./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/array16_alloca_original.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/array16_alloca_original.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB --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 628be9b0d43b46482b2f1f32ff1648acbb8b41e569549b972a02e76fffda9076 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:15:39,374 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:15:39,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-27 20:15:39,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:15:39,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:15:39,538 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:15:39,539 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:15:39,539 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:15:39,539 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:15:39,540 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:15:39,540 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:15:39,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:15:39,540 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:15:39,540 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 20:15:39,541 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 20:15:39,541 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 20:15:39,541 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 20:15:39,541 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 20:15:39,541 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 20:15:39,541 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:15:39,541 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 20:15:39,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:15:39,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:15:39,542 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 20:15:39,542 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 20:15:39,542 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 20:15:39,542 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:15:39,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:15:39,542 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 20:15:39,543 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:15:39,543 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:15:39,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:15:39,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:15:39,543 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:15:39,543 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 20:15:39,544 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 20:15:39,544 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_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 628be9b0d43b46482b2f1f32ff1648acbb8b41e569549b972a02e76fffda9076 [2024-11-27 20:15:39,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:15:39,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:15:39,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:15:39,933 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:15:39,933 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:15:39,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-15/array16_alloca_original.i [2024-11-27 20:15:43,647 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/data/855ab26a4/2f89ac6b90f24f7db5e1f5a8a48cdee1/FLAG420a7c4c3 [2024-11-27 20:15:43,972 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:15:43,972 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/sv-benchmarks/c/termination-15/array16_alloca_original.i [2024-11-27 20:15:43,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/data/855ab26a4/2f89ac6b90f24f7db5e1f5a8a48cdee1/FLAG420a7c4c3 [2024-11-27 20:15:44,002 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/data/855ab26a4/2f89ac6b90f24f7db5e1f5a8a48cdee1 [2024-11-27 20:15:44,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:15:44,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:15:44,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:15:44,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:15:44,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:15:44,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692d0520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44, skipping insertion in model container [2024-11-27 20:15:44,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:15:44,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:15:44,434 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:15:44,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:15:44,562 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:15:44,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44 WrapperNode [2024-11-27 20:15:44,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:15:44,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:15:44,565 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:15:44,565 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:15:44,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,610 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-11-27 20:15:44,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:15:44,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:15:44,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:15:44,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:15:44,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,626 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,641 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]. [2024-11-27 20:15:44,641 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,647 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:15:44,662 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:15:44,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:15:44,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:15:44,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (1/1) ... [2024-11-27 20:15:44,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:44,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:44,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:44,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 20:15:44,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:15:44,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:15:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:15:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:15:44,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:15:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:15:44,873 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:15:44,875 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:15:45,128 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-27 20:15:45,128 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:15:45,140 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:15:45,140 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:15:45,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:15:45 BoogieIcfgContainer [2024-11-27 20:15:45,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:15:45,142 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 20:15:45,142 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 20:15:45,150 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 20:15:45,151 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:15:45,151 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 08:15:44" (1/3) ... [2024-11-27 20:15:45,153 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40e8545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:15:45, skipping insertion in model container [2024-11-27 20:15:45,153 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:15:45,153 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:44" (2/3) ... [2024-11-27 20:15:45,153 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40e8545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:15:45, skipping insertion in model container [2024-11-27 20:15:45,153 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:15:45,154 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:15:45" (3/3) ... [2024-11-27 20:15:45,156 INFO L363 chiAutomizerObserver]: Analyzing ICFG array16_alloca_original.i [2024-11-27 20:15:45,237 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 20:15:45,237 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 20:15:45,238 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 20:15:45,238 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 20:15:45,238 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 20:15:45,238 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 20:15:45,238 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 20:15:45,238 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 20:15:45,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 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) [2024-11-27 20:15:45,269 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-11-27 20:15:45,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:45,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:45,277 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-27 20:15:45,278 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-27 20:15:45,278 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 20:15:45,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 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) [2024-11-27 20:15:45,281 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2024-11-27 20:15:45,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:45,281 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:45,282 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-27 20:15:45,282 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-27 20:15:45,291 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;" "assume !