6bbd2fe006bfaa61a5800c0 [2024-11-13 15:45:44,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:45:44,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:45:44,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:45:44,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:45:44,042 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:45:44,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-15/array12_alloca.i Unable to find full path for "g++" [2024-11-13 15:45:46,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:45:46,681 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:45:46,682 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/sv-benchmarks/c/termination-15/array12_alloca.i [2024-11-13 15:45:46,707 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/data/c6082fec5/d6bd39f38edf44f48e28cc73bbdd1002/FLAG80fcda65e [2024-11-13 15:45:46,736 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/data/c6082fec5/d6bd39f38edf44f48e28cc73bbdd1002 [2024-11-13 15:45:46,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:45:46,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:45:46,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:45:46,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:45:46,757 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:45:46,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:45:46" (1/1) ... [2024-11-13 15:45:46,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a655f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:46, skipping insertion in model container [2024-11-13 15:45:46,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:45:46" (1/1) ... [2024-11-13 15:45:46,802 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:45:47,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:45:47,253 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:45:47,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:45:47,355 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:45:47,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47 WrapperNode [2024-11-13 15:45:47,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:45:47,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:45:47,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:45:47,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:45:47,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (1/1) ... [2024-11-13 15:45:47,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (1/1) ... [2024-11-13 15:45:47,400 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-11-13 15:45:47,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:45:47,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:45:47,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:45:47,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:45:47,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (1/1) ... [2024-11-13 15:45:47,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (1/1) ... [2024-11-13 15:45:47,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (1/1) ... [2024-11-13 15:45:47,440 INFO L175 MemorySlicer]: Split 4 memory accesses to 1 slices as follows [4]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 2 writes are split as follows [2]. [2024-11-13 15:45:47,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (1/1) ... [2024-11-13 15:45:47,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (1/1) ... [2024-11-13 15:45:47,446 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (1/1) ... [2024-11-13 15:45:47,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (1/1) ... [2024-11-13 15:45:47,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (1/1) ... [2024-11-13 15:45:47,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (1/1) ... [2024-11-13 15:45:47,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:45:47,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:45:47,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:45:47,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:45:47,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (1/1) ... [2024-11-13 15:45:47,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:45:47,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:47,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:45:47,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 15:45:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 15:45:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 15:45:47,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:45:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:45:47,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:45:47,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:45:47,633 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:45:47,636 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:45:47,788 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-13 15:45:47,789 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:45:47,799 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:45:47,799 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 15:45:47,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:45:47 BoogieIcfgContainer [2024-11-13 15:45:47,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:45:47,801 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 15:45:47,802 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 15:45:47,808 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 15:45:47,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:45:47,809 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 03:45:46" (1/3) ... [2024-11-13 15:45:47,810 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50acb9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:45:47, skipping insertion in model container [2024-11-13 15:45:47,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:45:47,811 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:45:47" (2/3) ... [2024-11-13 15:45:47,812 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50acb9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:45:47, skipping insertion in model container [2024-11-13 15:45:47,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:45:47,812 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:45:47" (3/3) ... [2024-11-13 15:45:47,814 INFO L333 chiAutomizerObserver]: Analyzing ICFG array12_alloca.i [2024-11-13 15:45:47,898 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 15:45:47,899 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 15:45:47,899 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 15:45:47,899 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 15:45:47,899 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 15:45:47,899 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 15:45:47,899 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 15:45:47,899 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 15:45:47,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:47,926 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2024-11-13 15:45:47,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:45:47,927 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:45:47,932 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-13 15:45:47,932 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:45:47,932 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 15:45:47,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:47,934 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2024-11-13 15:45:47,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:45:47,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:45:47,934 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-13 15:45:47,935 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 15:45:47,943 INFO L745 eck$LassoCheckResult]: Stem: 9#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 10#L367true assume !(main_~length~0#1 < 1); 6#L367-2true call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 3#L369true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 14#L370-2true [2024-11-13 15:45:47,944 INFO L747 eck$LassoCheckResult]: Loop: 14#L370-2true assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 11#L372true assume main_#t~mem208#1 < 0;havoc main_#t~mem208#1;call write~int#0(0, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 15#L372-2true main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 14#L370-2true [2024-11-13 15:45:47,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:47,950 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2024-11-13 15:45:47,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:47,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714331913] [2024-11-13 15:45:47,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:47,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:48,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:48,135 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:48,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:48,138 INFO L85 PathProgramCache]: Analyzing trace with hash 51737, now seen corresponding path program 1 times [2024-11-13 15:45:48,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:48,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28658388] [2024-11-13 15:45:48,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:48,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:48,168 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:48,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:48,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:48,188 INFO L85 PathProgramCache]: Analyzing trace with hash 176707665, now seen corresponding path program 1 times [2024-11-13 15:45:48,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:48,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107448392] [2024-11-13 15:45:48,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:48,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:48,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:48,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:48,715 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:45:48,717 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:45:48,717 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:45:48,718 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:45:48,719 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:45:48,719 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:45:48,719 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:45:48,720 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:45:48,720 INFO L132 ssoRankerPreferences]: Filename of dumped script: array12_alloca.i_Iteration1_Lasso [2024-11-13 15:45:48,720 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:45:48,720 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:45:48,746 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:45:48,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:45:48,766 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:45:49,086 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:45:49,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:45:49,094 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:45:49,098 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:45:49,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:45:49,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:45:49,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:45:49,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:45:49,516 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:45:49,521 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:45:49,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:45:49,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:49,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:45:49,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 15:45:49,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:45:49,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:45:49,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:45:49,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:45:49,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:45:49,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:45:49,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:45:49,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:45:49,563 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:45:49,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-13 15:45:49,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:45:49,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:49,586 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:45:49,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 15:45:49,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:45:49,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:45:49,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:45:49,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:45:49,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:45:49,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:45:49,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:45:49,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:45:49,613 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:45:49,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-13 15:45:49,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:45:49,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:49,636 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:45:49,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 15:45:49,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:45:49,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:45:49,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:45:49,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:45:49,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:45:49,670 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:45:49,670 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:45:49,686 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:45:49,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-13 15:45:49,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:45:49,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:49,710 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:45:49,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 15:45:49,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:45:49,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:45:49,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:45:49,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:45:49,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:45:49,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:45:49,736 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:45:49,743 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:45:49,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-13 15:45:49,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:45:49,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:49,767 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:45:49,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 15:45:49,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:45:49,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:45:49,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:45:49,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:45:49,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:45:49,800 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:45:49,801 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:45:49,822 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:45:49,863 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2024-11-13 15:45:49,867 INFO