(main_~length~0#1 < 1);" "call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset;" "assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0;" [2024-11-27 20:15:45,291 INFO L749 eck$LassoCheckResult]: Loop: "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);" "assume 1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2);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);" "main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1;" [2024-11-27 20:15:45,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:45,299 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2024-11-27 20:15:45,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:45,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285871967] [2024-11-27 20:15:45,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:45,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:45,442 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:45,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:45,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:45,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1543273, now seen corresponding path program 1 times [2024-11-27 20:15:45,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:45,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463461168] [2024-11-27 20:15:45,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:45,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:45,512 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:45,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:45,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:45,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1182909745, now seen corresponding path program 1 times [2024-11-27 20:15:45,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:45,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036744859] [2024-11-27 20:15:45,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:45,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:45,594 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:45,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:46,156 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:46,158 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:46,158 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:46,158 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:46,159 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:15:46,159 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:46,159 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:46,159 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:46,159 INFO L132 ssoRankerPreferences]: Filename of dumped script: array16_alloca_original.i_Iteration1_Lasso [2024-11-27 20:15:46,159 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:46,160 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:46,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:46,200 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:46,208 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:46,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:46,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:46,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:46,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:46,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:46,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:46,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:46,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:46,859 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:46,865 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:15:46,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:46,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:46,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:46,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-27 20:15:46,878 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 [2024-11-27 20:15:46,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:46,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:46,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:46,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:46,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:46,908 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:46,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:46,913 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:46,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-27 20:15:46,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:46,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:46,928 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:46,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-27 20:15:46,934 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 [2024-11-27 20:15:46,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:46,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:46,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:46,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:46,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:46,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:46,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:46,964 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:46,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:46,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:46,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:46,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:46,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-27 20:15:46,985 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 [2024-11-27 20:15:47,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:47,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:47,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:47,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:47,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:47,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:47,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:47,010 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:47,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:47,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:47,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:47,025 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:47,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-27 20:15:47,031 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 [2024-11-27 20:15:47,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:47,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:47,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:47,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:47,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:47,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:47,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:47,058 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:47,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:47,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:47,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:47,073 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:47,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-27 20:15:47,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:15:47,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:47,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:47,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:47,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:47,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:47,098 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:47,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:47,103 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:47,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:47,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:47,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:47,118 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:47,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-27 20:15:47,124 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 [2024-11-27 20:15:47,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:47,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:47,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:47,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:47,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:47,143 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:47,143 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:47,147 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:47,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-27 20:15:47,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:47,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:47,163 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:47,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-27 20:15:47,166 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 [2024-11-27 20:15:47,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:47,183 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:47,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:47,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:47,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:47,184 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:47,184 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:47,187 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:47,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-27 20:15:47,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:47,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:47,198 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:47,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-27 20:15:47,202 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 [2024-11-27 20:15:47,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:47,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:47,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:47,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:47,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:47,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:47,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:47,219 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:47,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:47,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:47,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:47,234 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:47,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-27 20:15:47,259 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 [2024-11-27 20:15:47,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:47,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:47,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:47,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:47,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:47,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:47,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:47,279 