L444 ModelExtractionUtils]: 1 out of 19 variables were initially zero. Simplification set additionally 14 variables to zero. [2024-11-13 15:45:49,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:45:49,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:49,872 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:45:49,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 15:45:49,876 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:45:49,897 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-13 15:45:49,898 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:45:49,898 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0#1.offset, v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~arr~0#1.offset + 2*v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1 - 4*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-13 15:45:49,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-13 15:45:49,934 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2024-11-13 15:45:49,944 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-13 15:45:49,945 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-13 15:45:49,948 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~arr~0!offset [2024-11-13 15:45:49,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:49,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:45:49,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:45:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:50,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:45:50,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:45:50,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:50,127 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 15:45:50,129 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:50,192 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 40 transitions. Complement of second has 6 states. [2024-11-13 15:45:50,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:45:50,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:50,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2024-11-13 15:45:50,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-13 15:45:50,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:45:50,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 8 letters. Loop has 3 letters. [2024-11-13 15:45:50,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:45:50,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-13 15:45:50,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:45:50,212 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 40 transitions. [2024-11-13 15:45:50,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:45:50,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 12 states and 17 transitions. [2024-11-13 15:45:50,222 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-13 15:45:50,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-13 15:45:50,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2024-11-13 15:45:50,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:45:50,224 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-13 15:45:50,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2024-11-13 15:45:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-13 15:45:50,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-11-13 15:45:50,255 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-13 15:45:50,255 INFO L424 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-13 15:45:50,255 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 15:45:50,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2024-11-13 15:45:50,256 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:45:50,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:45:50,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:45:50,257 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:45:50,257 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:45:50,257 INFO L745 eck$LassoCheckResult]: Stem: 108#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 109#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 110#L367 assume !(main_~length~0#1 < 1); 103#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 104#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 105#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 111#L370-3 main_~j~0#1 := 0; 107#L378-2 [2024-11-13 15:45:50,257 INFO L747 eck$LassoCheckResult]: Loop: 107#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 106#L378 assume main_#t~mem210#1 < 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 107#L378-2 [2024-11-13 15:45:50,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:50,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815510, now seen corresponding path program 1 times [2024-11-13 15:45:50,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:50,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707324689] [2024-11-13 15:45:50,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:50,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:50,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:45:50,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707324689] [2024-11-13 15:45:50,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707324689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:45:50,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:45:50,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:45:50,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677616805] [2024-11-13 15:45:50,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:45:50,411 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 15:45:50,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:50,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 1 times [2024-11-13 15:45:50,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:50,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308465412] [2024-11-13 15:45:50,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:50,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:50,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:50,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:50,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:45:50,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:45:50,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:45:50,527 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:50,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:45:50,562 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2024-11-13 15:45:50,562 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2024-11-13 15:45:50,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:45:50,563 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2024-11-13 15:45:50,564 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-13 15:45:50,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-13 15:45:50,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2024-11-13 15:45:50,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:45:50,564 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-11-13 15:45:50,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2024-11-13 15:45:50,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2024-11-13 15:45:50,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 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) [2024-11-13 15:45:50,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2024-11-13 15:45:50,566 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-11-13 15:45:50,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:45:50,567 INFO L424 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-11-13 15:45:50,567 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 15:45:50,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2024-11-13 15:45:50,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:45:50,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:45:50,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:45:50,568 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:45:50,569 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:45:50,569 INFO L745 eck$LassoCheckResult]: Stem: 141#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 142#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 143#L367 assume !(main_~length~0#1 < 1); 136#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 137#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 138#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 145#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 146#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 147#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 144#L370-3 main_~j~0#1 := 0; 140#L378-2 [2024-11-13 15:45:50,569 INFO L747 eck$LassoCheckResult]: Loop: 140#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 139#L378 assume main_#t~mem210#1 < 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 140#L378-2 [2024-11-13 15:45:50,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:50,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1982565540, now seen corresponding path program 1 times [2024-11-13 15:45:50,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:50,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694699045] [2024-11-13 15:45:50,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:50,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:50,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:50,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:50,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:50,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 2 times [2024-11-13 15:45:50,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:50,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007813323] [2024-11-13 15:45:50,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:50,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:50,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:50,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:50,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:50,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1719996799, now seen corresponding path program 1 times [2024-11-13 15:45:50,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:50,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138939345] [2024-11-13 15:45:50,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:50,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:50,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-13 15:45:51,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:51,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:45:51,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138939345] [2024-11-13 15:45:51,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138939345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:45:51,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873673903] [2024-11-13 15:45:51,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:51,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:45:51,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:51,328 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:45:51,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:45:51,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:51,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 15:45:51,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:45:51,477 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 15 treesize of output 1 [2024-11-13 15:45:51,578 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 [2024-11-13 15:45:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:51,595 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:45:51,707 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 16 treesize of output 14 [2024-11-13 15:45:51,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2024-11-13 15:45:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:51,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873673903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:45:51,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:45:51,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 15 [2024-11-13 15:45:51,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813167454] [2024-11-13 15:45:51,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:45:51,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:45:51,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 15:45:51,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:45:51,795 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 16 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:51,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:45:51,975 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2024-11-13 15:45:51,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 30 transitions. [2024-11-13 15:45:51,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-13 15:45:51,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 30 transitions. [2024-11-13 15:45:51,977 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-13 15:45:51,977 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-13 15:45:51,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2024-11-13 15:45:51,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:45:51,977 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 30 transitions. [2024-11-13 15:45:51,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2024-11-13 15:45:51,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2024-11-13 15:45:51,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.368421052631579) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:51,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2024-11-13 15:45:51,982 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 26 transitions. [2024-11-13 15:45:51,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:45:51,983 INFO L424 stractBuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2024-11-13 15:45:51,983 INFO L331 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-13 15:45:51,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2024-11-13 15:45:51,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:45:51,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:45:51,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:45:51,986 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:45:51,986 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:45:51,986 INFO L745 eck$LassoCheckResult]: Stem: 266#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 267#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 268#L367 assume !(main_~length~0#1 < 1); 261#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 262#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 263#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 273#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 279#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 274#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 275#L370-3 main_~j~0#1 := 0; 272#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 264#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 265#L378-2 [2024-11-13 15:45:51,986 INFO L747 eck$LassoCheckResult]: Loop: 265#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 278#L378 assume main_#t~mem210#1 < 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 265#L378-2 [2024-11-13 15:45:51,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:51,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1719996801, now seen corresponding path program 1 times [2024-11-13 15:45:51,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:51,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541624326] [2024-11-13 15:45:51,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:51,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:52,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:52,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:52,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:52,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 3 times [2024-11-13 15:45:52,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:52,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353422775] [2024-11-13 15:45:52,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:52,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:52,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:52,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:52,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:52,025 INFO L85 PathProgramCache]: Analyzing trace with hash -645481884, now seen corresponding path program 1 times [2024-11-13 15:45:52,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:52,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532468415] [2024-11-13 15:45:52,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:52,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:52,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:45:52,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532468415] [2024-11-13 15:45:52,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532468415] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:45:52,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667445369] [2024-11-13 15:45:52,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:52,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:45:52,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:52,173 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:45:52,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 15:45:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:52,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:45:52,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:45:52,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:52,318 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:45:52,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:52,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667445369] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:45:52,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:45:52,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-13 15:45:52,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058884552] [2024-11-13 15:45:52,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:45:52,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:45:52,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:45:52,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:45:52,451 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:52,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:45:52,578 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2024-11-13 15:45:52,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2024-11-13 15:45:52,580 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-13 15:45:52,580 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 39 states and 51 transitions. [2024-11-13 15:45:52,581 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-13 15:45:52,581 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-13 15:45:52,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 51 transitions. [2024-11-13 15:45:52,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:45:52,581 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 51 transitions. [2024-11-13 15:45:52,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 51 transitions. [2024-11-13 15:45:52,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2024-11-13 15:45:52,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 33 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:52,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2024-11-13 15:45:52,585 INFO L240 hiAutomatonCegarLoop]: Abstraction has 34 states and 45 transitions. [2024-11-13 15:45:52,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:45:52,586 INFO L424 stractBuchiCegarLoop]: Abstraction has 34 states and 45 transitions. [2024-11-13 15:45:52,586 INFO L331 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-13 15:45:52,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 45 transitions. [2024-11-13 15:45:52,586 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-13 15:45:52,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:45:52,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:45:52,587 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:45:52,587 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:45:52,587 INFO L745 eck$LassoCheckResult]: Stem: 428#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 429#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 430#L367 assume main_~length~0#1 < 1;main_~length~0#1 := 1; 431#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 456#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 437#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 434#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 435#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 440#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 453#L372 assume main_#t~mem208#1 < 0;havoc main_#t~mem208#1;call write~int#0(0, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 443#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 441#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 432#L370-3 main_~j~0#1 := 0; 433#L378-2 [2024-11-13 15:45:52,587 INFO L747 eck$LassoCheckResult]: Loop: 433#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 444#L378 assume main_#t~mem210#1 < 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 433#L378-2 [2024-11-13 15:45:52,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:52,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1080825110, now seen corresponding path program 1 times [2024-11-13 15:45:52,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:52,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128610106] [2024-11-13 15:45:52,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:52,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:52,655 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:52,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:45:52,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128610106] [2024-11-13 15:45:52,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128610106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:45:52,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424294694] [2024-11-13 15:45:52,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:52,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:45:52,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:52,658 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:45:52,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 15:45:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:52,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:45:52,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:45:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:52,771 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:45:52,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424294694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:45:52,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:45:52,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-13 15:45:52,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574499797] [2024-11-13 15:45:52,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:45:52,772 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 15:45:52,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:52,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 4 times [2024-11-13 15:45:52,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:52,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567812475] [2024-11-13 15:45:52,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:52,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:52,777 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:52,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:52,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:45:52,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:45:52,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:45:52,846 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:52,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:45:52,871 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2024-11-13 15:45:52,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2024-11-13 15:45:52,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:45:52,873 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 21 states and 27 transitions. [2024-11-13 15:45:52,873 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-13 15:45:52,873 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-13 15:45:52,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2024-11-13 15:45:52,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:45:52,873 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 27 transitions. [2024-11-13 15:45:52,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2024-11-13 15:45:52,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-13 15:45:52,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:52,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2024-11-13 15:45:52,875 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 27 transitions. [2024-11-13 15:45:52,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:45:52,876 INFO L424 stractBuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2024-11-13 15:45:52,876 INFO L331 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-13 15:45:52,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 27 transitions. [2024-11-13 15:45:52,877 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:45:52,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:45:52,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:45:52,878 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:45:52,878 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:45:52,878 INFO L745 eck$LassoCheckResult]: Stem: 535#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 536#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 537#L367 assume !(main_~length~0#1 < 1); 530#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 531#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 532#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 539#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 540#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 542#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 543#L372 assume main_#t~mem208#1 < 0;havoc main_#t~mem208#1;call write~int#0(0, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 549#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 546#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 538#L370-3 main_~j~0#1 := 0; 534#L378-2 [2024-11-13 15:45:52,878 INFO L747 eck$LassoCheckResult]: Loop: 534#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 541#L378 assume main_#t~mem210#1 < 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 534#L378-2 [2024-11-13 15:45:52,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:52,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1781889688, now seen corresponding path program 1 times [2024-11-13 15:45:52,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:52,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26486579] [2024-11-13 15:45:52,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:52,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:52,890 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:52,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:52,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:52,900 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 5 times [2024-11-13 15:45:52,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:52,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076910964] [2024-11-13 15:45:52,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:52,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:52,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:52,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:52,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:52,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1295959621, now seen corresponding path program 1 times [2024-11-13 15:45:52,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:52,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407710237] [2024-11-13 15:45:52,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:52,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:53,486 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:53,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:45:53,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407710237] [2024-11-13 15:45:53,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407710237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:45:53,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369552339] [2024-11-13 15:45:53,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:53,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:45:53,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:53,491 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:45:53,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 15:45:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:53,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 15:45:53,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:45:53,593 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 15 treesize of output 1 [2024-11-13 15:45:53,683 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-13 15:45:53,683 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 1 case distinctions, treesize of input 31 treesize of output 11 [2024-11-13 15:45:53,716 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-13 15:45:53,716 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 1 case distinctions, treesize of input 23 treesize of output 22 [2024-11-13 15:45:53,914 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-13 15:45:53,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2024-11-13 15:45:53,939 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:53,939 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:45:54,157 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 16 treesize of output 14 [2024-11-13 15:45:54,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2024-11-13 15:45:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:45:54,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369552339] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:45:54,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:45:54,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 7] total 21 [2024-11-13 15:45:54,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599690947] [2024-11-13 15:45:54,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:45:54,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:45:54,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 15:45:54,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2024-11-13 15:45:54,246 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. cyclomatic complexity: 9 Second operand has 22 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 22 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:55,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:45:55,055 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2024-11-13 15:45:55,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2024-11-13 15:45:55,056 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-13 15:45:55,057 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 38 transitions. [2024-11-13 15:45:55,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2024-11-13 15:45:55,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-13 15:45:55,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 38 transitions. [2024-11-13 15:45:55,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:45:55,057 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 38 transitions. [2024-11-13 15:45:55,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 38 transitions. [2024-11-13 15:45:55,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 17. [2024-11-13 15:45:55,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:55,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-11-13 15:45:55,059 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-13 15:45:55,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:45:55,061 INFO L424 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-13 15:45:55,061 INFO L331 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-13 15:45:55,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2024-11-13 15:45:55,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:45:55,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:45:55,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:45:55,062 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:45:55,062 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:45:55,062 INFO L745 eck$LassoCheckResult]: Stem: 709#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 710#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 711#L367 assume !