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:47,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-27 20:15:47,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:47,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:47,295 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:47,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-27 20:15:47,298 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 [2024-11-27 20:15:47,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:47,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:47,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:47,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:47,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:15:47,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:15:47,333 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:47,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-27 20:15:47,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:47,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:47,348 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:47,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-27 20:15:47,353 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 [2024-11-27 20:15:47,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:47,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:47,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:47,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:47,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:15:47,390 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:15:47,417 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:15:47,473 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2024-11-27 20:15:47,481 INFO L444 ModelExtractionUtils]: 1 out of 19 variables were initially zero. Simplification set additionally 15 variables to zero. [2024-11-27 20:15:47,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:47,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:47,487 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:47,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-27 20:15:47,491 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:15:47,514 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-27 20:15:47,514 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:15:47,515 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~length~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-27 20:15:47,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-27 20:15:47,543 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2024-11-27 20:15:47,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:47,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:15:47,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:47,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:15:47,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:47,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:47,744 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 [2024-11-27 20:15:47,746 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-27 20:15:47,826 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 32 states and 44 transitions. Complement of second has 6 states. [2024-11-27 20:15:47,830 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 [2024-11-27 20:15:47,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-27 20:15:47,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2024-11-27 20:15:47,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-27 20:15:47,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:47,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-27 20:15:47,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:47,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 8 letters. [2024-11-27 20:15:47,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:47,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 44 transitions. [2024-11-27 20:15:47,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:15:47,856 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 14 states and 19 transitions. [2024-11-27 20:15:47,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-27 20:15:47,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-27 20:15:47,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2024-11-27 20:15:47,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:15:47,860 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-11-27 20:15:47,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2024-11-27 20:15:47,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-27 20:15:47,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 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) [2024-11-27 20:15:47,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2024-11-27 20:15:47,890 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-11-27 20:15:47,890 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-11-27 20:15:47,890 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 20:15:47,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2024-11-27 20:15:47,891 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:15:47,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:47,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:47,891 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:47,891 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:15:47,892 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~nondet207#1, main_#t~mem208#1, main_#t~post209#1, main_#t~mem210#1, main_#t~post211#1, main_#t~post212#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;" "assume !(main_~length~0#1 < 1);" "call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset;" "assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0;" "assume !(main_~i~0#1 < main_~length~0#1);" "main_~j~0#1 := 0;" [2024-11-27 20:15:47,892 INFO L749 eck$LassoCheckResult]: Loop: "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);" "assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1;" [2024-11-27 20:15:47,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:47,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815574, now seen corresponding path program 1 times [2024-11-27 20:15:47,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:47,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092873623] [2024-11-27 20:15:47,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:47,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:48,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:48,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092873623] [2024-11-27 20:15:48,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092873623] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:48,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223386212] [2024-11-27 20:15:48,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:48,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:48,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:48,056 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:48,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:15:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:48,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:15:48,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:48,148 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:48,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223386212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:48,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:48,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-27 20:15:48,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164921473] [2024-11-27 20:15:48,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:48,178 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:15:48,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:48,179 INFO L85 PathProgramCache]: Analyzing trace with hash 70635, now seen corresponding path program 1 times [2024-11-27 20:15:48,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:48,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507168082] [2024-11-27 20:15:48,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:48,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:48,206 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:48,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:48,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:48,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:15:48,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:15:48,342 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:15:48,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:48,433 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2024-11-27 20:15:48,434 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2024-11-27 20:15:48,435 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:15:48,436 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2024-11-27 20:15:48,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-27 20:15:48,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-27 20:15:48,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2024-11-27 20:15:48,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:15:48,439 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-27 20:15:48,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2024-11-27 20:15:48,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2024-11-27 20:15:48,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:15:48,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2024-11-27 20:15:48,441 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2024-11-27 20:15:48,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:15:48,443 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2024-11-27 20:15:48,445 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 20:15:48,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2024-11-27 20:15:48,446 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:15:48,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:48,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:48,446 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:48,446 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:15:48,447 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "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;" "assume !