(main_~length~0#1 < 1); 704#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 705#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 706#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 716#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 719#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 717#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 714#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 715#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 718#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 712#L370-3 main_~j~0#1 := 0; 713#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 707#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 708#L378-2 [2024-11-13 15:45:55,062 INFO L747 eck$LassoCheckResult]: Loop: 708#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 720#L378 assume main_#t~mem210#1 < 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 708#L378-2 [2024-11-13 15:45:55,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:55,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1238701317, now seen corresponding path program 2 times [2024-11-13 15:45:55,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:55,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181681619] [2024-11-13 15:45:55,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:55,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:55,077 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:55,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:55,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:55,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 6 times [2024-11-13 15:45:55,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:55,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885948374] [2024-11-13 15:45:55,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:55,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:55,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:55,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:55,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:55,098 INFO L85 PathProgramCache]: Analyzing trace with hash -686023330, now seen corresponding path program 2 times [2024-11-13 15:45:55,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:55,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498863646] [2024-11-13 15:45:55,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:55,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:55,375 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:55,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:45:55,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498863646] [2024-11-13 15:45:55,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498863646] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:45:55,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198743928] [2024-11-13 15:45:55,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:45:55,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:45:55,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:55,380 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:45:55,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 15:45:55,458 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:45:55,459 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:45:55,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:45:55,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:45:55,550 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 15 treesize of output 1 [2024-11-13 15:45:55,702 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 [2024-11-13 15:45:55,706 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:55,706 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:45:55,819 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 18 treesize of output 16 [2024-11-13 15:45:55,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2024-11-13 15:45:55,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:55,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198743928] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:45:55,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:45:55,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 18 [2024-11-13 15:45:55,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502337820] [2024-11-13 15:45:55,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:45:55,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:45:55,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 15:45:55,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:45:55,905 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 19 states, 18 states have (on average 2.0) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:56,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:45:56,190 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2024-11-13 15:45:56,191 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 37 transitions. [2024-11-13 15:45:56,191 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-13 15:45:56,195 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 37 transitions. [2024-11-13 15:45:56,195 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-13 15:45:56,196 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-13 15:45:56,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2024-11-13 15:45:56,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:45:56,196 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 37 transitions. [2024-11-13 15:45:56,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2024-11-13 15:45:56,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2024-11-13 15:45:56,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:56,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2024-11-13 15:45:56,198 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 31 transitions. [2024-11-13 15:45:56,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:45:56,199 INFO L424 stractBuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2024-11-13 15:45:56,202 INFO L331 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-13 15:45:56,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2024-11-13 15:45:56,203 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:45:56,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:45:56,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:45:56,203 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:45:56,203 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:45:56,204 INFO L745 eck$LassoCheckResult]: Stem: 883#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 884#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 885#L367 assume !(main_~length~0#1 < 1); 878#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 879#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 880#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 890#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 895#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 891#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 887#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 888#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 892#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 893#L370-3 main_~j~0#1 := 0; 898#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 881#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 882#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 889#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 897#L378-2 [2024-11-13 15:45:56,204 INFO L747 eck$LassoCheckResult]: Loop: 897#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 896#L378 assume main_#t~mem210#1 < 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 897#L378-2 [2024-11-13 15:45:56,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:56,204 INFO L85 PathProgramCache]: Analyzing trace with hash -686023328, now seen corresponding path program 3 times [2024-11-13 15:45:56,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:56,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542885363] [2024-11-13 15:45:56,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:56,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:56,224 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:56,245 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:56,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:56,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 7 times [2024-11-13 15:45:56,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:56,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612257534] [2024-11-13 15:45:56,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:56,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:56,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:56,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:56,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:56,259 INFO L85 PathProgramCache]: Analyzing trace with hash -2138420605, now seen corresponding path program 3 times [2024-11-13 15:45:56,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:56,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288485079] [2024-11-13 15:45:56,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:56,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:56,450 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:56,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:45:56,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288485079] [2024-11-13 15:45:56,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288485079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:45:56,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29967550] [2024-11-13 15:45:56,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 15:45:56,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:45:56,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:56,453 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:45:56,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 15:45:56,529 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 15:45:56,530 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:45:56,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:45:56,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:45:56,629 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:56,629 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:45:56,711 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:56,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29967550] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:45:56,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:45:56,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-13 15:45:56,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083366488] [2024-11-13 15:45:56,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:45:56,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:45:56,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:45:56,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:45:56,791 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. cyclomatic complexity: 10 Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 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) [2024-11-13 15:45:56,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:45:56,890 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2024-11-13 15:45:56,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 43 transitions. [2024-11-13 15:45:56,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:45:56,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 29 states and 37 transitions. [2024-11-13 15:45:56,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-13 15:45:56,891 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-13 15:45:56,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2024-11-13 15:45:56,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:45:56,892 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 37 transitions. [2024-11-13 15:45:56,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2024-11-13 15:45:56,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2024-11-13 15:45:56,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:56,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-11-13 15:45:56,894 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-11-13 15:45:56,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:45:56,895 INFO L424 stractBuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-11-13 15:45:56,896 INFO L331 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-13 15:45:56,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2024-11-13 15:45:56,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:45:56,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:45:56,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:45:56,897 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:45:56,897 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:45:56,897 INFO L745 eck$LassoCheckResult]: Stem: 1069#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1070#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 1071#L367 assume !(main_~length~0#1 < 1); 1064#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 1065#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 1066#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1077#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 1079#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1080#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1082#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 1083#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1078#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1074#L372 assume main_#t~mem208#1 < 0;havoc main_#t~mem208#1;call write~int#0(0, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1075#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1088#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 1087#L370-3 main_~j~0#1 := 0; 1068#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1086#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 1085#L378-2 [2024-11-13 15:45:56,897 INFO L747 eck$LassoCheckResult]: Loop: 1085#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1084#L378 assume main_#t~mem210#1 < 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 1085#L378-2 [2024-11-13 15:45:56,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:56,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1742222851, now seen corresponding path program 1 times [2024-11-13 15:45:56,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:56,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923464151] [2024-11-13 15:45:56,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:56,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:56,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:56,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:56,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:56,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 8 times [2024-11-13 15:45:56,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:56,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868903289] [2024-11-13 15:45:56,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:56,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:56,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:56,942 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:56,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:56,942 INFO L85 PathProgramCache]: Analyzing trace with hash -761084314, now seen corresponding path program 1 times [2024-11-13 15:45:56,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:56,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504333816] [2024-11-13 15:45:56,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:56,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:57,439 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:57,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:45:57,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504333816] [2024-11-13 15:45:57,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504333816] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:45:57,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597357811] [2024-11-13 15:45:57,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:57,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:45:57,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:57,443 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:45:57,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 15:45:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:57,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 15:45:57,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:45:57,537 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 19 treesize of output 1 [2024-11-13 15:45:57,618 INFO L349 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2024-11-13 15:45:57,618 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 1 case distinctions, treesize of input 33 treesize of output 13 [2024-11-13 15:45:57,641 INFO L349 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2024-11-13 15:45:57,641 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 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-13 15:45:57,932 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-13 15:45:57,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2024-11-13 15:45:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:57,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:45:58,122 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 18 treesize of output 16 [2024-11-13 15:45:58,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2024-11-13 15:45:58,140 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:45:58,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597357811] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:45:58,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:45:58,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 9] total 18 [2024-11-13 15:45:58,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722452548] [2024-11-13 15:45:58,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:45:58,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:45:58,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 15:45:58,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:45:58,206 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. cyclomatic complexity: 10 Second operand has 19 states, 18 states have (on average 2.111111111111111) internal successors, (38), 19 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:58,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:45:58,929 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2024-11-13 15:45:58,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 48 transitions. [2024-11-13 15:45:58,930 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-13 15:45:58,931 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 48 transitions. [2024-11-13 15:45:58,931 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-13 15:45:58,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-13 15:45:58,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2024-11-13 15:45:58,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:45:58,931 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2024-11-13 15:45:58,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2024-11-13 15:45:58,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 22. [2024-11-13 15:45:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:45:58,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2024-11-13 15:45:58,933 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-11-13 15:45:58,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 15:45:58,934 INFO L424 stractBuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-11-13 15:45:58,935 INFO L331 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-13 15:45:58,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2024-11-13 15:45:58,935 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:45:58,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:45:58,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:45:58,935 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:45:58,936 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:45:58,936 INFO L745 eck$LassoCheckResult]: Stem: 1280#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1281#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 1282#L367 assume !(main_~length~0#1 < 1); 1275#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 1276#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 1277#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1288#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 1290#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1291#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1293#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 1294#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1289#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1285#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 1286#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1292#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 1283#L370-3 main_~j~0#1 := 0; 1284#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1278#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 1279#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1287#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 1296#L378-2 [2024-11-13 15:45:58,936 INFO L747 eck$LassoCheckResult]: Loop: 1296#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1295#L378 assume main_#t~mem210#1 < 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 1296#L378-2 [2024-11-13 15:45:58,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:58,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1570430938, now seen corresponding path program 4 times [2024-11-13 15:45:58,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:58,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505702384] [2024-11-13 15:45:58,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:58,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:58,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:58,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:58,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:58,967 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 9 times [2024-11-13 15:45:58,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:58,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844286576] [2024-11-13 15:45:58,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:58,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:58,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:45:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:45:58,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:45:58,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:45:58,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1650609207, now seen corresponding path program 4 times [2024-11-13 15:45:58,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:45:58,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405135918] [2024-11-13 15:45:58,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:45:58,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:45:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:45:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:59,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:45:59,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405135918] [2024-11-13 15:45:59,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405135918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:45:59,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264525861] [2024-11-13 15:45:59,312 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 15:45:59,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:45:59,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:45:59,315 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:45:59,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 15:45:59,421 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 15:45:59,421 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:45:59,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:45:59,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:45:59,452 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 19 treesize of output 1 [2024-11-13 15:45:59,554 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 19 treesize of output 7 [2024-11-13 15:45:59,557 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:59,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:45:59,679 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 18 treesize of output 16 [2024-11-13 15:45:59,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2024-11-13 15:45:59,701 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:45:59,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264525861] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:45:59,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:45:59,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 16 [2024-11-13 15:45:59,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245445865] [2024-11-13 15:45:59,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:45:59,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:45:59,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 15:45:59,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:45:59,773 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 7 Second operand has 17 states, 16 states have (on average 2.125) internal successors, (34), 17 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:00,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:00,001 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2024-11-13 15:46:00,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 45 transitions. [2024-11-13 15:46:00,002 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-13 15:46:00,003 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 45 transitions. [2024-11-13 15:46:00,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-11-13 15:46:00,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-11-13 15:46:00,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2024-11-13 15:46:00,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:46:00,004 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 45 transitions. [2024-11-13 15:46:00,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2024-11-13 15:46:00,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2024-11-13 15:46:00,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 28 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:00,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2024-11-13 15:46:00,009 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 37 transitions. [2024-11-13 15:46:00,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:46:00,013 INFO L424 stractBuchiCegarLoop]: Abstraction has 29 states and 37 transitions. [2024-11-13 15:46:00,013 INFO L331 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-11-13 15:46:00,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 37 transitions. [2024-11-13 15:46:00,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:46:00,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:46:00,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:46:00,014 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:46:00,014 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:46:00,014 INFO L745 eck$LassoCheckResult]: Stem: 1488#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1489#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 1490#L367 assume !