(main_~length~0#1 < 1);" "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;" "assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0;" "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);" "assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1;" "main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1;" "assume !(main_~i~0#1 < main_~length~0#1);" "main_~j~0#1 := 0;" [2024-11-27 20:15:48,447 INFO L749 eck$LassoCheckResult]: Loop: "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);" "assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1;" [2024-11-27 20:15:48,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:48,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1390008196, now seen corresponding path program 1 times [2024-11-27 20:15:48,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:48,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962533729] [2024-11-27 20:15:48,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:48,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:48,478 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:48,499 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:48,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:48,503 INFO L85 PathProgramCache]: Analyzing trace with hash 70635, now seen corresponding path program 2 times [2024-11-27 20:15:48,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:48,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853568050] [2024-11-27 20:15:48,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:48,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:48,514 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:48,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:48,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:48,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1954425456, now seen corresponding path program 1 times [2024-11-27 20:15:48,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:48,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785687398] [2024-11-27 20:15:48,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:48,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:48,551 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:48,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:48,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-27 20:15:49,014 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:49,015 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:49,015 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:49,015 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:49,015 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:15:49,015 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:49,015 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:49,016 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:49,016 INFO L132 ssoRankerPreferences]: Filename of dumped script: array16_alloca_original.i_Iteration3_Lasso [2024-11-27 20:15:49,016 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:49,016 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:49,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:49,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:49,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:49,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:49,248 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:49,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:49,255 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:49,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:49,262 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:49,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:49,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:49,711 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:49,711 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:15:49,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:49,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:49,718 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:49,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-27 20:15:49,721 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 [2024-11-27 20:15:49,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:49,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:49,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:49,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:49,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:49,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:49,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:49,746 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:49,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-27 20:15:49,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:49,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:49,759 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:49,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-27 20:15:49,763 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 [2024-11-27 20:15:49,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:49,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:49,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:49,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:49,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:49,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:49,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:49,780 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:49,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:49,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:49,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:49,791 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:49,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-27 20:15:49,796 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 [2024-11-27 20:15:49,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:49,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:49,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:49,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:49,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:15:49,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:15:49,821 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:49,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:49,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:49,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:49,832 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:49,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-27 20:15:49,837 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 [2024-11-27 20:15:49,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:49,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:49,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:49,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:49,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:15:49,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:15:49,863 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:49,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:49,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:49,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:49,879 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:49,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-27 20:15:49,884 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 [2024-11-27 20:15:49,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:49,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:49,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:49,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:49,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:15:49,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:15:49,914 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:49,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:49,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:49,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:49,928 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:49,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-27 20:15:49,933 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 [2024-11-27 20:15:49,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:49,951 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2024-11-27 20:15:49,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:49,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:49,958 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2024-11-27 20:15:49,958 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:15:49,969 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:49,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:49,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:49,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:49,984 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:49,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-27 20:15:49,989 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 [2024-11-27 20:15:50,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:50,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:50,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:50,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:50,013 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:15:50,013 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:15:50,028 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:15:50,055 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2024-11-27 20:15:50,055 INFO L444 ModelExtractionUtils]: 1 out of 19 variables were initially zero. Simplification set additionally 15 variables to zero. [2024-11-27 20:15:50,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:50,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:50,060 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:50,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-27 20:15:50,064 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:15:50,080 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-27 20:15:50,080 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:15:50,080 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~length~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~length~0#1 Supporting invariants [] [2024-11-27 20:15:50,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:50,099 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2024-11-27 