(main_~length~0#1 < 1); 1483#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 1484#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 1485#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1495#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 1500#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1501#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1502#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 1503#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1496#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1493#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 1494#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1497#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 1498#L370-3 main_~j~0#1 := 0; 1508#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1486#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 1487#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1492#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 1507#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1506#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 1505#L378-2 [2024-11-13 15:46:00,014 INFO L747 eck$LassoCheckResult]: Loop: 1505#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1504#L378 assume main_#t~mem210#1 < 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 1505#L378-2 [2024-11-13 15:46:00,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:00,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1650609205, now seen corresponding path program 5 times [2024-11-13 15:46:00,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:00,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021145362] [2024-11-13 15:46:00,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:00,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:00,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:46:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:00,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:46:00,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:00,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 10 times [2024-11-13 15:46:00,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:00,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106042210] [2024-11-13 15:46:00,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:00,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:00,069 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:46:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:00,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:46:00,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:00,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1392512466, now seen corresponding path program 5 times [2024-11-13 15:46:00,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:00,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456594404] [2024-11-13 15:46:00,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:00,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:00,275 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:00,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:00,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456594404] [2024-11-13 15:46:00,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456594404] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:46:00,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231384202] [2024-11-13 15:46:00,275 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 15:46:00,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:46:00,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:00,278 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:46:00,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 15:46:00,373 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-13 15:46:00,373 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:46:00,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 15:46:00,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:46:00,517 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:00,517 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:46:00,630 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:00,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231384202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:46:00,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:46:00,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2024-11-13 15:46:00,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169547772] [2024-11-13 15:46:00,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:46:00,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:00,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 15:46:00,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:46:00,697 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. cyclomatic complexity: 11 Second operand has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 17 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:00,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:00,826 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2024-11-13 15:46:00,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 51 transitions. [2024-11-13 15:46:00,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:46:00,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 34 states and 43 transitions. [2024-11-13 15:46:00,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-13 15:46:00,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-13 15:46:00,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 43 transitions. [2024-11-13 15:46:00,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:46:00,828 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 43 transitions. [2024-11-13 15:46:00,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 43 transitions. [2024-11-13 15:46:00,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2024-11-13 15:46:00,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:00,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2024-11-13 15:46:00,831 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 39 transitions. [2024-11-13 15:46:00,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:46:00,832 INFO L424 stractBuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2024-11-13 15:46:00,832 INFO L331 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2024-11-13 15:46:00,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2024-11-13 15:46:00,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:46:00,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:46:00,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:46:00,834 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:46:00,834 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:46:00,834 INFO L745 eck$LassoCheckResult]: Stem: 1719#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1720#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 1721#L367 assume !(main_~length~0#1 < 1); 1714#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 1715#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 1716#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1726#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 1736#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1727#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1723#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 1724#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1728#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1735#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 1734#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1732#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1733#L372 assume main_#t~mem208#1 < 0;havoc main_#t~mem208#1;call write~int#0(0, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1731#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1729#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 1722#L370-3 main_~j~0#1 := 0; 1718#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1725#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 1740#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1739#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 1738#L378-2 [2024-11-13 15:46:00,835 INFO L747 eck$LassoCheckResult]: Loop: 1738#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1737#L378 assume main_#t~mem210#1 < 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 1738#L378-2 [2024-11-13 15:46:00,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:00,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1476167138, now seen corresponding path program 2 times [2024-11-13 15:46:00,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:00,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913243126] [2024-11-13 15:46:00,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:00,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:00,890 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:46:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:00,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:46:00,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:00,915 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 11 times [2024-11-13 15:46:00,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:00,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932735868] [2024-11-13 15:46:00,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:00,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:00,923 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:46:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:00,926 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:46:00,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:00,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1257413253, now seen corresponding path program 2 times [2024-11-13 15:46:00,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:00,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606001284] [2024-11-13 15:46:00,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:00,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:01,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:01,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606001284] [2024-11-13 15:46:01,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606001284] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:46:01,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097267382] [2024-11-13 15:46:01,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:46:01,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:46:01,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:01,414 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:46:01,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 15:46:01,517 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:46:01,517 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:46:01,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 15:46:01,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:46:01,662 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 15 treesize of output 1 [2024-11-13 15:46:01,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 15:46:01,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-13 15:46:01,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 15:46:01,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-13 15:46:02,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 15:46:02,202 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 15:46:02,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2024-11-13 15:46:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:02,208 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:46:02,404 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 18 treesize of output 16 [2024-11-13 15:46:02,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2024-11-13 15:46:02,432 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:46:02,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097267382] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:46:02,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:46:02,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 11] total 26 [2024-11-13 15:46:02,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673096751] [2024-11-13 15:46:02,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:46:02,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:02,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 15:46:02,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2024-11-13 15:46:02,510 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. cyclomatic complexity: 11 Second operand has 27 states, 26 states have (on average 2.0384615384615383) internal successors, (53), 27 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:03,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:03,117 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2024-11-13 15:46:03,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 58 transitions. [2024-11-13 15:46:03,117 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-13 15:46:03,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 58 transitions. [2024-11-13 15:46:03,118 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2024-11-13 15:46:03,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2024-11-13 15:46:03,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 58 transitions. [2024-11-13 15:46:03,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:46:03,119 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 58 transitions. [2024-11-13 15:46:03,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 58 transitions. [2024-11-13 15:46:03,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 27. [2024-11-13 15:46:03,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:03,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2024-11-13 15:46:03,122 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 33 transitions. [2024-11-13 15:46:03,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 15:46:03,123 INFO L424 stractBuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2024-11-13 15:46:03,123 INFO L331 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2024-11-13 15:46:03,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2024-11-13 15:46:03,124 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:46:03,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:46:03,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:46:03,125 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:46:03,125 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:46:03,125 INFO L745 eck$LassoCheckResult]: Stem: 1990#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1991#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 1992#L367 assume !(main_~length~0#1 < 1); 1985#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 1986#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 1987#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1998#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 2007#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1999#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2000#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 2001#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2002#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2006#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 2005#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2004#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1995#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 1996#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2003#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 1993#L370-3 main_~j~0#1 := 0; 1994#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1988#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 1989#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1997#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 2011#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2010#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 2009#L378-2 [2024-11-13 15:46:03,125 INFO L747 eck$LassoCheckResult]: Loop: 2009#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2008#L378 assume main_#t~mem210#1 < 0;havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := main_#t~post211#1 - 1;havoc main_#t~post211#1; 2009#L378-2 [2024-11-13 15:46:03,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:03,126 INFO L85 PathProgramCache]: Analyzing trace with hash 864386245, now seen corresponding path program 6 times [2024-11-13 15:46:03,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:03,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590385362] [2024-11-13 15:46:03,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:03,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:03,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:46:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:03,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:46:03,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:03,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2276, now seen corresponding path program 12 times [2024-11-13 15:46:03,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:03,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595338382] [2024-11-13 15:46:03,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:03,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:03,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:46:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:03,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:46:03,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:03,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1746494632, now seen corresponding path program 6 times [2024-11-13 15:46:03,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:03,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120774023] [2024-11-13 15:46:03,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:03,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:03,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:03,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120774023] [2024-11-13 15:46:03,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120774023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:46:03,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112225407] [2024-11-13 15:46:03,538 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-13 15:46:03,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:46:03,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:03,540 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:46:03,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 15:46:03,650 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-13 15:46:03,650 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:46:03,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 15:46:03,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:46:03,767 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 23 treesize of output 1 [2024-11-13 15:46:04,308 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-13 15:46:04,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2024-11-13 15:46:04,313 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:04,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:46:05,003 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 20 treesize of output 18 [2024-11-13 15:46:05,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2024-11-13 15:46:05,117 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:05,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112225407] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:46:05,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:46:05,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 14] total 33 [2024-11-13 15:46:05,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732896633] [2024-11-13 15:46:05,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:46:05,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:05,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 15:46:05,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=967, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 15:46:05,185 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. cyclomatic complexity: 8 Second operand has 34 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 34 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:08,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:08,012 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2024-11-13 15:46:08,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 47 transitions. [2024-11-13 15:46:08,012 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2024-11-13 15:46:08,013 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 40 states and 47 transitions. [2024-11-13 15:46:08,013 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-11-13 15:46:08,013 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-13 15:46:08,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 47 transitions. [2024-11-13 15:46:08,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:46:08,014 INFO L218 hiAutomatonCegarLoop]: Abstraction has 40 states and 47 transitions. [2024-11-13 15:46:08,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 47 transitions. [2024-11-13 15:46:08,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 21. [2024-11-13 15:46:08,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:08,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2024-11-13 15:46:08,016 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 26 transitions. [2024-11-13 15:46:08,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-13 15:46:08,017 INFO L424 stractBuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2024-11-13 15:46:08,017 INFO L331 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2024-11-13 15:46:08,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2024-11-13 15:46:08,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:46:08,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:46:08,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:46:08,019 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:46:08,019 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:46:08,019 INFO L745 eck$LassoCheckResult]: Stem: 2298#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2299#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 2300#L367 assume !(main_~length~0#1 < 1); 2293#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 2294#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 2295#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2305#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 2313#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2306#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2302#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 2303#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2304#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2312#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 2311#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2310#L370-2 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet207#1;call write~int#0(main_#t~nondet207#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~nondet207#1;call main_#t~mem208#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2308#L372 assume !(main_#t~mem208#1 < 0);havoc main_#t~mem208#1; 2309#L372-2 main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2307#L370-2 assume !(main_~i~0#1 < main_~length~0#1); 2301#L370-3 main_~j~0#1 := 0; 2297#L378-2 [2024-11-13 15:46:08,019 INFO L747 eck$LassoCheckResult]: Loop: 2297#L378-2 assume !!(0 <= main_~j~0#1 && main_~j~0#1 < main_~length~0#1);call main_#t~mem210#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2296#L378 assume !(main_#t~mem210#1 < 0);havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post212#1;havoc main_#t~post212#1; 2297#L378-2 [2024-11-13 15:46:08,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:08,020 INFO L85 PathProgramCache]: Analyzing trace with hash -49003114, now seen corresponding path program 2 times [2024-11-13 15:46:08,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:08,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332442752] [2024-11-13 15:46:08,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:08,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:08,032 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:46:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:08,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:46:08,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:08,042 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 1 times [2024-11-13 15:46:08,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:08,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471034229] [2024-11-13 15:46:08,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:08,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:08,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:46:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:08,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:46:08,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:08,055 INFO L85 PathProgramCache]: Analyzing trace with hash 152649019, now seen corresponding path program 7 times [2024-11-13 15:46:08,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:08,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312193175] [2024-11-13 15:46:08,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:08,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:08,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:46:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:46:08,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:46:08,951 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:46:08,952 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:46:08,952 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:46:08,952 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:46:08,952 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:46:08,952 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:08,952 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:46:08,952 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:46:08,952 INFO L132 ssoRankerPreferences]: Filename of dumped script: array12_alloca.i_Iteration14_Lasso [2024-11-13 15:46:08,952 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:46:08,952 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:46:08,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:46:08,965 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:46:08,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:46:09,010 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:46:09,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:46:09,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:46:09,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:46:09,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:46:09,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:46:09,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:46:09,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:46:09,622 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:46:09,622 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:46:09,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:09,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:09,627 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:09,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-13 15:46:09,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:09,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:09,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:46:09,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:09,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:09,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:09,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:46:09,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:46:09,652 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:09,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-13 15:46:09,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:09,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:09,669 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:09,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-13 15:46:09,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:09,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:09,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:46:09,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:09,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:09,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:09,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:46:09,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:46:09,683 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:09,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-13 15:46:09,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:09,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:09,699 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:09,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-13 15:46:09,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:09,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:09,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:46:09,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:09,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:09,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:09,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:46:09,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:46:09,714 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:09,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-13 15:46:09,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:09,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:09,728 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:09,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-13 15:46:09,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:09,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:09,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:46:09,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:09,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:09,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:09,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:46:09,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:46:09,743 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:09,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-13 15:46:09,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:09,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:09,757 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:09,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-13 15:46:09,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:09,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:09,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:46:09,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:09,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:09,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:09,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:46:09,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:46:09,772 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:09,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-13 15:46:09,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:09,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:09,786 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:09,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-13 15:46:09,788 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:09,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:09,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:46:09,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:09,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:09,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:09,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:46:09,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:46:09,801 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:09,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-13 15:46:09,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:09,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:09,827 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:09,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-13 15:46:09,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:09,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:09,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:46:09,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:09,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:09,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:09,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:46:09,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:46:09,851 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:09,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-13 15:46:09,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:09,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:09,867 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:09,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-13 