20:15:50,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:50,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:15:50,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:50,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:15:50,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:50,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:50,194 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 [2024-11-27 20:15:50,195 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:15:50,222 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 26 transitions. Complement of second has 5 states. [2024-11-27 20:15:50,223 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 [2024-11-27 20:15:50,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:15:50,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2024-11-27 20:15:50,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 11 letters. Loop has 3 letters. [2024-11-27 20:15:50,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:50,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 14 letters. Loop has 3 letters. [2024-11-27 20:15:50,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:50,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 11 letters. Loop has 6 letters. [2024-11-27 20:15:50,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:50,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 26 transitions. [2024-11-27 20:15:50,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:15:50,226 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 26 transitions. [2024-11-27 20:15:50,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-27 20:15:50,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-27 20:15:50,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2024-11-27 20:15:50,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:50,228 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-11-27 20:15:50,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2024-11-27 20:15:50,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-27 20:15:50,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:15:50,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2024-11-27 20:15:50,230 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-11-27 20:15:50,230 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-11-27 20:15:50,230 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 20:15:50,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2024-11-27 20:15:50,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:15:50,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:50,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:50,232 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:50,232 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:15:50,232 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "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;" "assume !(main_~length~0#1 < 1);" "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;" "assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0;" "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);" "assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1;" "main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1;" "assume !(main_~i~0#1 < main_~length~0#1);" "main_~j~0#1 := 0;" "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);" "assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1;" [2024-11-27 20:15:50,232 INFO L749 eck$LassoCheckResult]: Loop: "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);" "assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1;" [2024-11-27 20:15:50,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:50,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1954425454, now seen corresponding path program 1 times [2024-11-27 20:15:50,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:50,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512983039] [2024-11-27 20:15:50,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:50,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:50,274 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:50,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:50,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:50,312 INFO L85 PathProgramCache]: Analyzing trace with hash 70635, now seen corresponding path program 3 times [2024-11-27 20:15:50,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:50,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840028381] [2024-11-27 20:15:50,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:50,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:50,323 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:50,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:50,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:50,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1711994694, now seen corresponding path program 1 times [2024-11-27 20:15:50,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:50,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124229867] [2024-11-27 20:15:50,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:50,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:50,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:50,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124229867] [2024-11-27 20:15:50,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124229867] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:50,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080860980] [2024-11-27 20:15:50,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:50,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:50,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:50,463 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:50,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 20:15:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:50,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:15:50,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:50,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:50,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080860980] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:50,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:50,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-11-27 20:15:50,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351681530] [2024-11-27 20:15:50,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:50,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:50,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:15:50,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:15:50,621 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 9 Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2024-11-27 20:15:50,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:50,648 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2024-11-27 20:15:50,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 30 transitions. [2024-11-27 20:15:50,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:15:50,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 22 states and 27 transitions. [2024-11-27 20:15:50,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-27 20:15:50,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-27 20:15:50,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2024-11-27 20:15:50,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:50,650 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-11-27 20:15:50,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2024-11-27 20:15:50,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2024-11-27 20:15:50,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:15:50,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2024-11-27 20:15:50,652 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-11-27 20:15:50,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:15:50,654 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-11-27 20:15:50,654 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-27 20:15:50,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2024-11-27 20:15:50,654 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:15:50,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:50,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:50,655 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:50,655 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:15:50,655 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "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;" "assume !(main_~length~0#1 < 1);" "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;" "assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0;" "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);" "assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1;" "main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1;" "assume !