15:46:09,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:09,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:09,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:46:09,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:09,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:09,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:09,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:46:09,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:46:09,886 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:09,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-13 15:46:09,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:09,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:09,910 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:09,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:09,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-13 15:46:09,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:09,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:46:09,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:09,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:09,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:09,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:46:09,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:46:09,940 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:09,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-13 15:46:09,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:09,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:09,962 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:09,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-13 15:46:09,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:09,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:09,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:46:09,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:09,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:09,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:09,977 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:46:09,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:46:09,979 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:09,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-13 15:46:09,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:09,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:09,994 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:09,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-13 15:46:09,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:10,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:10,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:10,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:10,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:10,010 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:46:10,010 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:46:10,013 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:10,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-13 15:46:10,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:10,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:10,028 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:10,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-13 15:46:10,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:10,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:10,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:10,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:10,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:10,049 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:46:10,050 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:46:10,057 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:10,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-13 15:46:10,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:10,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:10,073 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:10,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-13 15:46:10,075 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:10,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:10,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:10,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:10,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:10,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:46:10,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:46:10,093 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:10,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-13 15:46:10,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:10,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:10,108 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:10,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-13 15:46:10,111 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:10,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:10,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:10,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:10,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:10,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:46:10,128 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:46:10,136 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:10,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-13 15:46:10,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:10,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:10,152 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:10,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-13 15:46:10,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:10,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:10,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:10,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:10,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:10,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:46:10,169 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:46:10,173 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:46:10,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-13 15:46:10,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:10,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:10,188 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:10,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-13 15:46:10,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 15:46:10,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:46:10,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:46:10,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:46:10,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:46:10,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:46:10,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:46:10,223 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:46:10,246 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2024-11-13 15:46:10,246 INFO L444 ModelExtractionUtils]: 6 out of 19 variables were initially zero. Simplification set additionally 10 variables to zero. [2024-11-13 15:46:10,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:46:10,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:10,249 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:10,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-13 15:46:10,252 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:46:10,269 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-13 15:46:10,269 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:46:10,269 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~length~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2024-11-13 15:46:10,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-13 15:46:10,305 INFO L156 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2024-11-13 15:46:10,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:10,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:46:10,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:46:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:10,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:46:10,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:46:10,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:10,408 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 15:46:10,408 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:10,438 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 23 states and 29 transitions. Complement of second has 4 states. [2024-11-13 15:46:10,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 15:46:10,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:10,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2024-11-13 15:46:10,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 19 letters. Loop has 2 letters. [2024-11-13 15:46:10,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:46:10,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 21 letters. Loop has 2 letters. [2024-11-13 15:46:10,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:46:10,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 19 letters. Loop has 4 letters. [2024-11-13 15:46:10,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:46:10,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2024-11-13 15:46:10,444 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 15:46:10,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2024-11-13 15:46:10,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-13 15:46:10,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-13 15:46:10,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-13 15:46:10,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:46:10,444 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:46:10,444 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:46:10,444 INFO L424 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:46:10,444 INFO L331 stractBuchiCegarLoop]: ======== Iteration 15 ============ [2024-11-13 15:46:10,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-13 15:46:10,445 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 15:46:10,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-13 15:46:10,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 03:46:10 BoogieIcfgContainer [2024-11-13 15:46:10,462 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 15:46:10,463 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:46:10,466 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:46:10,467 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:46:10,468 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:45:47" (3/4) ... [2024-11-13 15:46:10,473 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:46:10,474 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:46:10,476 INFO L158 Benchmark]: Toolchain (without parser) took 23734.37ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 118.4MB in the beginning and 113.8MB in the end (delta: 4.6MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. [2024-11-13 15:46:10,481 INFO L158 Benchmark]: CDTParser took 2.04ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:46:10,481 INFO L158 Benchmark]: CACSL2BoogieTranslator took 611.15ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 100.1MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:46:10,481 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.40ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 98.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:46:10,482 INFO L158 Benchmark]: Boogie Preprocessor took 51.50ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 97.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:46:10,482 INFO L158 Benchmark]: RCFGBuilder took 345.67ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 86.5MB in the end (delta: 10.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:46:10,482 INFO L158 Benchmark]: BuchiAutomizer took 22660.63ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 86.1MB in the beginning and 114.5MB in the end (delta: -28.4MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-11-13 15:46:10,482 INFO L158 Benchmark]: Witness Printer took 12.86ms. Allocated memory is still 218.1MB. Free memory was 114.5MB in the beginning and 114.1MB in the end (delta: 402.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:46:10,484 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.04ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 611.15ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 100.1MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.40ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 98.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.50ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 97.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 345.67ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 86.5MB in the end (delta: 10.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 22660.63ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 86.1MB in the beginning and 114.5MB in the end (delta: -28.4MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 12.86ms. Allocated memory is still 218.1MB. Free memory was 114.5MB in the beginning and 114.1MB in the end (delta: 402.5kB). 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: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~arr~0!offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 14 terminating modules (12 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function null and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * j) + length) and consists of 3 locations. 12 modules have a trivial ranking function, the largest among these consists of 34 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 22.5s and 15 iterations. TraceHistogramMax:4. Analysis of lassos took 15.8s. Construction of modules took 3.9s. Büchi inclusion checks took 2.6s. Highest rank in rank-based complementation 3. Minimization of det autom 14. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 98 StatesRemovedByMinimization, 11 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, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 422 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 420 mSDsluCounter, 580 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 459 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1847 IncrementalHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 121 mSDtfsCounter, 1847 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc10 concLT0 SILN0 SILU2 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital140 mio100 ax100 hnf100 lsp100 ukn73 mio100 lsp58 div165 bol100 ite100 ukn100 eq146 hnf94 smp71 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 52ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-13 15:46:10,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-13 15:46:10,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-13 15:46:10,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 15:46:11,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-13 15:46:11,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 15:46:11,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 15:46:11,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 15:46:11,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 15:46:12,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 15:46:12,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 15:46:12,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-13 15:46:12,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 15:46:12,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f1fec5-3117-4fc1-af23-943bb2073ad6/bin/uautomizer-verify-qhAvR1uOyd/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