(main_~i~0#1 < main_~length~0#1);" "main_~j~0#1 := 0;" "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);" "assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1;" "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);" "assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1;" [2024-11-27 20:15:50,656 INFO L749 eck$LassoCheckResult]: Loop: "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);" "assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1;" [2024-11-27 20:15:50,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:50,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1712054274, now seen corresponding path program 2 times [2024-11-27 20:15:50,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:50,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525031720] [2024-11-27 20:15:50,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:50,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:50,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-27 20:15:50,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:50,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525031720] [2024-11-27 20:15:50,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525031720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:50,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939208672] [2024-11-27 20:15:50,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:50,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:50,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:50,868 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:50,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 20:15:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:50,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:15:50,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:51,011 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:51,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939208672] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:51,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:51,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-27 20:15:51,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950241277] [2024-11-27 20:15:51,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:51,072 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:15:51,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:51,073 INFO L85 PathProgramCache]: Analyzing trace with hash 70635, now seen corresponding path program 4 times [2024-11-27 20:15:51,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:51,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677153450] [2024-11-27 20:15:51,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:51,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:51,079 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:51,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:51,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:51,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:15:51,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:15:51,152 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 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) [2024-11-27 20:15:51,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:51,281 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2024-11-27 20:15:51,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 52 transitions. [2024-11-27 20:15:51,283 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:15:51,284 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 27 states and 33 transitions. [2024-11-27 20:15:51,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-27 20:15:51,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-27 20:15:51,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 33 transitions. [2024-11-27 20:15:51,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:51,285 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 33 transitions. [2024-11-27 20:15:51,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 33 transitions. [2024-11-27 20:15:51,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2024-11-27 20:15:51,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:15:51,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2024-11-27 20:15:51,287 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-11-27 20:15:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:15:51,289 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-11-27 20:15:51,289 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-27 20:15:51,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2024-11-27 20:15:51,289 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:15:51,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:51,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:51,290 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:51,290 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:15:51,290 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "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;" "assume !(main_~length~0#1 < 1);" "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;" "assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0;" "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);" "assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1;" "main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1;" "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);" "assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1;" "main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1;" "assume !(main_~i~0#1 < main_~length~0#1);" "main_~j~0#1 := 0;" "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);" "assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1;" "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);" "assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1;" [2024-11-27 20:15:51,290 INFO L749 eck$LassoCheckResult]: Loop: "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);" "assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1;" [2024-11-27 20:15:51,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:51,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1830436772, now seen corresponding path program 3 times [2024-11-27 20:15:51,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:51,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557717879] [2024-11-27 20:15:51,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:51,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:51,330 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:51,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:51,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:51,376 INFO L85 PathProgramCache]: Analyzing trace with hash 70635, now seen corresponding path program 5 times [2024-11-27 20:15:51,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:51,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733637738] [2024-11-27 20:15:51,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:51,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:51,385 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:51,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:51,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:51,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1637125480, now seen corresponding path program 4 times [2024-11-27 20:15:51,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:51,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560921951] [2024-11-27 20:15:51,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:51,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:51,454 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:51,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:52,392 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:52,392 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:52,392 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:52,392 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:52,393 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:15:52,393 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:52,393 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:52,393 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:52,393 INFO L132 ssoRankerPreferences]: Filename of dumped script: array16_alloca_original.i_Iteration6_Lasso [2024-11-27 20:15:52,393 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:52,393 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:52,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:52,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:52,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:52,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:52,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:52,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:52,770 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:52,772 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:52,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:52,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:52,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:53,305 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:53,306 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:15:53,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:53,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:53,311 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:53,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-27 20:15:53,313 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 [2024-11-27 20:15:53,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:53,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:53,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:53,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:53,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:53,327 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:53,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:53,329 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:53,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-27 20:15:53,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:53,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:53,339 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:53,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-27 20:15:53,342 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 [2024-11-27 20:15:53,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:53,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:53,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:53,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:53,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:53,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:53,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:53,358 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:53,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-27 20:15:53,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:53,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:53,369 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:53,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-27 20:15:53,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:15:53,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:53,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:53,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:53,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:53,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:53,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:53,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:53,394 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:53,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-27 20:15:53,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:53,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:53,409 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:53,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-27 20:15:53,414 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 [2024-11-27 20:15:53,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:53,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:53,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:53,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:53,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:53,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:53,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:53,438 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:53,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-27 20:15:53,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:53,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:53,453 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:53,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-27 20:15:53,457 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 [2024-11-27 20:15:53,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:53,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:53,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:53,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:53,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:53,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:53,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:53,481 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:53,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:53,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:53,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:53,497 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:53,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-27 20:15:53,502 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 [2024-11-27 20:15:53,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:53,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:53,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:53,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:53,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-27 20:15:53,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-27 20:15:53,548 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:15:53,589 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2024-11-27 20:15:53,589 INFO L444 ModelExtractionUtils]: 1 out of 19 variables were initially zero. Simplification set additionally 15 variables to zero. [2024-11-27 20:15:53,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:53,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:53,595 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:53,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-27 20:15:53,597 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:15:53,619 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-11-27 20:15:53,620 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:15:53,620 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 [] [2024-11-27 20:15:53,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-27 20:15:53,654 INFO L156 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2024-11-27 20:15:53,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:53,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:15:53,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:53,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:15:53,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:53,783 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 [2024-11-27 20:15:53,783 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:15:53,818 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 37 transitions. Complement of second has 5 states. [2024-11-27 20:15:53,819 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 [2024-11-27 20:15:53,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:15:53,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2024-11-27 20:15:53,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 21 letters. Loop has 3 letters. [2024-11-27 20:15:53,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:53,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 24 letters. Loop has 3 letters. [2024-11-27 20:15:53,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:53,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 21 letters. Loop has 6 letters. [2024-11-27 20:15:53,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:53,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2024-11-27 20:15:53,822 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:15:53,823 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 37 transitions. [2024-11-27 20:15:53,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-11-27 20:15:53,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-27 20:15:53,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2024-11-27 20:15:53,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:53,823 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-11-27 20:15:53,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2024-11-27 20:15:53,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-27 20:15:53,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 29 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) [2024-11-27 20:15:53,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-11-27 20:15:53,826 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-11-27 20:15:53,827 INFO L425 stractBuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-11-27 20:15:53,827 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-27 20:15:53,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 37 transitions. [2024-11-27 20:15:53,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:15:53,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:53,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:53,828 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:53,828 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:15:53,829 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "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;" "assume !(main_~length~0#1 < 1);" "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;" "assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0;" "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);" "assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1;" "main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1;" "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);" "assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1;" "main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1;" "assume !(main_~i~0#1 < main_~length~0#1);" "main_~j~0#1 := 0;" "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);" "assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1;" "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);" "assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1;" "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);" "assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1;" [2024-11-27 20:15:53,829 INFO L749 eck$LassoCheckResult]: Loop: "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);" "assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1;" [2024-11-27 20:15:53,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:53,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1637125482, now seen corresponding path program 5 times [2024-11-27 20:15:53,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:53,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119149744] [2024-11-27 20:15:53,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:53,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:54,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-27 20:15:55,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:55,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119149744] [2024-11-27 20:15:55,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119149744] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:55,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774066362] [2024-11-27 20:15:55,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:55,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:55,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:55,437 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:55,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-27 20:15:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:55,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 20:15:55,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:55,568 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 [2024-11-27 20:15:55,605 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 [2024-11-27 20:15:55,759 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 17 treesize of output 9 [2024-11-27 20:15:55,779 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:55,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774066362] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:55,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:55,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 5] total 20 [2024-11-27 20:15:55,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888797780] [2024-11-27 20:15:55,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:55,925 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:15:55,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:55,927 INFO L85 PathProgramCache]: Analyzing trace with hash 70635, now seen corresponding path program 6 times [2024-11-27 20:15:55,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:55,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758461360] [2024-11-27 20:15:55,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:55,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:55,935 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:55,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:56,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:56,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:15:56,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:15:56,031 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. cyclomatic complexity: 11 Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 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) [2024-11-27 20:15:56,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:56,652 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2024-11-27 20:15:56,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 69 transitions. [2024-11-27 20:15:56,654 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2024-11-27 20:15:56,654 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 56 states and 65 transitions. [2024-11-27 20:15:56,655 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2024-11-27 20:15:56,655 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2024-11-27 20:15:56,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 65 transitions. [2024-11-27 20:15:56,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:56,655 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 65 transitions. [2024-11-27 20:15:56,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 65 transitions. [2024-11-27 20:15:56,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 33. [2024-11-27 20:15:56,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 32 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) [2024-11-27 20:15:56,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2024-11-27 20:15:56,666 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 39 transitions. [2024-11-27 20:15:56,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:15:56,667 INFO L425 stractBuchiCegarLoop]: Abstraction has 33 states and 39 transitions. [2024-11-27 20:15:56,667 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-27 20:15:56,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 39 transitions. [2024-11-27 20:15:56,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-27 20:15:56,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:56,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:56,669 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:56,669 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2024-11-27 20:15:56,669 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "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;" "assume !(main_~length~0#1 < 1);" "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;" "assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0;" "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);" "assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1;" "main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1;" "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);" "assume !(1 == (if main_#t~mem208#1 < 0 && 0 != main_#t~mem208#1 % 2 then main_#t~mem208#1 % 2 - 2 else main_#t~mem208#1 % 2));havoc main_#t~mem208#1;" "main_#t~post209#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1;" "assume !(main_~i~0#1 < main_~length~0#1);" "main_~j~0#1 := 0;" "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);" "assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1;" "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);" "assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1;" "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);" "assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1;" "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);" "assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1;" [2024-11-27 20:15:56,669 INFO L749 eck$LassoCheckResult]: Loop: "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);" "assume 0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2);havoc main_#t~mem210#1;main_#t~post211#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post211#1;havoc main_#t~post211#1;" "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);" "assume !(0 == (if main_#t~mem210#1 < 0 && 0 != main_#t~mem210#1 % 2 then main_#t~mem210#1 % 2 - 2 else main_#t~mem210#1 % 2));havoc main_#t~mem210#1;main_#t~post212#1 := main_~j~0#1;main_~j~0#1 := main_#t~post212#1 - 1;havoc main_#t~post212#1;" [2024-11-27 20:15:56,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:56,670 INFO L85 PathProgramCache]: Analyzing trace with hash -2043397850, now seen corresponding path program 6 times [2024-11-27 20:15:56,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:56,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452314329] [2024-11-27 20:15:56,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:56,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:56,735 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:56,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:56,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:56,769 INFO L85 PathProgramCache]: Analyzing trace with hash 2104328131, now seen corresponding path program 1 times [2024-11-27 20:15:56,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:56,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989183840] [2024-11-27 20:15:56,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:56,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:56,778 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:56,786 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:56,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:56,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1964607784, now seen corresponding path program 7 times [2024-11-27 20:15:56,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:56,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676022817] [2024-11-27 20:15:56,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:56,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:56,864 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:56,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:58,150 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:58,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 08:15:58 BoogieIcfgContainer [2024-11-27 20:15:58,252 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 20:15:58,253 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:15:58,253 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:15:58,253 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:15:58,254 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:15:45" (3/4) ... [2024-11-27 20:15:58,256 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 20:15:58,319 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8680c21c-e85f-44b4-a363-eadf39e68185/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:15:58,319 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:15:58,320 INFO L158 Benchmark]: Toolchain (without parser) took 14313.09ms. Allocated memory was 109.1MB in the beginning and 167.8MB in the end (delta: 58.7MB). Free memory was 82.9MB in the beginning and 96.5MB in the end (delta: -13.7MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2024-11-27 20:15:58,321 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 39.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:15:58,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.13ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 64.7MB in the end (delta: 17.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:15:58,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.10ms. Allocated memory is still 109.1MB. Free memory was 64.7MB in the beginning and 63.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:15:58,323 INFO L158 Benchmark]: Boogie Preprocessor took 49.84ms. Allocated memory is still 109.1MB. Free memory was 63.1MB in the beginning and 61.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:15:58,324 INFO L158 Benchmark]: RCFGBuilder took 478.54ms. Allocated memory is still 109.1MB. Free memory was 61.7MB in the beginning and 51.2MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:15:58,325 INFO L158 Benchmark]: BuchiAutomizer took 13110.51ms. Allocated memory was 109.1MB in the beginning and 167.8MB in the end (delta: 58.7MB). Free memory was 50.9MB in the beginning and 100.1MB in the end (delta: -49.2MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2024-11-27 20:15:58,325 INFO L158 Benchmark]: Witness Printer took 66.77ms. Allocated memory is still 167.8MB. Free memory was 100.1MB in the beginning and 96.5MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:15:58,327 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 39.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 555.13ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 64.7MB in the end (delta: 17.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.10ms. Allocated memory is still 109.1MB. Free memory was 64.7MB in the beginning and 63.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.84ms. Allocated memory is still 109.1MB. Free memory was 63.1MB in the beginning and 61.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 478.54ms. Allocated memory is still 109.1MB. Free memory was 61.7MB in the beginning and 51.2MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 13110.51ms. Allocated memory was 109.1MB in the beginning and 167.8MB in the end (delta: 58.7MB). Free memory was 50.9MB in the beginning and 100.1MB in the end (delta: -49.2MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Witness Printer took 66.77ms. Allocated memory is still 167.8MB. Free memory was 100.1MB in the beginning and 96.5MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 3 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (((long) -1 * i) + length) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * j) + length) and consists of 3 locations. One deterministic module has affine ranking function (((long) -1 * j) + length) and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 21 locations. The remainder module has 33 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.9s and 8 iterations. TraceHistogramMax:4. Analysis of lassos took 11.3s. Construction of modules took 0.4s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 31 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 184 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 108 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 426 IncrementalHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 76 mSDtfsCounter, 426 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU3 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital130 mio100 ax100 hnf100 lsp100 ukn78 mio100 lsp53 div198 bol100 ite100 ukn100 eq149 hnf94 smp57 dnf105 smp98 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 4 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 377]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) VAL [length=2] [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [arr={2:0}, length=2] [L369] COND FALSE !(!arr) [L370] i=0 VAL [arr={2:0}, i=0, length=2] [L370] COND TRUE i